CN1178877C - Process for preparing concentrated multi-element compound liquid fertilizer - Google Patents
Process for preparing concentrated multi-element compound liquid fertilizer Download PDFInfo
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- CN1178877C CN1178877C CNB011288477A CN01128847A CN1178877C CN 1178877 C CN1178877 C CN 1178877C CN B011288477 A CNB011288477 A CN B011288477A CN 01128847 A CN01128847 A CN 01128847A CN 1178877 C CN1178877 C CN 1178877C
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Abstract
The present invention discloses a method for preparing concentrated multielement compound liquid fertilizer. The present invention is completed by the following operational steps that after raw materials with potassium are dissolved by hot water, partial glucose is added; calcium and magnesium raw materials are sufficiently dissolved by adding water; potassium salt solution is uniformly mixed with calcium and magnesium solution, and partial urea, phosphoric acid and surplus urea are orderly added; then, additives of microelements and trace elements are respectively added, and are sufficiently and uniformly stirred; finally, the rest surplus glucose and a chelating agent are added to prepared the high concentrated multielement compound liquid fertilizer through stirring and natural combination. The present invention has simple technology, and the concentration of nutritional ingredients in the concentrated multielement compound liquid fertilizer can be arbitrarily regulated and controlled; products can be stored for a long time without the phenomenon of crystallization; the application range of liquid fertilizer is greatly improved; the growth requirements of plants in all the life can be met from base fertilizer to top dressing, and the concentrated multielement compound liquid fertilizer can be used by mixing with other fertilizer and pesticide.
Description
One, technical field:
The invention belongs to the chemical fertilizers production technical field, be specifically related to a kind ofly can adjust nutritive element concentration in the liquid polyhydric composite fertilizer, the preparation method of the concentrated multi-element compound liquid fertilizer that technology is easy arbitrarily.
Two, background technology:
China is a large agricultural country, and Yunnan belongs to the province, subtropics, is again a province, borderland in the face of Southeast Asian countries, and the farmland cash crop are wide in variety, and cultivated area is wide.The peasant applies fertilizer throughout the year, mainly based on solid fertilizer.Fertilizer carries inconvenience in the mountain area, and the single fertilising of content is unreasonable, imbalance.The pollution of people's living environment, particularly water system is also constantly attacked in the pollution of environment, and is bigger to the growth harm of farm crop.The solid fertilizer of generally using at present has fertilizer remnants over half, with bringing water system into and staying the field contaminated land with current in various degree.Because the water capacity relatively poor (major part is no more than 50%) of solid fertilizer and the property strengthened such as cultivate at multiple factor, caused the soil organisms chain destroyed, nutritive element is unbalance in a large amount of farmlands, the hardening soil, soil fertility descends, cause soil to become barren all the more, the dependency of external fertilizer is strengthened day by day.Cause fruit quality to descend, the ability of disease and insect resistance reduces, and the high yield good harvest is difficult to extravagant hope.In order to solve the problems that solid fertilizer exists, vast scientific worker has developed liquid polyhydric composite fertilizer.But because the defective of self on production method or the technology, the content of the needed element N of farm crop, P, K, particularly K can not be controlled arbitrarily, and often the content of K surpasses at 12% o'clock, crystallization will occur, has had a strong impact on the scope of using and the fertilizer efficiency of fertilizer.And the characteristics of the soil of China, generally low potassium, and in the process of growth of farm crop, particularly the middle and later periods needs a large amount of potassium especially.Need K at 17-24% as banana; N is 6-7%; P is 13-15%.
Therefore, have no alternative but to use solid fertilizer, limited the use of liquid fertilizer.The inventor is through concentrating on studies for many years, develop a kind of concentrated multi-element compound liquid fertilizer preparation method, overcome the deficiency of existing production technique, improved the solubility rate of nutritive element, enlarged the scope of using of liquid fertilizer greatly, all can use this liquid fertilizer in the whole process of plant-growth.Evidence, the inventive method is easy, and the concentrating of nutrients can be adjusted arbitrarily in the liquid composite fertilizer, and fertilizer stores non-crystallizable for a long time, does not influence application effect.
Three, the content of innovation and creation
1, the technical problem that will solve
The object of the present invention is to provide and a kind ofly can adjust nutritive element concentration in the liquid composite fertilizer arbitrarily, and the preparation method of the easy concentrated multi-element compound liquid fertilizer of technology.
2, technical scheme
The present invention is achieved in that by urea, phosphoric acid, sylvite, calcic magnesium raw material, the conventional trace element that uses of fertilizer, the concentrated multi-element compound liquid fertilizer of trace elements additive compound, is prepared from by following operation:
(1) sylvite is pressed with behind the hot water dissolving, be cooled to room temperature, add the glucose of 1/3-1/2 amount;
(2) calcium and magnesium oxide are added in the 3-5 water doubly, process made it abundant dissolving in 25-35 minute;
(3) with behind potassium salt soln and the calcium magnesium solution thorough mixing, after 3-5 minute, add the urea of 1/3-2/3 amount, stirring is fully dissolved urea; Add phosphoric acid again, add the urea of surplus after 5-10 minute;
(4) add conventional trace mineral supplement that uses of fertilizer and fully dissolving respectively; Add the trace elements additive again;
(5) glucose of adding surplus adds sequestrant then, after raw material mixes fully, fully stirs 30 minutes, and water transfers to the liquid measure of regulation, through 35-40 hour natural chemical combination, makes concentrated multi-element compound liquid fertilizer again.
Described sylvite is Repone K, vitriolate of tartar and saltpetre, and described calcic magnesium raw material is calcium oxide and magnesium oxide, is commercially available agricultural raw material;
The conventional trace mineral supplement that uses of described fertilizer mainly comprises the vitriol of copper, zinc, iron, manganese, Sodium orthomolybdate and borax, and borax can replace with boric acid.Described trace elements additive is the vitriol of cobalt, nickel, iodine, selenium, vanadium.The adding dosage of above-mentioned trace and trace elements is pressed the adding of agricultural fertilizer routine dose addition and is got final product.Other trace, trace elements additives commonly used can add equally, do not influence the realization of the object of the invention.
The employed water of present method should be and not contain purifying waste water of poisonous heavy metal ion, to guarantee the nontoxic of composite fertilizer, prevents toxic substance residual on farm crop.Simultaneously, in order to accelerate the dissolving of sylvite, improve the effect of removing chlorine, generally use 80-100 ℃ hot water, the ratio of sylvite and hot water is 1: 1-1: 1.4.
Add a certain amount of glucose after the sylvite dissolving in advance; allowing potassium at first mix with glucose, is the key of this processing method, and its purpose is to utilize the package action of glucose; potassium ion is protected, produce crystallization to prevent itself and other salts reactions of follow-up blended.Not only improved the strength of solution of potassium ion, and realized any adjustment of nutritive ingredient concentration in the composite fertilizer, to prepare highly enriched liquid polyhydric compound manure.
Described sequestrant is EDTA, and the sequestrant that other chemical property and the mechanism of action are identical or suitable can use equally, does not influence the realization of the object of the invention.
3, beneficial effect
Because method of the present invention adopted glucose potassium ion protection technology, reduced potassium and in subsequent handling, reacted and the crystalline possibility with other ions, make that nutritive ingredient concentration can be regulated arbitrarily in the liquid composite fertilizer.The product long-term storage the crystalline phenomenon can not occur yet, has improved the scope of using of liquid fertilizer greatly, satisfies the plant growth needs in all one's life to topdressing from base manure, can mix use with other fertilizer and agricultural chemicals yet.This liquid fertilizer can replenish the required nutritive ingredient of plant effectively, produces amino acid, and activating soil is increase soil fertility.The nutritious solubility rate height of the present invention's processing method, the characteristics, particularly potassium element of control are compared with the liquid composite fertilizer that existing method is produced arbitrarily, and the solubility rate of potassium exceeds 3-5 doubly.And the preparation method is easy, and process stabilizing is reliable.
4, embodiment
With a prescription example of liquid composite fertilizer, the present invention is further illustrated in conjunction with the embodiments, but never in any form the present invention is limited below.
With ton liquid fertilizer amount is unit, and its raw material consists of 200 kilograms in 46% urea, 210 kilograms of 85% phosphoric acid, 175 kilograms in 58% Repone K, 15 kilograms in calcium oxide, 20 kilograms in magnesium oxide, 6 kilograms of boraxs, 4 kilograms in ferrous sulfate, 2.5 kilograms in zinc sulfate, 2 kilograms of manganous sulfates, 2 kilograms in copper sulfate, 1.5 kilograms of sulfuric acid silicon, molybdic acid is received 1 kilogram, 6 kilograms of crude dextroses, EDTA5 kilogram, trace elements cobalt, nickel, iodine, selenium, alum additive dosage routinely add, and surplus is a water.
Embodiment one
175 kilograms in Repone K in 1: 1.4 the ratio purification hot water dissolving with 80 ℃ 245 kilograms, and after being cooled to room temperature, is added 2 kilograms of 1/3 glucose; The water 105 kg that calcium oxide and magnesium oxide is added 3 times is fully miscible; Potassium salt soln and calcium magnesium solution are mixed, after 70 kilograms of abundant dissolvings of the urea of adding about 1/3 after 3-5 minute, add 210 kilograms of phosphoric acid again, 130 kilograms of urea with surplus after 5-10 minute add; Add the vitriol and the borax of copper, zinc, iron, manganese, molybdenum then respectively and make it abundant dissolving; Add trace mineral supplement after 2 minutes, stir; Add 4 kilograms of remaining glucose and sequestrant EDTA5 kilogram after 5-10 minute, mix, continue to stir 30 minutes, raw material is mixed fully, after water is adjusted to the total amount of regulation,, promptly make finished product highly concentrated liquid multi-component composite fertilizer again through 40 hours natural chemical combination.Finished product is green or olive-green transparent liquid, and is nontoxic, do not have any smell, and the concentrating of nutrients is preserved non-crystallizable more than 40% for a long time.
Embodiment two
175 kilograms in Repone K in 1: 1 the ratio purification hot water dissolving with 100 ℃ 175 kilograms, and after being cooled to room temperature, is added 2 kilograms of 1/3 glucose; 175 kilograms in the water that calcium oxide is mixed 5 times of back addings with magnesium oxide is abundant miscible; Potassium salt soln and calcium magnesium solution are mixed, after 100 kilograms of abundant dissolvings of the urea of adding 1/2 after 3-5 minute, add 210 kilograms of phosphoric acid again, 100 kilograms of urea with surplus after 5-10 minute add; Subsequent handling and finished product proterties are with embodiment one.
Embodiment three
175 kilograms in Repone K in 1: 1.2 the ratio purification hot water dissolving with 90 ℃ 210 kilograms, and after being cooled to room temperature, is added 3 kilograms of 1/2 glucose; 140 kilograms in the water that calcium oxide and magnesium oxide is added 4 times is abundant miscible; Potassium salt soln and calcium magnesium solution are mixed, after 135 kilograms of abundant dissolvings of the urea of adding about 2/3 after 3-5 minute, add 210 kilograms of phosphoric acid again, 65 kilograms of urea with surplus after 5-10 minute add; Subsequent handling and finished product proterties are with embodiment one.
The test-results explanation is used in the contrast of liquid polyhydric composite fertilizer of the present invention and conventional fertilizer:
(1) pear tree (with the woods test) of family is given birth in Wei County, Hebei province, Zhang Erzhuan village orchard worker Zheng Lin, use this liquid fertilizer after, branches and leaves are luxuriant, the fruit-setting rate height, the wind shedding is few, pears are mellow and full greatly, mouthfeel is good, fresh-keeping anti-storage is not perishable.On average increase production more than 30%.
(2) cotton of Zong Kou farm, Qianjiang City, Hubei Province five another arena Tian Furong families, paddy rice (with the field test).Use conventional fertilizer: every mu spends 120 yuan, 45.6 yuan of every mu of costs of agricultural chemicals, 150 kilograms in per mu yield cotton, 450 kilograms in paddy rice.Use this liquid fertilizer: every mu spends 89 yuan, 20 yuan of every mu of costs of agricultural chemicals, 225 kilograms in per mu yield cotton, 550 kilograms in paddy rice.And cotton fiber increases one-level; Paddy rice is improved rice milling yield 8%.
More than test shows: in less investment, increase production under the high situation, use agricultural chemicals 60% less, just equal to reduce the pollution of agricultural chemicals.
(3) the big fish-farming area in Chenggong County, Yunnan Province residential district vegetable grower Lee tests from the celery of quick family: 0.3 mu of celery is used 170 yuan of conventional fertilizer costs, 250 kilograms of per mu yields, and fried bar and dish leaf blackout phenomenon are arranged.Use this liquid fertilizer cost and only need 100 yuan, output can reach 350 kilograms, do not have fried bar, and the dish leaf oil is green, and mouthfeel is good.
Flower-grower Lee tests from the flowers of merit man: use conventional fertilizer and reduce cost 1/3, the leaf look glossy dark green, and bar strip is straight and upright, do not have cured leaf and do sharp phenomenon from root to petal.And fresh keeping time is long, is convenient to transportation, prolongs full-bloom stage 7-10 days.
(4) Dali, the Yunnan Province State Scientific and Technological Commission is at tomato, little rape, and river mouth county bureau of agriculture uses the test of this liquid fertilizer on banana, pineapple, vegetables, all obtained significant effect of increasing production, and peasants are reflected fairly good.And Vietnam state peaceful economizes, Lao Jie economizes, inquire after the health of one's parents in south etc., and the test leaf of ground on farm-forestry crops such as paddy rice, vegetables, flowers, rubber all obtained comparatively satisfied effect of increasing production.
The present invention can summarize with other specific forms without prejudice to spirit of the present invention or principal character.Therefore, no matter from which point, above-mentioned embodiment of the present invention all can only be thought can not be interpreted as restriction the present invention to explanation of the present invention.Therefore, in implication suitable and any change in the scope, all should think to comprise within the scope of the claims with claims of the present invention.
Claims (4)
1, a kind of concentrated multi-element compound liquid fertilizer comprises urea, phosphoric acid, sylvite, calcium oxide, magnesium oxide, glucose, sequestrant, and conventional trace element, the trace elements additive that uses of fertilizer, and is prepared from by following operation:
A. with sylvite with the hot water dissolving after, be cooled to room temperature, add the glucose account for glucose total amount 1/3-1/2 amount, fully mixing;
The calcium oxide that B. will respectively account for gross weight 5% mixes with magnesium oxide in the water of 3-5 times of weight of back adding, stirs raw material is fully dissolved;
C. potassium salt soln and calcium magnesium solution are mixed, after 3-5 minute, add the urea that accounts for urea total amount 1/3-2/3 amount, stir, urea is fully dissolved, add the phosphoric acid thorough mixing again, then add the urea of surplus;
D. after adding trace mineral supplement respectively and making it fully dissolving, add the trace elements additive more respectively;
E. the glucose with surplus adds, and adds sequestrant then, after raw material mixes fully, fully stirs 30 minutes, and water is adjusted to the liquid fertilizer preparation amount, through 35-40 hour natural chemical combination, makes concentrated multi-element compound liquid fertilizer again.
The conventional trace mineral supplement that uses of described fertilizer mainly comprises vitriol, Sodium orthomolybdate, borax or the boric acid of copper, zinc, iron, manganese; Described trace elements additive mainly is included as the vitriol of cobalt, nickel, iodine, selenium, alum; Described trace element, trace elements additive add dosage and press the interpolation of agricultural fertilizer routine dose, and both total amounts account for the 1-3% that liquid fertilizer prepares total amount.
2, a kind of concentrated multi-element compound liquid fertilizer as claimed in claim 1 is characterized in that: the weight ratio of sylvite and hot water is 1 in the described A operation: 1-1: 1.4.
3, a kind of concentrated multi-element compound liquid fertilizer as claimed in claim 1 is characterized in that: hot water is 80-100 ℃ removal toxic heavy metal ionic purification hot water in the described A operation.
4, a kind of concentrated multi-element compound liquid fertilizer as claimed in claim 1 is characterized in that: the sequestrant in the described E operation is EDTA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011288477A CN1178877C (en) | 2001-09-13 | 2001-09-13 | Process for preparing concentrated multi-element compound liquid fertilizer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011288477A CN1178877C (en) | 2001-09-13 | 2001-09-13 | Process for preparing concentrated multi-element compound liquid fertilizer |
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| Publication Number | Publication Date |
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| CN1338447A CN1338447A (en) | 2002-03-06 |
| CN1178877C true CN1178877C (en) | 2004-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011288477A Expired - Fee Related CN1178877C (en) | 2001-09-13 | 2001-09-13 | Process for preparing concentrated multi-element compound liquid fertilizer |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311289B (en) * | 2010-07-02 | 2014-04-30 | 王祥林 | Organic water soluble fertilizer |
| CN102442855B (en) * | 2011-09-29 | 2013-06-05 | 武汉富强科技发展有限责任公司 | Preparation method of multi-element high-concentration liquid fertilizer with stable performance |
| CN102627493A (en) * | 2012-05-10 | 2012-08-08 | 杨玉 | High-concentration multi-element liquid fertilizer and preparation method thereof |
| CN103664359B (en) * | 2013-11-25 | 2015-04-08 | 华南农业大学 | High-phosphorus high-zinc liquid compound fertilizer and preparation method thereof |
| CN106278502A (en) * | 2015-05-18 | 2017-01-04 | 孙建和 | A kind of preparation method of concentrated multi-element compound liquid fertilizer |
| CN114230391A (en) * | 2021-12-02 | 2022-03-25 | 北京盛世思勰农业科技有限公司 | Multi-element water-soluble fertilizer composition |
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