Ammonium polyphosphate water-soluble fertilizer suitable for synergism in greenhouse vegetable zone and preparation method thereof

A technology of ammonium polyphosphate and water-soluble fertilizer, which is applied to ammonium orthophosphate fertilizers, fertilization methods, alkaline orthophosphate fertilizers, etc., can solve problems such as being unable to be absorbed by roots, difficult to move phosphorus, and easy to be fixed and invalidated, etc., to achieve Improve the utilization rate of rainwater, prevent soil crusting, and inhibit the effect of water evaporation

Inactive Publication Date: 2018-09-11
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that a large amount of phosphorus applied with water is not easy to move in the soil, cannot be absorbed by the root system, and is easily fixed and invalid
In order to meet the needs of vegetables and product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] In terms of weight percentage, mix 4% polyacrylamide, 2% low molecular organic acid, 1% polyamino acid, and the balance is ammonium polyphosphate to obtain a finished product;

[0022] The synergistic fertilizer is applied to the greenhouse vegetable area at 4kg / mu during the first, second, and third tomato fruit swelling period, according to fertilizer: water = 1kg: 300kg, after dissolving in water, it is pumped into the pipeline for 5 times. Flush to fertilize.

Example Embodiment

[0023] Example 2

[0024] In terms of weight percentage, mix 4% polyacrylamide, 2% low molecular organic acid, 1% polyamino acid, and the balance is ammonium polyphosphate to obtain a finished product;

[0025] The synergistic fertilizer is applied to the greenhouse vegetable area at 5kg / mu during the fruit expansion period of the first, second, and third ears of eggplant, according to fertilizer: water = 1kg: 400kg, after dissolving in water, it is pumped into the pipeline three times. Flush to fertilize.

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PUM

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Abstract

The invention relates to the field of chemical fertilizers and particularly relates to an ammonium polyphosphate water-soluble fertilizer suitable for synergism in greenhouse vegetable zone and a preparation method thereof. The fertilizer is composed of polyacrylamide, low-molecular organic acids, polyamino acid, and ammonium polyphosphate according to the weight percentages of: 4-6% of the polyacrylamide, 1-3% of the low-molecular organic acids, 0.5-1.5% of the polyamino acid and the balanced being ammonium polyphosphate. When being applied to a vegetable field, the fertilizer can solve problems that phosphorus is difficult to move and a surface-applied water-soluble fertilizer cannot be absorbed by root systems of the plants. On the basis of a macro-molecule carrying function, the phosphorus can move in soil, so that immobilization of the phosphorus fertilizer by metal ions in alkali soil is effectively prevented, and activities of nitrogen and phosphorus are improved. The fertilizeraccelerates growth of vegetables, improves quality, can preserve water and fertility and is free of environment pollution.

Description

technical field [0001] The invention relates to the field of chemical fertilizers, in particular to an ammonium polyphosphate water-soluble fertilizer suitable for increasing efficiency in greenhouse vegetable areas and a preparation method thereof. Background technique [0002] In recent years, agricultural water-soluble fertilizers have developed rapidly. Compared with ordinary fertilizers, water-soluble fertilizers have many advantages such as saving labor, saving water resources, and being convenient to use. As a new type of water-soluble fertilizer raw material, ammonium polyphosphate has the advantages of high solubility, safety and high efficiency, and chelating effect on metal trace elements. After hydrolysis, it can provide both orthophosphate phosphorus and ammonium nitrogen. However, there is a problem that a large amount of phosphorus applied with water is not easy to move in the soil, cannot be absorbed by the root system, and is easily fixed and invalid. In or...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04A01C21/00C05G3/80
CPCA01C21/005C05B7/00C05G3/00C05G3/80C05C11/00C05F11/00
Inventor 李杰石元亮王玲莉魏占波李忠
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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