Method for wholly and directly returning corn straw into field

A technology for corn stalks and stalks, which is applied to the field of returning the full amount of corn stalks to the field, can solve the problems of long period of decomposition and transformation, difficulty in decomposing corn stalks, and difficulty in being used as a fertilizer source for seasonal crops, and achieves good synergistic effect and adaptability. The external environment has strong ability and the effect of reducing the time of decomposing

Inactive Publication Date: 2017-10-03
朱玲芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem that corn stalks are difficult to be decomposed by microorganisms in the natural state due to the high C / N of corn stalks in the prior art, and the temperature in northern areas is low, so it is difficult to decompose corn stalks, which leads to corn stalks being returned to the field. It takes a long time to be decomposed and transformed in the soil, and it is difficult to use it as a fertilizer source for crops in the current season.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for returning all corn stalks to the field on the spot, the steps are as follows:

[0036] (1) After the corn is harvested, collect the stalks and crush them into 10cm segments while they are green;

[0037] (2) Digging a cellar in the harvested corn field, the length of the cellar is 2m, the width is 2m, and the depth is 1m, and the excavated soil is used for later use;

[0038] (3) Put the straw code treated in step (1) into the cellar, and dilute the biological agent with 10 times the weight of water 24 hours in advance (it is beneficial to restore and enhance the vitality and activity of the bacteria, and improve the efficiency of the decomposing agent to decompose the straw) to obtain Dilute the activation solution, add the diluted activation solution according to 25% of the weight of the straw, mix evenly, ferment at room temperature, check the temperature of the fermented product during the fermentation process, when the temperature rises above 60°C, turn ...

Embodiment 2

[0054] A method for returning full amount of straw to the field on the spot, the steps are as follows:

[0055] (1) After the corn is harvested, collect the stalks and crush them into 20cm segments while they are green;

[0056] (2) dig a cellar in the harvested corn field, the length of the cellar is 3m, the width is 3m, and the depth is 2m, and the excavated soil is used for later use;

[0057] (3) Put the straw yards processed in step (1) into the cellar, and dilute the biological agent with 10 times of water 24 hours in advance (it is beneficial to restore and enhance the vitality and activity of the bacteria, and improve the efficiency of the decomposing agent to decompose the straw) to obtain the dilution Activation solution, add diluted activation solution according to 30% of the straw weight, mix well, ferment at room temperature, check the temperature of the fermented product during the fermentation process, when the temperature rises above 60°C, turn the mixed materi...

Embodiment 3

[0072] Example 3: Effects of returning crop straws to the plow layer soil

[0073] The method of returning corn stalks to the field in Example 1-2 is used to improve soil fertility. When the corn stalks are mechanically returned to the field, the application rate of corn stalks is 300kg / mu, and the plow layer soil before the test and after 1 year of the test is collected respectively, and analyzed. The basic physical and chemical values, the specific results are shown in Table 1:

[0074]

[0075] It can be seen from Table 1 that after adopting the method of returning corn stalks to the field in Example 1-2, the physical and chemical properties of the soil have been greatly changed. Soil bulk density increases soil porosity. However, when corn stalks are returned to the field mechanically, the increments of nitrogen and phosphorus elements in the soil after the rotten straws are smaller than those in Example 1 and Examples, because the nitrogen and phosphorus elemen...

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Abstract

The invention provides a method for wholly and directly returning corn straw into field. The method comprises the following steps: (1) collecting straw after corns are harvested and smashing the straw; (2) digging a cellar in harvested corn field; (3) putting the straw treated in the step (1) into the cellar and adding a biological agent to ferment under normal temperature to obtain a fermented product; (4) adding livestock excrement and plant ash according a weight ratio of the fermented product to the livestock excrement to the plant ash as 10 to 3 to 1, evenly mixing, covering with standby soil and fermenting for 10d to obtain a straw fermented organic fertilizer which is used for being returned to field. The method disclosed by the invention effectively solves the problems of tight crop rotation caused by wholly and directly returning the straw to field between double cropping, difficulty in cuttage sowing of next-stubble crops, nitrogen battle between seedlings and straw decomposition, yellowing, seedling weakness and the like; the straw can be returned to field directly; the method can be widely applied to returning crop straw to field.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and relates to a method for returning all corn stalks to the field on the spot. The method returns the corn stalks to the field when they are fully decomposed, and the method is easy to implement and easy to operate. Background technique [0002] Chinese farmers have a long history of using crop stalks, but due to the low level of agricultural production and low output in the past, the amount of stalks was small. Except for a small amount of straw used for gaskets, feeding livestock, and some used for composting, most of the straw was used as fuel. Lost. With the development of agricultural production, since the 1980s, China's grain output has increased significantly, and the amount of straw has also increased. In addition, the promotion of firewood-saving and coal-saving technologies, the popularization of coal burning and the use of liquefied petroleum gas have resulted in a large amou...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
CPCC05D1/00C05G3/80C05D9/00C05F3/00C05F11/00C05F11/02C05F11/08C05F17/50
Inventor 朱玲芳
Owner 朱玲芳
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