Sustained-dissolved type chemical fertilizer

A chemical fertilizer and slow-dissolving technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of low utilization rate, lower quality of agricultural products, and low utilization rate of chemical fertilizers, and achieve the effect of low cost and high production efficiency.

Inactive Publication Date: 2014-10-01
裴秀琴
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, there are two major problems in the use of fertilizers: one is that the amount of chemical fertilizers is large and the utilization rate is low; the other is that the unreasonable application of chemical fertilizers causes fertilizer loss and environmental pollution, and the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A slow-dissolving chemical fertilizer, comprising the following raw materials in parts by weight: 50 parts of organic fertilizer, 5 parts of alkenyl succinic anhydride starch ester, 10 parts of phosphated starch, 5 parts of cross-linked starch, and 0.1 part of nucleating agent.

[0026] The cross-linked starch is glyoxal starch.

[0027] Described nucleating agent is sodium benzoate.

Embodiment 2

[0029] A slow-dissolving chemical fertilizer, comprising the following raw materials in parts by weight: 60 parts of organic fertilizer, 15 parts of alkenyl succinic anhydride starch ester, 15 parts of phosphated starch, 10 parts of cross-linked starch, and 0.5 part of nucleating agent.

[0030] The cross-linked starch is phosphorus trichloride starch.

[0031] The nucleating agent is aluminum phenylacetate.

Embodiment 3

[0033] A slow-dissolving chemical fertilizer, comprising the following raw materials in parts by weight: 52 parts of organic fertilizer, 7 parts of alkenyl succinic anhydride starch ester, 12 parts of phosphated starch, 6 parts of cross-linked starch, and 0.2 part of nucleating agent.

[0034] The cross-linked starch is epichlorohydrin starch.

[0035] The nucleating agent is sodium adipate.

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Abstract

The invention relates to a sustained-dissolved type chemical fertilizer which comprises the following raw materials in parts by weight: 50-60 parts of organic chemical fertilizer, 5-15 parts of alkenyl succinic anhydride starch ester, 10-15 parts of phosphate esterified starch, 5-10 parts of cross-linking starch and 0.1-0.5 part of nucleating agent. Esterified starch of different substitution degrees can be selected according to plant nutrient requiring periods, the dissolution speed can be effectively controlled, and a stable controlled-release function is achieved.

Description

technical field [0001] The invention relates to a slow-dissolving chemical fertilizer. Background technique [0002] With the development of agricultural technology, chemical fertilizers play an increasingly important role in agriculture. At present, compound fertilizers, nano-fertilizers, organic fertilizers, green fertilizers, and high-efficiency fertilizers have gradually appeared. However, there are two major problems in the use of fertilizers: one is that the amount of chemical fertilizers is large and the utilization rate is low; the other is that the unreasonable application of chemical fertilizers causes fertilizer loss and environmental pollution, and the quality of agricultural products is reduced. According to relevant statistical data, the increase in food production per kilogram of chemical fertilizers in my country is less than half of the world's average level, and less than 1 / 3 of the US average level. Mainly due to the low utilization rate of chemical ferti...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 裴秀琴
Owner 裴秀琴
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