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Composite enzyme preparation and preparation method thereof, method and application of promoting plant nitrogen and phosphorus absorption

A compound enzyme preparation and phosphorus absorption technology, which is applied in the agricultural field, can solve the problems of reducing soil phosphorus adsorption, soil phosphorus leakage and leaching, and reducing nutrient utilization rate, etc., to promote the production of disease-resistant substances, promote absorption, The effect of promoting crop growth and quality improvement

Active Publication Date: 2021-12-21
SHANDONG ANALYSIS & TEST CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive application of phosphorus fertilizer for a long time can lead to a large amount of phosphorus accumulation in the vegetable soil, which reduces the utilization rate of nutrients, not only causes waste of fertilizer, but also makes most of phosphorus exist in the soil for a long time in the form of Ca-P, Al-P, Fe-P, O-P, etc. , making the soil texture coarser
Not only that, long-term application of organic fertilizers will lead to a decrease in the adsorption of phosphorus in the soil. When the phosphorus element reaches saturation in the soil, it will lead to soil phosphorus leakage and leaching, and enter the surface water, resulting in eutrophication of the water body.

Method used

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  • Composite enzyme preparation and preparation method thereof, method and application of promoting plant nitrogen and phosphorus absorption
  • Composite enzyme preparation and preparation method thereof, method and application of promoting plant nitrogen and phosphorus absorption
  • Composite enzyme preparation and preparation method thereof, method and application of promoting plant nitrogen and phosphorus absorption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This example provides a compound enzyme preparation for promoting plant nitrogen and phosphorus uptake, the enzyme activity ratio of chitinase and cellulase in the compound enzyme preparation is 1:16, wherein the concentration of chitinase used It is 0.02U per kilogram of soil, and the concentration of cellulase is 0.32U per kilogram of soil. The preparation method of the compound enzyme preparation provided in this example is: use chitinase at a concentration of 0.2 U / mg and cellulase at a concentration of 0.8 U / mg, and mix them uniformly at a mass ratio of 1:4. When in use, 0.5 mg of compound enzyme preparation is applied per kilogram of soil to achieve 0.02U of chitinase and 0.32U of cellulase per kilogram of soil.

Embodiment 2

[0053] This example provides a compound enzyme preparation for promoting plant nitrogen and phosphorus uptake, the enzyme activity ratio of chitinase and cellulase in the compound enzyme preparation is 1:16, wherein the concentration of chitinase used It is 0.04U per kilogram of soil, and the concentration of cellulase is 0.64U per kilogram of soil. The preparation method of the compound enzyme preparation provided in this example is: use chitinase at a concentration of 0.2 U / mg and cellulase at a concentration of 0.8 U / mg, and mix them uniformly at a mass ratio of 2:8. When in use, 1 mg of compound enzyme preparation is applied per kilogram of soil to achieve 0.04U of chitinase and 0.64U of cellulase per kilogram of soil.

Embodiment 3

[0055] This example provides a compound enzyme preparation for promoting plant nitrogen and phosphorus uptake, the enzyme activity ratio of chitinase and cellulase in the compound enzyme preparation is 1:36, wherein the concentration of chitinase used It is 0.02U per kilogram of soil, and the concentration of cellulase is 0.72U per kilogram of soil. The preparation method of the compound enzyme preparation provided in this example is: use chitinase at a concentration of 0.2 U / mg and cellulase at a concentration of 0.8 U / mg, and mix them uniformly at a mass ratio of 1:9. When in use, 1 mg of compound enzyme preparation is applied per kilogram of soil to achieve 0.02U of chitinase and 0.72U of cellulase per kilogram of soil.

[0056] Effect example

[0057] Using blank control, simple cellulase (the amount of cellulase used is 1 mg / kg, and the enzyme activity is 0.8 U / mg, so the amount of cellulase used in the simple cellulase group is 0.8 U / kg), simple chitinase (the amount o...

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Abstract

The invention provides a compound enzyme preparation and a preparation method thereof, a method and application for promoting plant nitrogen and phosphorus absorption, and relates to the field of agricultural technology. The compound enzyme preparation provided by the invention includes chitinase and cellulase, wherein the enzyme activity ratio of chitinase and cellulase is 1:(16-36). The composite enzyme preparation realizes the absorption and utilization of soil nitrogen and phosphorus by plants through the rational use of chitinase and cellulase, enhances the photosynthesis of plants, promotes the healthy growth of plant fruits, and does not cause soil damage. Pollution; also has the characteristics of simple production and operation process and strong applicability, can promote plant growth and quality improvement, is safe and efficient, and can obtain significant social and economic benefits.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a compound enzyme preparation and a preparation method thereof, a method and application for promoting plant nitrogen and phosphorus absorption. Background technique [0002] In recent years, large-scale use of chemical fertilizers has been used to maximize land output, ignoring the consumption of soil organic matter and changes in physical and chemical properties caused by the application of chemical fertilizers. Excessive application of nitrogen fertilizers in vegetable fields will lead to the accumulation of nitrogen in the soil. With the increase of planting years, the accumulation of nitrogen will increase. The main form is nitrate nitrogen. Excessive accumulation of nitrate will cause soil compaction. Excessive application of phosphorus fertilizer for a long time can lead to a large amount of phosphorus accumulation in the vegetable soil, which reduces the utilization...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N9/42A01N63/50A01P21/00
CPCC12N9/2442C12Y302/01014C12N9/2437A01N63/00
Inventor 马春霞尹西翔王利红李明君张战朝韩术鑫栾玲玉
Owner SHANDONG ANALYSIS & TEST CENT
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