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Preparation method of self-nutrition microbial agent for straw/branch returning to field

A microbial inoculum and branch technology, applied in the field of agricultural waste fertilization, can solve the problems of dust flying, environmental pollution, poor straw/twig returning effect, etc., and achieve the effect of enhancing the ability to adapt to the environment and increasing the content

Pending Publication Date: 2021-12-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a straw / branch that can effectively solve the poor effect of straw / twig returning to the field, dust flying when the microbial agent is thrown, causing environmental pollution and lung infection of the throwing personnel. Preparation method of self-contained nutrient microbial bacterial agent for return to field

Method used

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Examples

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Effect test

preparation example Construction

[0022] This embodiment provides a method for preparing a self-contained nutritional microbial bacterial agent for returning straw / twigs to the field, including the following steps:

[0023] Step 1, selection of microbial inoculum; by comparing the soil sprayed with different microbial inoculants on the straw / branch decomposition rate within a preset time after the straw / branch is returned to the field, the straw / branch decomposition rate is selected. Highest microbial inoculant;

[0024] Specifically, the following methods can be used:

[0025] Step 1.1: Divide a field into several small fields and apply nitrogen fertilizer so that the mass ratio of straw / branches to the total carbon and nitrogen in the soil after returning to the field is (25-30):1, and then 1 kg per mu The proportion of microbial inoculants, spraying different microbial inoculants in each small field; and then returning to the field with a returning machine, using rotary tillage / deep tillage / subsoiling no-t...

Embodiment 1

[0035] This embodiment provides a method for preparing a self-contained nutritional microbial bacterial agent for returning straw / twigs to the field, including the following steps:

[0036] Step 1, the selection of microbial inoculum; the specific method is: a field is divided into several small fields, and livestock and poultry manure is applied, so that the total carbon and nitrogen element mass ratio of straw / twigs and soil in the field after straw / twigs are ( 25~30): 1, and then according to the ratio of 1kg of microbial inoculum per mu, spray different microbial inoculants on each small field; Sowing was carried out by plowing method; then, according to the "S" shape sampling method, 5 experimental points of "10cm × 10cm" were delineated in each small field, and the upper 5cm deep soil of each experimental point was taken out with a spatula, and put into the pre-prepared Put them in a good plastic bag, take them back to the laboratory, sieve them one by one with a sample ...

Embodiment 2

[0042] This embodiment provides a method for preparing a self-contained nutritional microbial bacterial agent for returning straw / twigs to the field, including the following steps:

[0043] Step 1, the selection of microbial agents; the specific method is: divide the 20-30 mu field into 20-30 blocks, each block is 1 mu, apply urea, and return the straw / twigs to the field. The mass ratio to the total carbon and nitrogen in the soil is (25-30): 1, and then spray different microbial agents in each block according to the ratio of 1kg of microbial agents per mu; For returning to the field, the seeds were sown by rotary tillage / deep tillage / subsoiling and no-tillage; then according to the "S" shape sampling method, 5 "10cm×10cm" experimental points were delineated in each block, and each plot was taken out with a spatula. Put the 5cm deep soil in the upper part of each experimental point into a pre-prepared plastic bag, take it back to the laboratory, and sieve it one by one with a ...

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Abstract

The invention discloses a preparation method of a self-nutrient microbial agent for straw / branch returning to field. The preparation method comprises the following steps: step 1, selection of a microbial agent; step 2, activating the microbial agent; step 3, nutrition enrichment; and step 4, drying. According to the invention, a carbon source and a nitrogen source which can be directly utilized by microorganisms are granulated together with the microorganisms, so that the nutrition problem when the microbial agent is returned to the field at first is solved, namely, the microorganisms can survive by utilizing nutrient substances carried by the microorganisms at the early stage of returning to the field; and in thesurviving process, cellulose, hemicellulose and lignin in the straw / branch are degraded into glucose and pentose by using enzyme generated by self metabolism, vitamins and mineral elements are released, and then the cellulose, hemicellulose and lignin in the straw / branch are continuously hydrolyzed by using the glucose and the pentose as nutrition, so that the straw / branch fertilizing process is accelerated.

Description

technical field [0001] The invention relates to the technology of fertilizing agricultural waste, in particular to a preparation method of a self-contained nutritional microbial bacterial agent used for returning straw / twigs to the field. Background technique [0002] Straw / branch returning technology has been practiced in our country for many years and is recognized all over the world as a method of fertilizing soil. In most places in my country, returning to the field is convenient for harvesting (saving trouble), and the issue of straw fertilizer is not considered, resulting in poor returning effect. For example, stubble is too high, straw bands appear, the carbon-to-nitrogen ratio is too high, no microbial agent is applied or the microbial agent does not bring nutrition, and the mortality rate is high. [0003] Although soil is a stronghold for microbes, the number of microbes in the soil has been greatly reduced due to the application of chemical fertilizers. In order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/20C05F11/00
CPCC05F17/20C05F11/00Y02W30/40
Inventor 李祥王永平柯希恒曾桥褚春年王耀凤
Owner SHAANXI UNIV OF SCI & TECH
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