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Multifunctional compound fertilizer additive and preparation method thereof

A compound fertilizer and additive technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of poor water retention and water saving functions of compound fertilizers, achieve long-term effectiveness and effectiveness, increase crop yield, and promote crop growth. The effect of growth

Inactive Publication Date: 2010-07-14
GANSU AGRI MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the selection performance and dosage of water retaining agent, etc., the water retention and water saving function of compound fertilizer is very poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh ZnSO 4 ·7H 2 O: 50kg, FeSO 4 ·7H 2 O: 100kg, MnSO 4 ·H 2 O: 50kg, CuSO 4 ·5H 2 O: 50kg, Na 2 B 4 o 7 10H 2 O: 50kg, (NH 4 ) 2 MoO 4 : 25kg, NiSO 4 ·7H 2 O: 10kg, TiCl 3 : 10kg, CoCl 2 2H 2 O: 20kg, Ce(NO 3 ) 3 ·6H 2 O: 50kg, La(NO 3 ) 3 ·6H 2 O: 50kg.

[0042] Add 3500L of compound amino acid solution with a concentration of 190g / L to 200g / L into a 6000L enamel reaction kettle with a stirrer, heat to 50°C with steam, turn on the stirrer, and slowly add the above-mentioned weighed materials in sequence until the materials are completely dissolved Afterwards, raise the temperature to 100°C to 110°C, keep the liquid in the enamel reaction kettle boiling, and react for 4 hours. Spray the solution in the enamel reaction kettle on 3000kg of peat, lignite or weathered coal powder while it is hot, stir while spraying, spray as evenly as possible, air dry or dry, and pulverize to obtain material A.

[0043] Note: The compound amino acid solution c...

Embodiment 2

[0045] Take by weighing dicyandiamide (DCD) 5kg and be dissolved in 20L agricultural ammonia water to obtain dicyandiamide ammonia aqueous solution, the NH in agricultural ammonia water 3 ≥15wt%. Weigh 150 kg of carboxymethyl cellulose with a particle size of 80 to 100 mesh.

[0046] Spray the dicyandiamide ammonia solution evenly on the carboxymethyl cellulose, stir while spraying, spray as evenly as possible, air-dry or dry, and pulverize to obtain material B.

Embodiment 3

[0048] Weigh 15 kg of cobalt sulfide and molybdenum sulfide mixture with particle size not greater than 100 mesh, and the mass ratio of cobalt sulfide to molybdenum sulfide is 1:1.

[0049] Weigh 50 kg of bean cake powder or corn starch with a particle size not greater than 60 mesh.

[0050] Mix the above two raw materials evenly to obtain material C.

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Abstract

The invention discloses a multifunctional compound fertilizer additive and a preparation method thereof. The preparation method comprises the following steps: uniformly spraying a compound amino acid complex solution of trace elements containing Fe, B, Mn, Cu, Zn and Mo, rare earth elements containing Ce and La and beneficial mineral elements containing Ni, Co and Ti on grass carbon, brown coal or weathered coal powder, airing or drying, and then crushing to obtain a material A; preparing dicyandiamide used as a nitrification inhibitor into an ammonia solution to be adsorbed on carboxymethyl cellulose used as a water retention agent, airing or drying, and then crushing to obtain a material B; mixing cobalt sulfide and molybdenum sulfide which are used as nitrogen fixation catalysts with bean cakes or corn starch to obtain a material C; and uniformly mixing the material A, the material B and the material C to obtain the additive. The multifunctional compound fertilizer added with the additive of the invention has the advantages of fixing nitrogen, dissolving phosphorus, enriching soil, reducing nutrient loss, improving nutrient utilization ratio, improving crop enzyme activity, promoting metabolism, improving crop quality, increasing crop yield, retaining water, saving water, resisting drought, regulating buffering acidity or saline-alkali soil, and improving soil structure.

Description

technical field [0001] The invention belongs to the technical field of fertilizer additives, in particular to a multifunctional compound fertilizer additive and a preparation method thereof. Background technique [0002] At present, there are many brands of multifunctional compound fertilizers produced in China, but the actual use functions are not satisfactory, and some functions have almost no functions. There are many reasons for this result. In order to make the compound fertilizer multifunctional, the methods and measures currently adopted include: adding urease inhibitors and nitrification inhibitors to inhibit the hydrolysis of NH4 by urea + and NH4 + Nitrification, prolonging the fertilizer effect period of nitrogen fertilizer. Because the prices of the two inhibitors are high, the amount of addition is insufficient, and the inhibition is limited. In addition, the two inhibitors are also lost with rainwater or due to soil desertification, just like nitrogen fertil...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 郭联铭王俊义陈参军
Owner GANSU AGRI MATERIALS
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