Marine organisms material imitating prepared synergist of chemical fertilizer

A chemical fertilizer synergist and marine biological technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of high cost, large dosage, and insignificant long-term effects, and achieve the goal of promoting dissolution and absorption, improving quality, and optimizing soil physics. Effects of structure and microbial structure

Inactive Publication Date: 2004-06-09
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of these patents are that they are used in a large amount in specific use, the cost is high, and they can only be used in solid form, and the long-term effect is not obvious.

Method used

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  • Marine organisms material imitating prepared synergist of chemical fertilizer
  • Marine organisms material imitating prepared synergist of chemical fertilizer
  • Marine organisms material imitating prepared synergist of chemical fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: 50 kg of potassium polyaspartate and 50 kg of chitosan were fully mixed to obtain a solid fertilizer synergist.

Embodiment 2

[0012] Example 2: 50 kg of sodium polyaspartate and 25 kg of chitosan were fully mixed to obtain a solid fertilizer synergist.

Embodiment 3

[0013] Example 3: 5 kilograms of potassium polyaspartate and 1 kilogram of carboxymethyl chitosan were thoroughly mixed and dissolved in 100 kilograms of water to obtain a liquid fertilizer synergist.

[0014] The polyaspartic acid metal salts in this embodiment can be sodium salts, potassium salts, etc.; the chitosan derivatives are carboxymethyl chitosan and the like.

[0015] Taking the product of embodiment 1 as an example, the use effect is as follows:

[0016] The effect test of chemical fertilizer synergist was carried out in Anqiu Modern Agriculture Demonstration Park to verify the effect of this fertilizer synergist on the absorption of soil nutrient elements and the activity of crop enzymes. The experimental crops were Suzhou rapeseed and cucumber. According to the dosage of solid fertilizer synergist 0kg / mu (ie control group), 0.5kg / mu, 1.0kg / mu, 1.5kg / mu, 2.0kg / mu five treatments, each test plot 33.3m2, repeated three times, Test soil available nitrogen (RL-1A so...

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Abstract

The present invention relates to a chemical fertilizer synergist made of imitation marine biological material, and it is characterized by that said synergist contains polyaspartate and chitosan or its derivative, and the weight ratio of both them is 1:0.1-10. Its formula is simple, it can safely make bio-degration, and has no pollution, and can be used for imporving soil structure, raising yield of crops and improving quality of crops.

Description

technical field [0001] The invention relates to a chemical fertilizer additive, in particular to a chemical fertilizer synergist prepared by imitating marine biological materials. Background technique [0002] my country is not only a big country in fertilizer production, but also a big country in fertilizer use. The increase of agricultural production and income is inseparable from chemical fertilizers. From 1984 to the present, the consumption of chemical fertilizers in my country has doubled from more than 17 million tons to more than 35 million tons, but the increase in grain production is only about 10%. The diminishing returns on fertilizers are prominent. The utilization rate of chemical fertilizers in my country is only about 30%, while that in developed countries is 40-50%. Every year, more than 10 million tons of chemical fertilizers in my country do not play a role, which not only causes waste, increases agricultural investment, and increases costs, but also ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 姜国良张广华牛世奎刘云刘中华杨栋
Owner OCEAN UNIV OF CHINA
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