Preparation method of liquid water-soluble fertilizer

A water-soluble fertilizer technology, applied in liquid fertilizers, organic fertilizers, nitrate fertilizers, etc., can solve problems such as the inability to improve soil caking, the inability to supplement medium and trace elements at the same time, and the inability to improve crop stress resistance. , to achieve the effects of improving product quality, increasing yield, and preventing soil agglomeration

Inactive Publication Date: 2017-11-24
AMB NANJING BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing commercially available water-soluble fertilizers have the advantages of easy absorption and high-efficiency supplementation of nutrient elements, but they cannot supplement the medium and trace elements at the same time, cannot improve the soil caking phenomenon, and cannot improve the stress resistance of crops

Method used

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  • Preparation method of liquid water-soluble fertilizer

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Experimental program
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Effect test

Embodiment 1

[0019] A kind of preparation method of liquid water-soluble fertilizer, described preparation method comprises the following steps:

[0020] Step 1. Weigh 40 parts by mass of calcium nitrate and add it to 50 parts by mass of water, fully stirring until fully dissolved;

[0021] Step 2. Add 2 parts by mass of copper sulfate, 1 part by mass of magnesium nitrate, 3 parts by mass of zinc sulfate, 2 parts by mass of ferrous sulfate monohydrate, 12 parts by mass of dodecylbenzenesulfonic acid in the calcium nitrate solution prepared in step 1 Sodium and 2 parts by mass of cross-linked polyvinylpyrrolidone, stirred at 60°C for 15 minutes;

[0022] Step 3. Use a metering pump to pump the stirred mixture prepared in Step 2 into the reactor, add 0.5 parts by mass of 2-hydroxypropane-1,2,3-tricarboxylate iron while stirring, and stir at 80°C 30min, then cool down to 52°C, keep warm for 6h, after the reaction is over, cool down to room temperature for later use;

[0023] Step 4. The mat...

Embodiment 2

[0025] A kind of preparation method of liquid water-soluble fertilizer, described preparation method comprises the following steps:

[0026] Step 1. Take 55 parts by mass of calcium nitrate and add it to 60 parts by mass of water, and stir until completely dissolved;

[0027] Step 2. Add 5 parts by mass of copper sulfate, 3 parts by mass of magnesium nitrate, 5 parts by mass of zinc sulfate, 4 parts by mass of ferrous sulfate monohydrate, 15 parts by mass of tetradecylbenzenesulfonic acid in the calcium nitrate solution prepared in step 1 Sodium and 4 parts by mass of cross-linked polyvinylpyrrolidone, stirred at a temperature of 70° C. for 20 minutes;

[0028] Step 3. Use a metering pump to pump the stirred mixture prepared in Step 2 into the reactor, add 2.5 parts by mass of 2-hydroxypropane-1,2,3-tricarboxylate iron while stirring, and stir at 90°C 45min, then cool down to 55°C, keep warm for 7h, cool down to room temperature after the reaction is over;

[0029] Step 4. S...

Embodiment 3

[0031] A kind of preparation method of liquid water-soluble fertilizer, described preparation method comprises the following steps:

[0032] Step 1. Take 50 parts by mass of calcium nitrate and add it to 55 parts by mass of water, and stir until completely dissolved;

[0033] Step 2. Add 3.5 parts by mass of copper sulfate, 2 parts by mass of magnesium nitrate, 4 parts by mass of zinc sulfate, 3 parts by mass of ferrous sulfate monohydrate, 13 parts by mass of surfactant and 3 parts by mass of calcium nitrate solution prepared in step 1. Cross-linked polyvinylpyrrolidone, stirred at 65°C for 18min;

[0034] Step 3. Use a metering pump to pump the stirred mixture prepared in Step 2 into the reactor, add 2 parts by mass of 2-hydroxypropane-1,2,3-tricarboxylate iron while stirring, and stir at 85°C 35min, then cool down to 54°C, keep warm for 6h, after the reaction, cool down to room temperature for later use;

[0035] Step 4. The material cooled to room temperature in the reac...

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Abstract

A preparation method of a liquid water-soluble fertilizer belongs to the technical field of water-soluble fertilizers. The preparation method comprises the following steps: Step 1, weighing calcium nitrate and adding calcium nitrate into water, fully stirring until calcium nitrate is completely dissolved; Step 2, adding copper sulfate, magnesium nitrate, zinc sulfate, ferrous sulfate monohydrate, a surfactant and cross-linked polyvinylpyrrolidone into the calcium nitrate solution prepared in the Step 1, heating and uniformly stirring; Step 3, pumping a mixture prepared by stirring in the Step 2 into a reaction vessel by the use of a metering pump, adding 2-hydroxypropane-1,2,3-iron tricarboxylate while stirring, reacting and cooling to room temperature for later use; and Step 4, sending the material which has been cooled to room temperature in the reaction vessel into a magnetizer, letting the magnetized material flow from an outlet of the magnetizer into a storage tank, and packaging so as to finally complete preparation of the liquid water-soluble fertilizer. The water-soluble fertilizer prepared by the method can help increase yield, improve quality of products, loosen and improve soil, prevent and control soil hardening and raise stress resistance of crops.

Description

technical field [0001] The invention belongs to the technical field of water-soluble fertilizers, and in particular relates to a preparation method of liquid water-soluble fertilizers. Background technique [0002] In 2012, the People’s Republic of China’s Medium Element Water-Soluble Fertilizer Agricultural Industry Standard (NY2266-2012) issued by the Ministry of Agriculture clearly defined: “Water-soluble fertilizers are dissolved or diluted in water and used for irrigation and fertilization, foliar fertilization, soilless cultivation, and soaking seeds. Liquid or solid fertilizers for root dipping, etc." There are various fertilization methods for water-soluble fertilizers. At present, there are mainly methods of irrigation and fertilization, foliar fertilization, soilless cultivation, and seed soaking. These fertilization methods have greatly improved the absorption rate of water-soluble fertilizers by crops. For example, foliar fertilization can directly spray nutrien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05C5/00C05G3/00C05G3/80C05G5/23C05D9/02C05F11/00C05C5/04
Inventor 张高荣
Owner AMB NANJING BIOTECH CO LTD
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