Journal of Applied and Natural Science, Mar 19, 2023
Sustainable crop production in coastal areas of arid and semi-arid regions is a daunting task due... more Sustainable crop production in coastal areas of arid and semi-arid regions is a daunting task due to extreme climatic variability, land and water degradation, and heterogeneous soil fertility (Yadav, 2003; Moharana et al., 2019). In India, land degradation affects nearly 120.72 million hectares (Mha), with soil salinity affecting 5.50 million hectares (Mha) (Anonymous, 2020). The country loses 16.84 million tons of agricultural production annually, worth US$ 3.1 billion on these SAS (Sharma et al., 2015). Soil and water salinity stress in
Indian journal of agricultural research, Apr 11, 2022
Background: Soil fertility is a significant natural property which decides the health and quality... more Background: Soil fertility is a significant natural property which decides the health and quality of land resources. Pulse productivity diminishes nowadays under rain fed condition due to improper nutrient management practices. Hence the present study was carried out to assess the soil fertility status under major pulses growing area by using advanced geo statistical tool with ArcGIS. M ethods: Soil survey was taken in 14 revenue villages in Melur block, Madurai district. Soil samples were col lected and analysed for its nutrient properties. The Parker's Nutrient Index and soil fertility maps were prepared by using ArcGIS. Result: Pulses growing soils were mostly neutral in pH and soluble salt content was low. The organic carbon and available nitrogen content was low to medium. The available phosphorus and potassium status were medium to hig h. Hence proper nutrient management practices are to be needed for augment pulse production in such area.
Soil texture is a vital variable that reflects a number of soil properties such as Bulk Density, ... more Soil texture is a vital variable that reflects a number of soil properties such as Bulk Density, Particle Density, Infiltration Rate, Hydraulic conductivity, Water holding capacity, nutrient storage and availability as well as transport and binding and stability of soil aggregates. For better tuber development in cassava soil texture plays vital role. The main objective of this study is to produce kriged maps (Ordinary kriging map and semivariogram) to interpolate the soil texture for Tapioca growing soils of Paramthy block, Namakkal District at unsampled locations. In this study, nearly 54 surface samples were collected covering 19,149 ha of agriculture land with dominant cultivation of Tapioca. This study helps spatial interpolation of unsampled location of soil texture i.e. sand, silt and clay content which rules the soil physical, chemical and hydrological properties. The average standard error for sand and clay are 0.2 and 0.19 respectively. The results such as provided maps a...
Silicon is an important beneficial element for improving the photosynthetic efficiency and stress... more Silicon is an important beneficial element for improving the photosynthetic efficiency and stress alleviation in crops. Phytoliths are silicon body accumulated in plant parts (plant stone) through bio-mineralization process and there is a significant positive correlation between Si content and phytolith content of crop materials including the leaves, stems and sheaths. A field experiment was focused on the effect of Soil Test Crop Response based fertilizers with silicon sources on growth, yield attributes and phytolith content of Maize hybrid Co 6 at Arasanur, Sivagangai district, Tamil Nadu under Typic Rhodustalf soil during 2021. The results showed that application of Soil Test Crop Response based N, P2O5, K2O + calcium silicate @ 400 kg ha-1 and potassium silicate @ 1% foliar spray at knee high stage (25th Days After Sowing) and vegetative stage (45th Days After Sowing) performed well in enhancing growth and yield attributes viz., Leaf Area Index (5.95), plant height (228 cm), co...
Background: Soil fertility is a significant natural property which decides the health and quality... more Background: Soil fertility is a significant natural property which decides the health and quality of land resources. Pulse productivity diminishes nowadays under rain fed condition due to improper nutrient management practices. Hence the present study was carried out to assess the soil fertility status under major pulses growing area by using advanced geo statistical tool with ArcGIS. Methods: Soil survey was taken in 14 revenue villages in Melur block, Madurai district. Soil samples were collected and analysed for its nutrient properties. The Parker’s Nutrient Index and soil fertility maps were prepared by using ArcGIS. Result: Pulses growing soils were mostly neutral in pH and soluble salt content was low. The organic carbon and available nitrogen content was low to medium. The available phosphorus and potassium status were medium to high. Hence proper nutrient management practices are to be needed for augment pulse production in such area.
The experiment was carried out in Cassava growing tract of Paramathy velur block, Namakkal distri... more The experiment was carried out in Cassava growing tract of Paramathy velur block, Namakkal district, Tamil Nadu to evaluate the suitability of soil for cassava production. Detailed soil survey was carried out using cadastral map as base map of 1: 50,000 to identify the morphological, physical, chemical and exchangeable properties of soils and climatic parameters like moisture and temperature regimes. The classification was done up to subgroup level by following the guidelines of USDA soil taxonomy (soil survey staff, 2006). The study area falls under ustic moisture, isohyperthermic temperature regime. Pedons P1, P4 and P5 were classified as Typic Calciusterts, P3 called as Typic Duriustepts, P2 as Typic Haplustalfs whereas P6 named as Typic Plinthustalfs. Based on the analytical data, the evaluation was carried out with baseline of NBSS & LUP suitability criteria guideline for cassava, reported that P1 and P2 were considered to be highly suitable (S1) soils for cassava production, P3 and P4 falls under moderately suitable (S2) category, P5 is not suitable (N1) for tapioca cultivation whereas P6 is Marginally suitable (S3) for cassava production.
Biochar has been recently proposed as a management strategy to improve crop productivity and glob... more Biochar has been recently proposed as a management strategy to improve crop productivity and global warming mitigation. Biochar may be added to soils with the goal to improve the soil properties and relocate an amount of conventional fossil fuel based fertilizers and sequester carbon. Biochar production and incorporation in soil must play a role in climate change mitigation. The need for further clarity on optimizing biochar application to various crop yields is necessary if it is to gain widespread acceptance as a soil amendment. There is urgent need to intensify agricultural production to secure food supply for the ever increasing population especially in developing country like India of the tropics. Biochar proponents have placed on biochar stability in soil and it also includes increased soil fertility and water holding capacity, increased crop production and remediation of contaminated soils. The biochar have potential to feasibly and sustainably sequester/offset over 1 Pg of C...
In Madurai North taluk, Madurai district, TamilNadu , India from Alagar hill's toe slope near Aya... more In Madurai North taluk, Madurai district, TamilNadu , India from Alagar hill's toe slope near Ayathampatty to Vaigai river's alluvial fan near Vandiyur, ten different soil profile sites were fixed approximately at 2 km intervals and 2 pedons in each site were dug up to 50 m apart, examined and morphological properties were described. The data revealed that the development of pedon in different lands is as follows. The sites 1, 2 and 3 fall under foot hill 4, 5 and 6 are distributed in basin position, while the sites 7 and 8 occupy basin rim position and the sites 9 and 10 are in alluvial fan. The solum depth is a function of slope generally. The reddish colour is dominant in upper topography up to basin position. But the alluvial fan position soil is pale yellow to olive. Based on the soil properties, the pedon development in the transect follows the order: Basin> upper terrace > basin rim > lower terrace > foot hill > alluvial fan. The morphological details reveal that the solum depth increases with decreasing elevation from foot hill to alluvial fan position
A field experiment was conducted to evaluate the efficacy of different chemicals on improved spro... more A field experiment was conducted to evaluate the efficacy of different chemicals on improved sprouting of sugarcane bud chips. The study consisted of nine treatments (T 1-Untreated check, T 2-Foliar spray of 1%Urea in 15 th and 25 th day after planting, T 3-Foliar spray of marco and micronutrients solution weekly twice from 10 th DAP to 25 th DAP, T 4-Soaking of bud chips in 10% Seaweed extract for 2 hrs, T 5-T 3 + Soaking of bud chips in 0.01% Ethrel for 2 hrs, T 6-T 3 + Soaking of bud chips in 0.01% Ethrel and 0.1% Calcium chloride for 2 hrs, T 7-Soaking of bud chips in 20% Seaweed extract for 2 hrs, T 8-Soaking of bud chips in 0.01% Ethrel for 2 hrs, T 9-T 3 + Soaking of bud chips in 0.1% Calcium chloride for 2 hrs). In this study, CoC 24 variety was selected and three replications laid out in randomized block design. Significant variation in morphophysiological characters viz., survival percentage, leaf area, seedling vigour index, shoot length and root length was observed with different chemical treatments. Application of foliar spray of micro and macronutrient solution in weekly twice to each portray seedlings from 10 th DAP to 25 th DAP + soaking of bud chips in 0.01% etherl and 0.1% calcium chloride for 2 hrs registered significantly maximum mean values of growth parameters in plant and ratoon crop viz., tiller population, millable cane, cane length, cane girth, single cane weight and number of nodes. The same treatment significantly registered the maximum cane yield and sugar yield.
The pedological characterization of alluvial tract soils of Vaigai river basin, Madurai District,... more The pedological characterization of alluvial tract soils of Vaigai river basin, Madurai District, Tamil Nadu was taken during 2019-20. Initially a Reconnaissance Soil Survey was carried out with Toposheet as a base map. Totally nine representative pedons in Northernand Southern bank of the Vaigai river alluvial basin were selected and studied for their morphological characteristics. Along the course of Vaigai river basin, deposition of alluvial soil was evidenced by the poorly developed AC profiles in both side. The depth of the soil varied from d4 to d5 in both banks. The color of the pedons varies with hue ranging from 10YR to 7.5YR, value 2 to 6and chroma 2- 8 and in Northern bank ; from 10YR to 7.5YR,values varies by 2.5 to 6 and chroma by 1 to 6 in the Southern bank. The texture of soil varied from weak to structure less. Some yellowish brown mottles with jarosite were foundin the Northern bank and micaceous coatings found in the Southern banks. The calcium carbonate nodules we...
Soil is an important source of human life and agricultural production. Studying on the pedon and ... more Soil is an important source of human life and agricultural production. Studying on the pedon and its site characteristics pave the way for understanding the nature of soils and its utility. A study on pedological characterization of soils in Melur block, Madurai District (Tamil Nadu), was carried out during 2019-2020 using grid sampling with village map/cadastral maps. Soil mapping unit-based soil samples were collected in Chunampoor, Thuvarangulam, Poonjuthi and Veppapadupu and pedons were characterized as per the standard procedure. The results showed that soils were moderately deep to very deep in nature, ranging from 2.5 YR 3/6 to 10YR 4/6. The soil texture varied from sandy clay loam to sandy clay with weak to moderate sub-angular blocky structure. The consistency of soil varied from slightly hard to very hard when dry, very friable to firm when moist, slightly sticky to very sticky and slightly plastic to very plastic in wet condition. The crops viz., paddy, sugarcane, banana...
The distinguishing characteristic of saline soils contains sufficient neutral soluble salts to ad... more The distinguishing characteristic of saline soils contains sufficient neutral soluble salts to adversely affect the growth of most of the crop plants. Saline soils are those which have an electrical conductivity of more than 4 dS/m at 25 °C. Different ways of saline soil reclamation practices were followed to alleviate the saline soil problem and the practices encompasses namely, scraping, flushing and leaching, agronomic practices, crop rotation, selected crop cultivation, different irrigation practices, drainage of soil, gypsum application and biological methods of saline soil removal by applying manures, green manures and bulky organic manures, etc.
Field experiment was conducted at Sugarcane Research Station (Tamil Nadu Agricultural University)... more Field experiment was conducted at Sugarcane Research Station (Tamil Nadu Agricultural University), Cuddalore to assess the feasibility of various organic modules for sustainable sugarcane production with two varieties viz., CoC (SC) 23 and Co86032 under eight different organic sources and inorganic fertilizers. The results showed that between the two varieties studied, CoC (SC) 23 (V1) recorded higher germination (77.2%), root length (37.7cm) and wide spread (18.1cm) roots, more number of tillers (122161/ha), higher leaf area (206 cm /leaf), lower specific leaf area (85 cm/g) and higher relative water content (77%) irrespective of the treatments. The variety CoC (SC) 23 also produced more number of shoots on 8 month (102160/ ha) than Co 86032, leading to more number of millable cane (84349 /ha). It also produced lengthier canes (198 cm), higher cane yield (59.8t /ha) and sugar yield (6.77 t /ha). Among the eight organic and inorganic fertilizers tried, revised NPK schedule of 300 : ...
The Government of India and other organizations has conducted many development projects to help f... more The Government of India and other organizations has conducted many development projects to help farmers for their progress and growth. Though there are multiple intervention programmes for development, the socio-economic growth of the farmers is stagnating. Hence the question arises whether the knowledge transfer is successful. Most of the programmes use communication tools such as cyber kiosks and telecentres, generally using modern technology. There is skepticism whether farmers really find it convenient accessing such modern information and communication technologies. The Review of Literature suggested location-specific study on the appropriate communication tool which is necessary for effective intervention that would pave the way for a sustainable development and also revealed that the bottom-up approach of technological development is needed for farmers ’development. Attitude schedule method was used to study 120 farmers. Respondents were selected through stratified random sam...
A hydroponical experiment was conducted to assess salt stress responses of sugarcane (Saccharum o... more A hydroponical experiment was conducted to assess salt stress responses of sugarcane (Saccharum officinarum L.) var. CoC 671 and CoC 24 to evaluate the possible interaction of various level of salinity (0,150, 200 mM NaCl) and its impact on growth parameters viz., shoot length, root length, root volume, leaf area and also the physiological parameters viz., chlorophyll content, cell membrane stability, relative water content, nitrate reductase activity, proline content and catalase. With increase in NaCl concentration of the shoot, root length and leaf area decreased in both varieties CoC 671 and C0C 24 by 41%, 35.88%; 28.93%, 42.36% and 65.6%, 51.8% respectively, when compared to control. Total chlorophyll, cell membrane stability, relative water content and nitrate reductase activity also decreased drastic all under NaCl stress than control. The antioxidant enzyme catalase and the amino acid proline content were found to be increase in CoC 671 and CoC 24 than control. In this study...
Biometric and physiological attributes of sugarcane variety CoC (Sc) 24 in ratoon crop under wate... more Biometric and physiological attributes of sugarcane variety CoC (Sc) 24 in ratoon crop under water-logging stress condition was investigated at Sugarcane Research Station, Cuddalore, Tamil Nadu Agriculture University, Coimbatore during November 2014. Various morphological attributes were recorded in sugarcane variety CoC(Sc) 24 growing in water-logged and normal condition. Data were collected on plant height and stalk diameter, which shows decreased result by 7.22% and 16.38%, respectively. Leaf growth parameters viz., LAI, leaf production and specific leaf weight of 7.69%, 5.76% and 8.53%, respectively and the values were statistically increase over control. Mean value of all the growth and quality parameters are furnished in many unfavourable deviations were observed in most of the morphological traits when the cane was grown under waterlogging condition. But considerable improvement was observed in number of nodes (14.8%); internodal length (17.65%); nodes carrying roots (42.86%)...
International Journal of Plant & Soil Science, 2021
A soil resource inventory was conducted at village level in the Melur block of Madurai district, ... more A soil resource inventory was conducted at village level in the Melur block of Madurai district, Tamil Nadu to assess the micronutrients status in the soils and to prepare fertility maps depicting the extent of soil micronutrient deficiency/sufficiency using GIS and GPS techniques. Soil samples were collected at revenue village wise along with geo coordinates and analysed for available micronutrients such as Zn, Fe, Cu and Mn by adopting standard procedures. Based on the nutrient status, the soils were grouped as deficient or sufficient using the critical limits. Per cent deficiency of micronutrients in Melur block was worked out and the thematic maps showing status of different available micronutrients were generated. The results indicated that, Fe and Zn deficiency is most prevalent in the soils of Melur block in Madurai district to an extent of more than 35 per cent, followed by Cu (1.1%) and Mn (10%).
International Journal of Plant & Soil Science, 2021
Groundnut is an important crop cultivated all over world owing to its versatile nature of adaptat... more Groundnut is an important crop cultivated all over world owing to its versatile nature of adaptation to different agro-climatic and soil conditions. In India groundnut gains momentum as an edible oil and India next to food grain. Nutritionally groundnut contains 50 % oil, 25-30 % protein, 20% carbohydrate and 5%fiber. The productivity is lower due to different factors among which nutrient management especially boron that plays pivot role in governing the growth, yield and quality of groundnut. Boron plays various role in the physiological processes of plants, such as cell elongation, cell maturation, meristematic tissue development and protein synthesis, cellular membrane function, reproductive structures and anti- oxidative defence system. It induces flowering, fertilization, hormonal metabolism and translocation of sugars from source to sink. Extensive investigations of research on boron levels were critically reviewed. Application of boron at 10-15 kg ha-1 of soil application and...
Journal of Applied and Natural Science, Mar 19, 2023
Sustainable crop production in coastal areas of arid and semi-arid regions is a daunting task due... more Sustainable crop production in coastal areas of arid and semi-arid regions is a daunting task due to extreme climatic variability, land and water degradation, and heterogeneous soil fertility (Yadav, 2003; Moharana et al., 2019). In India, land degradation affects nearly 120.72 million hectares (Mha), with soil salinity affecting 5.50 million hectares (Mha) (Anonymous, 2020). The country loses 16.84 million tons of agricultural production annually, worth US$ 3.1 billion on these SAS (Sharma et al., 2015). Soil and water salinity stress in
Indian journal of agricultural research, Apr 11, 2022
Background: Soil fertility is a significant natural property which decides the health and quality... more Background: Soil fertility is a significant natural property which decides the health and quality of land resources. Pulse productivity diminishes nowadays under rain fed condition due to improper nutrient management practices. Hence the present study was carried out to assess the soil fertility status under major pulses growing area by using advanced geo statistical tool with ArcGIS. M ethods: Soil survey was taken in 14 revenue villages in Melur block, Madurai district. Soil samples were col lected and analysed for its nutrient properties. The Parker's Nutrient Index and soil fertility maps were prepared by using ArcGIS. Result: Pulses growing soils were mostly neutral in pH and soluble salt content was low. The organic carbon and available nitrogen content was low to medium. The available phosphorus and potassium status were medium to hig h. Hence proper nutrient management practices are to be needed for augment pulse production in such area.
Soil texture is a vital variable that reflects a number of soil properties such as Bulk Density, ... more Soil texture is a vital variable that reflects a number of soil properties such as Bulk Density, Particle Density, Infiltration Rate, Hydraulic conductivity, Water holding capacity, nutrient storage and availability as well as transport and binding and stability of soil aggregates. For better tuber development in cassava soil texture plays vital role. The main objective of this study is to produce kriged maps (Ordinary kriging map and semivariogram) to interpolate the soil texture for Tapioca growing soils of Paramthy block, Namakkal District at unsampled locations. In this study, nearly 54 surface samples were collected covering 19,149 ha of agriculture land with dominant cultivation of Tapioca. This study helps spatial interpolation of unsampled location of soil texture i.e. sand, silt and clay content which rules the soil physical, chemical and hydrological properties. The average standard error for sand and clay are 0.2 and 0.19 respectively. The results such as provided maps a...
Silicon is an important beneficial element for improving the photosynthetic efficiency and stress... more Silicon is an important beneficial element for improving the photosynthetic efficiency and stress alleviation in crops. Phytoliths are silicon body accumulated in plant parts (plant stone) through bio-mineralization process and there is a significant positive correlation between Si content and phytolith content of crop materials including the leaves, stems and sheaths. A field experiment was focused on the effect of Soil Test Crop Response based fertilizers with silicon sources on growth, yield attributes and phytolith content of Maize hybrid Co 6 at Arasanur, Sivagangai district, Tamil Nadu under Typic Rhodustalf soil during 2021. The results showed that application of Soil Test Crop Response based N, P2O5, K2O + calcium silicate @ 400 kg ha-1 and potassium silicate @ 1% foliar spray at knee high stage (25th Days After Sowing) and vegetative stage (45th Days After Sowing) performed well in enhancing growth and yield attributes viz., Leaf Area Index (5.95), plant height (228 cm), co...
Background: Soil fertility is a significant natural property which decides the health and quality... more Background: Soil fertility is a significant natural property which decides the health and quality of land resources. Pulse productivity diminishes nowadays under rain fed condition due to improper nutrient management practices. Hence the present study was carried out to assess the soil fertility status under major pulses growing area by using advanced geo statistical tool with ArcGIS. Methods: Soil survey was taken in 14 revenue villages in Melur block, Madurai district. Soil samples were collected and analysed for its nutrient properties. The Parker’s Nutrient Index and soil fertility maps were prepared by using ArcGIS. Result: Pulses growing soils were mostly neutral in pH and soluble salt content was low. The organic carbon and available nitrogen content was low to medium. The available phosphorus and potassium status were medium to high. Hence proper nutrient management practices are to be needed for augment pulse production in such area.
The experiment was carried out in Cassava growing tract of Paramathy velur block, Namakkal distri... more The experiment was carried out in Cassava growing tract of Paramathy velur block, Namakkal district, Tamil Nadu to evaluate the suitability of soil for cassava production. Detailed soil survey was carried out using cadastral map as base map of 1: 50,000 to identify the morphological, physical, chemical and exchangeable properties of soils and climatic parameters like moisture and temperature regimes. The classification was done up to subgroup level by following the guidelines of USDA soil taxonomy (soil survey staff, 2006). The study area falls under ustic moisture, isohyperthermic temperature regime. Pedons P1, P4 and P5 were classified as Typic Calciusterts, P3 called as Typic Duriustepts, P2 as Typic Haplustalfs whereas P6 named as Typic Plinthustalfs. Based on the analytical data, the evaluation was carried out with baseline of NBSS & LUP suitability criteria guideline for cassava, reported that P1 and P2 were considered to be highly suitable (S1) soils for cassava production, P3 and P4 falls under moderately suitable (S2) category, P5 is not suitable (N1) for tapioca cultivation whereas P6 is Marginally suitable (S3) for cassava production.
Biochar has been recently proposed as a management strategy to improve crop productivity and glob... more Biochar has been recently proposed as a management strategy to improve crop productivity and global warming mitigation. Biochar may be added to soils with the goal to improve the soil properties and relocate an amount of conventional fossil fuel based fertilizers and sequester carbon. Biochar production and incorporation in soil must play a role in climate change mitigation. The need for further clarity on optimizing biochar application to various crop yields is necessary if it is to gain widespread acceptance as a soil amendment. There is urgent need to intensify agricultural production to secure food supply for the ever increasing population especially in developing country like India of the tropics. Biochar proponents have placed on biochar stability in soil and it also includes increased soil fertility and water holding capacity, increased crop production and remediation of contaminated soils. The biochar have potential to feasibly and sustainably sequester/offset over 1 Pg of C...
In Madurai North taluk, Madurai district, TamilNadu , India from Alagar hill's toe slope near Aya... more In Madurai North taluk, Madurai district, TamilNadu , India from Alagar hill's toe slope near Ayathampatty to Vaigai river's alluvial fan near Vandiyur, ten different soil profile sites were fixed approximately at 2 km intervals and 2 pedons in each site were dug up to 50 m apart, examined and morphological properties were described. The data revealed that the development of pedon in different lands is as follows. The sites 1, 2 and 3 fall under foot hill 4, 5 and 6 are distributed in basin position, while the sites 7 and 8 occupy basin rim position and the sites 9 and 10 are in alluvial fan. The solum depth is a function of slope generally. The reddish colour is dominant in upper topography up to basin position. But the alluvial fan position soil is pale yellow to olive. Based on the soil properties, the pedon development in the transect follows the order: Basin> upper terrace > basin rim > lower terrace > foot hill > alluvial fan. The morphological details reveal that the solum depth increases with decreasing elevation from foot hill to alluvial fan position
A field experiment was conducted to evaluate the efficacy of different chemicals on improved spro... more A field experiment was conducted to evaluate the efficacy of different chemicals on improved sprouting of sugarcane bud chips. The study consisted of nine treatments (T 1-Untreated check, T 2-Foliar spray of 1%Urea in 15 th and 25 th day after planting, T 3-Foliar spray of marco and micronutrients solution weekly twice from 10 th DAP to 25 th DAP, T 4-Soaking of bud chips in 10% Seaweed extract for 2 hrs, T 5-T 3 + Soaking of bud chips in 0.01% Ethrel for 2 hrs, T 6-T 3 + Soaking of bud chips in 0.01% Ethrel and 0.1% Calcium chloride for 2 hrs, T 7-Soaking of bud chips in 20% Seaweed extract for 2 hrs, T 8-Soaking of bud chips in 0.01% Ethrel for 2 hrs, T 9-T 3 + Soaking of bud chips in 0.1% Calcium chloride for 2 hrs). In this study, CoC 24 variety was selected and three replications laid out in randomized block design. Significant variation in morphophysiological characters viz., survival percentage, leaf area, seedling vigour index, shoot length and root length was observed with different chemical treatments. Application of foliar spray of micro and macronutrient solution in weekly twice to each portray seedlings from 10 th DAP to 25 th DAP + soaking of bud chips in 0.01% etherl and 0.1% calcium chloride for 2 hrs registered significantly maximum mean values of growth parameters in plant and ratoon crop viz., tiller population, millable cane, cane length, cane girth, single cane weight and number of nodes. The same treatment significantly registered the maximum cane yield and sugar yield.
The pedological characterization of alluvial tract soils of Vaigai river basin, Madurai District,... more The pedological characterization of alluvial tract soils of Vaigai river basin, Madurai District, Tamil Nadu was taken during 2019-20. Initially a Reconnaissance Soil Survey was carried out with Toposheet as a base map. Totally nine representative pedons in Northernand Southern bank of the Vaigai river alluvial basin were selected and studied for their morphological characteristics. Along the course of Vaigai river basin, deposition of alluvial soil was evidenced by the poorly developed AC profiles in both side. The depth of the soil varied from d4 to d5 in both banks. The color of the pedons varies with hue ranging from 10YR to 7.5YR, value 2 to 6and chroma 2- 8 and in Northern bank ; from 10YR to 7.5YR,values varies by 2.5 to 6 and chroma by 1 to 6 in the Southern bank. The texture of soil varied from weak to structure less. Some yellowish brown mottles with jarosite were foundin the Northern bank and micaceous coatings found in the Southern banks. The calcium carbonate nodules we...
Soil is an important source of human life and agricultural production. Studying on the pedon and ... more Soil is an important source of human life and agricultural production. Studying on the pedon and its site characteristics pave the way for understanding the nature of soils and its utility. A study on pedological characterization of soils in Melur block, Madurai District (Tamil Nadu), was carried out during 2019-2020 using grid sampling with village map/cadastral maps. Soil mapping unit-based soil samples were collected in Chunampoor, Thuvarangulam, Poonjuthi and Veppapadupu and pedons were characterized as per the standard procedure. The results showed that soils were moderately deep to very deep in nature, ranging from 2.5 YR 3/6 to 10YR 4/6. The soil texture varied from sandy clay loam to sandy clay with weak to moderate sub-angular blocky structure. The consistency of soil varied from slightly hard to very hard when dry, very friable to firm when moist, slightly sticky to very sticky and slightly plastic to very plastic in wet condition. The crops viz., paddy, sugarcane, banana...
The distinguishing characteristic of saline soils contains sufficient neutral soluble salts to ad... more The distinguishing characteristic of saline soils contains sufficient neutral soluble salts to adversely affect the growth of most of the crop plants. Saline soils are those which have an electrical conductivity of more than 4 dS/m at 25 °C. Different ways of saline soil reclamation practices were followed to alleviate the saline soil problem and the practices encompasses namely, scraping, flushing and leaching, agronomic practices, crop rotation, selected crop cultivation, different irrigation practices, drainage of soil, gypsum application and biological methods of saline soil removal by applying manures, green manures and bulky organic manures, etc.
Field experiment was conducted at Sugarcane Research Station (Tamil Nadu Agricultural University)... more Field experiment was conducted at Sugarcane Research Station (Tamil Nadu Agricultural University), Cuddalore to assess the feasibility of various organic modules for sustainable sugarcane production with two varieties viz., CoC (SC) 23 and Co86032 under eight different organic sources and inorganic fertilizers. The results showed that between the two varieties studied, CoC (SC) 23 (V1) recorded higher germination (77.2%), root length (37.7cm) and wide spread (18.1cm) roots, more number of tillers (122161/ha), higher leaf area (206 cm /leaf), lower specific leaf area (85 cm/g) and higher relative water content (77%) irrespective of the treatments. The variety CoC (SC) 23 also produced more number of shoots on 8 month (102160/ ha) than Co 86032, leading to more number of millable cane (84349 /ha). It also produced lengthier canes (198 cm), higher cane yield (59.8t /ha) and sugar yield (6.77 t /ha). Among the eight organic and inorganic fertilizers tried, revised NPK schedule of 300 : ...
The Government of India and other organizations has conducted many development projects to help f... more The Government of India and other organizations has conducted many development projects to help farmers for their progress and growth. Though there are multiple intervention programmes for development, the socio-economic growth of the farmers is stagnating. Hence the question arises whether the knowledge transfer is successful. Most of the programmes use communication tools such as cyber kiosks and telecentres, generally using modern technology. There is skepticism whether farmers really find it convenient accessing such modern information and communication technologies. The Review of Literature suggested location-specific study on the appropriate communication tool which is necessary for effective intervention that would pave the way for a sustainable development and also revealed that the bottom-up approach of technological development is needed for farmers ’development. Attitude schedule method was used to study 120 farmers. Respondents were selected through stratified random sam...
A hydroponical experiment was conducted to assess salt stress responses of sugarcane (Saccharum o... more A hydroponical experiment was conducted to assess salt stress responses of sugarcane (Saccharum officinarum L.) var. CoC 671 and CoC 24 to evaluate the possible interaction of various level of salinity (0,150, 200 mM NaCl) and its impact on growth parameters viz., shoot length, root length, root volume, leaf area and also the physiological parameters viz., chlorophyll content, cell membrane stability, relative water content, nitrate reductase activity, proline content and catalase. With increase in NaCl concentration of the shoot, root length and leaf area decreased in both varieties CoC 671 and C0C 24 by 41%, 35.88%; 28.93%, 42.36% and 65.6%, 51.8% respectively, when compared to control. Total chlorophyll, cell membrane stability, relative water content and nitrate reductase activity also decreased drastic all under NaCl stress than control. The antioxidant enzyme catalase and the amino acid proline content were found to be increase in CoC 671 and CoC 24 than control. In this study...
Biometric and physiological attributes of sugarcane variety CoC (Sc) 24 in ratoon crop under wate... more Biometric and physiological attributes of sugarcane variety CoC (Sc) 24 in ratoon crop under water-logging stress condition was investigated at Sugarcane Research Station, Cuddalore, Tamil Nadu Agriculture University, Coimbatore during November 2014. Various morphological attributes were recorded in sugarcane variety CoC(Sc) 24 growing in water-logged and normal condition. Data were collected on plant height and stalk diameter, which shows decreased result by 7.22% and 16.38%, respectively. Leaf growth parameters viz., LAI, leaf production and specific leaf weight of 7.69%, 5.76% and 8.53%, respectively and the values were statistically increase over control. Mean value of all the growth and quality parameters are furnished in many unfavourable deviations were observed in most of the morphological traits when the cane was grown under waterlogging condition. But considerable improvement was observed in number of nodes (14.8%); internodal length (17.65%); nodes carrying roots (42.86%)...
International Journal of Plant & Soil Science, 2021
A soil resource inventory was conducted at village level in the Melur block of Madurai district, ... more A soil resource inventory was conducted at village level in the Melur block of Madurai district, Tamil Nadu to assess the micronutrients status in the soils and to prepare fertility maps depicting the extent of soil micronutrient deficiency/sufficiency using GIS and GPS techniques. Soil samples were collected at revenue village wise along with geo coordinates and analysed for available micronutrients such as Zn, Fe, Cu and Mn by adopting standard procedures. Based on the nutrient status, the soils were grouped as deficient or sufficient using the critical limits. Per cent deficiency of micronutrients in Melur block was worked out and the thematic maps showing status of different available micronutrients were generated. The results indicated that, Fe and Zn deficiency is most prevalent in the soils of Melur block in Madurai district to an extent of more than 35 per cent, followed by Cu (1.1%) and Mn (10%).
International Journal of Plant & Soil Science, 2021
Groundnut is an important crop cultivated all over world owing to its versatile nature of adaptat... more Groundnut is an important crop cultivated all over world owing to its versatile nature of adaptation to different agro-climatic and soil conditions. In India groundnut gains momentum as an edible oil and India next to food grain. Nutritionally groundnut contains 50 % oil, 25-30 % protein, 20% carbohydrate and 5%fiber. The productivity is lower due to different factors among which nutrient management especially boron that plays pivot role in governing the growth, yield and quality of groundnut. Boron plays various role in the physiological processes of plants, such as cell elongation, cell maturation, meristematic tissue development and protein synthesis, cellular membrane function, reproductive structures and anti- oxidative defence system. It induces flowering, fertilization, hormonal metabolism and translocation of sugars from source to sink. Extensive investigations of research on boron levels were critically reviewed. Application of boron at 10-15 kg ha-1 of soil application and...
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