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Triacontanol modified chitosan composite organic fertilizer and preparation method thereof

A technology of triacontanol and chitosan, which is applied in the direction of organic fertilizers, nitrogen fertilizers, fertilization devices, etc., can solve the problems of organic matter content and fertility reduction, adverse effects on human health, and aggravated soil compaction, so as to promote synthesis and improve Photosynthesis intensity, enhance the effect of photosynthesis

Active Publication Date: 2020-12-15
武汉禾之壮农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, long-term excessive use of chemical fertilizers will inevitably lead to various disadvantages such as soil compaction, organic matter content decline, and soil nutrient imbalance.
Traditional chemical fertilizers generally contain sulfates such as ammonium sulfate and potassium sulfate. The sulfate radicals in these sulfates are easily combined with metal ions such as calcium and magnesium in the soil to form inorganic salt precipitates such as calcium sulfate and magnesium sulfate, resulting in soil compaction. Soil compaction directly leads to the loss of various inorganic substances in the soil, the reduction of organic matter content and fertility, and the reduction of crop production.
[0003] The long-term use of chemical fertilizers has caused crops to rely on chemical fertilizers, leading to an increasing amount of chemical fertilizers, which has led to increasing soil compaction
At the same time, in order to prevent and control crop diseases and insect pests, a large amount of highly toxic pesticides are used every year, resulting in serious pesticide residues exceeding the standard, which not only caused serious damage to the ecological environment, but also brought adverse effects on human health

Method used

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  • Triacontanol modified chitosan composite organic fertilizer and preparation method thereof
  • Triacontanol modified chitosan composite organic fertilizer and preparation method thereof
  • Triacontanol modified chitosan composite organic fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Preparation of triacontanol modified chitosan compound organic fertilizer, the specific steps are as follows:

[0042] First put 37 kg of deionized water into a stainless steel reaction kettle, and heat it until the water temperature in the kettle reaches 60-65°C, and add 0.8 kg of potassium lauryl ether phosphate (purity 95wt%), stirred at constant temperature for 1-2 hours, potassium lauryl ether phosphate was dissolved completely, then slowly added 13 kilograms of triacontanol modified chitosan in the reactor, then stirred at constant temperature for 1 hour, and then poured into the reactor Add 40.2 kg of deionized water, and continue stirring at constant temperature for 1 hour until the triacontanol-modified chitosan is completely dissolved, then cool down to 30-40 ° C, and stir to the reaction at 50-60 rpm. Slowly add 9 kilograms of sodium glutamate (purity 98wt%) in the kettle, continue stirring at constant temperature for 2 hours after adding, and naturally cool ...

Embodiment 2

[0050] The antibacterial effect test of the organic fertilizer, the specific test process and results are as follows:

[0051] The organic fertilizer prepared in Example 1 is inoculated with the common pathogens (smut, Cercospora sorghum, anthracnose graminearum) of crops, and the culture medium of three kinds of pathogens (respectively glucose agar medium, chocolate agar medium) , MacConkey agar medium) was sterilized in an autoclave at 110°C for 30 minutes, and then the sterilized culture medium was placed in a petri dish with a diameter of 11 cm, and the distribution density of 100 strains per dish Insert the culture medium, drop 0.2 grams of the organic fertilizer into each dish, and do a blank control experiment with the bacteria that did not drop the organic fertilizer, first use the "cross measurement method" to measure the colony diameters of different pathogens, and then use The "indoor growth rate test method" is used to measure the bacteriostatic rate of the organic...

Embodiment 3

[0059] Preparation of triacontanol modified chitosan compound organic fertilizer, the specific steps are as follows:

[0060] First put 36 kg of deionized water into a stainless steel reaction kettle, and heat it until the water temperature in the kettle reaches 60-65°C, add 1 kg of potassium lauryl ether phosphate under stirring conditions (90-100 rpm), add Stir at constant temperature for 1-2 hours to completely dissolve potassium lauryl ether phosphate, then slowly add 14 kg of triacontanol-modified chitosan to the reaction kettle, stir at constant temperature for 1 hour after adding, and then add 39 kg of deionized water, after adding, continue to stir at constant temperature for 1 hour until the triacontanol modified chitosan is completely dissolved, then cool down to 30-40°C, and react under stirring conditions (50-60 rpm). Slowly add 10 kg of sodium glutamate to the kettle, continue stirring at a constant temperature for 2 hours after adding, and then cool down naturall...

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Abstract

The invention relates to a triacontanol modified chitosan composite organic fertilizer and a preparation method thereof. The organic fertilizer comprises the following components in percentage by mass: 12-15% of triacontanol modified chitosan, 8-10% of sodium glutamate, 0.5-1% of potassium lauryl ether phosphate and 74-80% of deionized water. The compound organic fertilizer disclosed by the invention does not generate any pollution and toxic and side effects on the environment and human bodies while improving the crop yield and preventing and treating diseases and insect pests, can remarkablyreduce the use amount of traditional chemical fertilizers and pesticides and reduce pesticide residue pollution, and can activate soil and prevent soil hardening when being used as a base fertilizer.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and relates to a triacontanol-modified chitosan compound organic fertilizer and a preparation method thereof. Background technique [0002] Fertilizer is an essential plant nutrient in agricultural production. Scientific use of fertilizer can effectively increase the yield of crops and increase farmers' production and income. However, long-term excessive use of chemical fertilizers will inevitably lead to various disadvantages such as soil compaction, organic matter content decline, and soil nutrient imbalance. Traditional chemical fertilizers generally contain sulfates such as ammonium sulfate and potassium sulfate. The sulfate radicals in these sulfates are easily combined with metal ions such as calcium and magnesium in the soil to form inorganic salt precipitates such as calcium sulfate and magnesium sulfate, resulting in soil compaction. Soil compaction directly leads to the loss of var...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/60C05G3/80
CPCC05C11/00C05G3/60C05G3/80C05F11/00
Inventor 曾德芳
Owner 武汉禾之壮农业科技有限公司
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