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Macroelement solid water-soluble fertilizer and preparation method thereof

A technology with a large amount of elements and solid water, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of large market application limitations, complex process, high product price, etc., to achieve convenient storage and transportation, simple production process, Fast dissolving effect

Active Publication Date: 2014-04-09
QINGDAO SOBEL CROP NUTRITION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water-soluble fertilizer synthesized by chemical reaction has good appearance, uniform particle size and color, good solubility and absorption rate, but the process is complicated and the product is expensive, which is not easy to be accepted by farmers, and the market application is limited

Method used

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  • Macroelement solid water-soluble fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1. The components and ratios of macroelement solid water-soluble fertilizers are as follows, all in percentages by weight:

[0035] Urea 34%, potassium nitrate 13%, ammonium phosphate 16%, dipotassium hydrogen phosphate 18%, boric acid 2%, magnesium sulfate 2%, zinc sulfate 1.5%. 0.5% copper sulfate, 1% manganese sulfate, 6% amino acid powder, 4% high-efficiency dispersant, 2% co-solvent, and the proportion of each group of high-efficiency dispersant is: polystyrene sulfonate : Dimethyldienyl ammonium chloride : Sulfomethyl polyacrylamide : Polyoxyethylene-propylene oxide block copolymer=1:1:1:1, co-solvent is polyvinylpyrrolidone.

[0036] The preparation method is as follows:

[0037] Add amino acid powder with a weight percentage of 5%~10% into a high-speed mixer, then add dilute sulfuric acid accounting for 5%~10% of amino acid powder, and carry out surface treatment on the amino acid powder at a speed of 100r / min. Put the amino acid powder into th...

Embodiment example 2

[0039] Implementation case 2. As described in embodiment case 1, its difference is that each raw material component is as follows, is weight percent:

[0040] Urea 30%, potassium nitrate 15%, ammonium phosphate 12%, dipotassium hydrogen phosphate 18%, boric acid 3%, magnesium sulfate 2%, zinc sulfate 1.5%. 0.5% copper sulfate, 1% manganese sulfate, 5% amino acid powder, 5% high-efficiency dispersant, 2% co-solvent, and the composition ratio of high-efficiency dispersant is: polystyrene sulfonate : Dimethyldienyl ammonium chloride : Sulfomethyl polyacrylamide : Polyoxyethylene-propylene oxide block copolymer=1:1:1:2, co-solvent is polyvinylpyrrolidone.

Embodiment example 3

[0041] Implementation case 3. As described in embodiment case 1, its difference is that each raw material component is as follows, is weight percent:

[0042] Urea 35%, potassium nitrate 12%, ammonium phosphate 14%, dipotassium hydrogen phosphate 14%, boric acid 4%, magnesium sulfate 2%, zinc sulfate 1.5%. Copper sulfate 0.5%, manganese sulfate 1%, amino acid powder 8%, high-efficiency dispersant 6%, co-solvent 2%, and the composition ratio of high-efficiency dispersant is: polystyrene sulfonate : Dimethyldienyl ammonium chloride : Sulfomethyl polyacrylamide : Polyoxyethylene-propylene oxide block copolymer=2:1:1:2, co-solvent is polyvinylpyrrolidone.

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Abstract

The invention discloses a macroelement solid water-soluble fertilizer, belongs to the field of a crop fertilizer, and particularly relates to a nanoscale solid water-soluble fertilizer. The water-soluble fertilizer comprises the following components by ratio: 25-35% of urea, 10-15% of potassium nitrate, 10-18% of ammonium phosphate (phosphoric acid), 10-20% of dipotassium phosphate, 2-4% of boric acid, 1-3% of magnesium sulfate, 1-3% of zinc sulfate, 0.5-2% of copper sulfate, 0.5-2% of manganese sulfate, 5-10% of amino acid powder, 4-8% of highly efficient dispersant and 1-3% of cosolvent. The preparation method of the water-soluble fertilizer comprises the following steps: firstly, mixing and preprocessing the amino acid powder by using a little of dilute sulphuric acid; fully mixing the processed amino acid powder with the other components; adding the highly efficient dispersant and the cosolvent; carrying out ultrafine treatment on the solid by using a micron-grade crusher through ultrasonic air flow until the particle size is smaller than or equal to 2 microns, and meanwhile, the surface of the water-soluble fertilizer is modified, so that the targets of rapidly dissolving and improving the soil are achieved, and full absorption and effective utilization of macroelements and microelements are facilitated. Therefore, the macroelement solid water-soluble fertilizer is applied to kinds of crops.

Description

technical field [0001] The invention belongs to the field of fertilizers for crops, more precisely, it is a micron-sized granular macroelement solid water-soluble fertilizer. Background technique [0002] Water-soluble fertilizer is a multi-component compound fertilizer that can be dissolved in water. It can be quickly dissolved in water and is more easily absorbed by crops. It also has a relatively high absorption and utilization rate, realizes the integration of water and fertilizer, and saves water, fertilizer and labor. It is a new type of fertilizer that has emerged in recent years. Generally speaking, water-soluble fertilizers can contain all the nutrients needed for crop growth, such as nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and trace elements. Most of the nutrients needed by crops need to be provided by chemical fertilizers, but there is a phenomenon of more nitrogen, less phosphorus, and less potassium in chemical fertilizers in my country. Mor...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 陈庆张芝媛
Owner QINGDAO SOBEL CROP NUTRITION
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