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Saline-alkali soil crop straw double-layer returning improvement method

A technology of crop stalks and saline-alkali land, applied in soil preparation methods, agriculture, agricultural machinery and tools, etc., can solve the problems of plastic film covering environmental pollution, unfavorable ecological stability and long-term development, and achieve the effect of reducing salt damage and ensuring normal growth

Inactive Publication Date: 2018-09-07
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because plastic film covering is easy to cause environmental pollution, it is not conducive to ecological stability and long-term development

Method used

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  • Saline-alkali soil crop straw double-layer returning improvement method
  • Saline-alkali soil crop straw double-layer returning improvement method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] In this embodiment, 80 mu of moderate saline-alkali land in Huibang Bohai Farm, Lijin County, Dongying City, Shandong Province is used as the test field:

[0029] An improved method for double-layer returning wheat straw to the field in saline-alkali land, comprising the following steps:

[0030] Step 1. Crush and sterilize the harvested wheat straw; wherein the crushed length of the straw is 2 cm, spray the straw fungicide on the surface of the crushed straw with a spray device, the dosage of the straw fungicide is 1.0 Kg / mu, and place 1 day;

[0031] Step 2, spreading 1 / 2 of the total amount of crushed straw on the field surface;

[0032] Step 3. Bury the above-mentioned pulverized straw into the ground 35 cm;

[0033] Step 4: Spread the remaining crushed straw on the field surface in Step 2 and bury it 5 cm underground.

[0034] The bactericide can be selected according to different types. In this embodiment, carbendazim is selected and diluted 1000 times.

Embodiment 2

[0036] In this embodiment, 80 mu of moderate saline-alkali land in Huibang Bohai Farm, Lijin County, Dongying City, Shandong Province is used as the test field:

[0037] An improved method for double-layer returning wheat straw to the field in saline-alkali land, comprising the following steps:

[0038] Step 1. Crush and sterilize the harvested wheat straw; wherein the crushed length of the straw is 2 cm, spray the straw fungicide on the surface of the crushed straw with a spray device, the dosage of the straw fungicide is 1.0 Kg / mu, and place 1 day;

[0039] Step 2, spreading 2 / 3 of the above crushed straw on the field surface;

[0040] Step 3. Bury the above-mentioned pulverized straw into the ground 38 cm;

[0041] Step 4. Spread the remaining crushed straw on the field surface in Step 2 and bury it 8 cm underground.

[0042] The bactericide can be selected according to different types. In this embodiment, carbendazim is selected and diluted 1000 times.

Embodiment 3

[0044] In this embodiment, 80 mu of moderate saline-alkali land in Huibang Bohai Farm, Lijin County, Dongying City, Shandong Province is used as the test field:

[0045] An improved method for double-layer returning wheat straw to the field in saline-alkali land, comprising the following steps:

[0046] Step 1. Grinding and sterilizing the harvested wheat straw; wherein the crushed length of the straw is 3 cm, spraying the straw fungicide on the surface of the crushed straw with a spray device, the dosage of the straw fungicide is 1.2 Kg / mu, and placing 1 day;

[0047] Step 2, spreading 2 / 3 of the above crushed straw on the field surface;

[0048] Step 3, bury the above-mentioned pulverized straw 40 cm underground;

[0049] Step 4. Spread the remaining crushed straw on the field surface in Step 2 and bury it 10 cm underground.

[0050] The bactericide can be selected according to different types. In this embodiment, carbendazim is selected and diluted 1000 times.

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Abstract

The invention relates to a saline-alkali soil crop straw double-layer returning improvement method. The saline-alkali soil crop straw double-layer returning improvement method comprises the followingsteps: step 1, crushing and sterilizing harvested crop straws; step 2, uniformly spreading the crushed straws on the surface of the field, wherein the amount is smaller than the total amount of the crushed straws; step 3, turning the uniformly spread crushed straw into the underground; step 4, uniformly spreading the crushed straw remaining in the step 2 on the surface of the field and turning thecrushed straw into the underground. According to the invention, the accumulation of salt in the ground surface is inhibited, the saline-alkali soil is improved, and the salt damage to crops is reduced; the nutrient substances of the straws are sufficiently returned to the soil, and the soil quality is further improved.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for improving saline-alkali land by double-layer returning crop straws to the field. Background technique [0002] Soil salinization is an important factor that threatens the sustainable development of agriculture and the stability of ecosystems. Soil salinization has a negative impact on crop production and soil physical, chemical, and biological properties, which will seriously affect crop production and development, resulting in a significant reduction in yield. [0003] Crop straw is a very important bio-fertilizer resource in my country. Returning straw to the field has obvious effects on maintaining and improving soil fertility, structure and physical and chemical properties, and plays an important role in maintaining high crop yield. There have been many reports on the use of straw to improve saline-alkali land, which plays an important role in improving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 宋希亮陈为峰董元杰王曼华李贤红
Owner SHANDONG AGRICULTURAL UNIVERSITY
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