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Method for interplanting leguminous green manure crops in wheat field to culture soil nitrogen pool

A legume green manure and wheat field technology, applied in fertilization methods, legume plant cultivation, grain cultivation, etc., can solve problems such as imperfections, soil erosion, climate resources and land waste

Inactive Publication Date: 2018-11-06
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, except for a small number of crops with a short growth period such as multiple crops in these areas, most of the land is in a bare and idle state, resulting in a huge waste of climate resources and land, which may lead to soil erosion and environmental pollution such as sandstorms
Existing research on cultivating soil nitrogen pools by interplanting leguminous green manure crops in wheat fields has not been perfected yet, and no mature technical means have been formed.

Method used

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  • Method for interplanting leguminous green manure crops in wheat field to culture soil nitrogen pool

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The 9-year long-term positioning experiment of wheat green manure was selected in Ererlipu, Chengbei District, Xining City, Qinghai Province, Qinghai Academy of Agricultural Sciences. The selected leguminous green manure crop species is Potatoes pubescens.

[0031] (1) Interplanting of green manure crops: 20 days before wheat harvest, that is, in the middle and late July of each year, the seeds of green manure crops, vetch, are sown; among them, the seeding rate of leguminous green manure is 8 kg / mu;

[0032] (2) Irrigation: Sprinkle the leguminous green manure seeds of the vetch, and then irrigate once, and the irrigation volume is 30m 3 ;

[0033] (3) Harvesting of spring wheat: Harvest the spring wheat 20 days after sowing the leguminous green manure. The stubble height of the harvested wheat is 25 cm, which not only increases the amount of straw returned to the field, but also supports the root of the green manure to prevent it from rotting ;

[0034] (4) Irrigat...

Embodiment 2

[0039] The 9-year long-term positioning experiment of wheat green manure was selected in Ererlipu, Chengbei District, Xining City, Qinghai Province. The selected leguminous green manure crop species is Potatoes pubescens.

[0040](1) Interplanting of green manure crops: 15 days before wheat harvest, that is, in mid-July every year, the seeds of green manure crops, vetch, are sown; among them, the seeding rate of leguminous green manure is 7.5 kg / mu;

[0041] (2) Irrigation: Sprinkle the leguminous green manure seeds of the vetch, and then irrigate once, and the irrigation volume is 20m 3 ;

[0042] (3) Harvesting of spring wheat: Harvest the spring wheat 15 days after sowing the leguminous green manure. The stubble height of the wheat is 20cm when harvesting, which not only increases the amount of straw returning to the field, but also supports the root of the green manure to prevent it from rotting;

[0043] (4) Irrigation: Irrigate once after harvesting the wheat, and the ...

Embodiment 3

[0048] The wheat green manure test base in Wajia Village, Hexi Town, Guide County, Qinghai Province was selected. The selected leguminous green manure crop species is arrowhead pea.

[0049] (1) Interplanting of green manure crops: 17 days before wheat harvest, that is, in the middle and late July of each year, sow green manure crop seeds Arrowhead pea; among them, the seeding rate of leguminous green manure Arrowhead pea is 10 kg / mu;

[0050] (2) Irrigation: Sprinkle the leguminous green manure seeds Arrowhead pea, and then irrigate once, and the irrigation volume is 25m 3 ;

[0051] (3) Harvesting of spring wheat: Harvest the spring wheat 17 days after sowing the leguminous green manure. The stubble height of the wheat is 22cm when harvesting, which not only increases the amount of straw returned to the field, but also supports the root of the green manure to prevent it from rotting;

[0052] (4) Irrigation: Irrigate once after harvesting the wheat, and the irrigation volu...

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Abstract

The invention relates to the technical field of soil fertilization, in particular to a method for interplanting leguminous green manure crops in wheat field to culture a soil nitrogen pool. The methodcomprises the six specific steps of interplanting of the leguminous green manure crops, irrigation, spring wheat harvesting, irrigation, harvesting of the leguminous green manure crops and sowing ofspring wheat in the next year. The method has the advantages that a fertilizer is saved by 20-30%; labor and time are saved during sowing; mutualistic symbiosis between the interplanting crops is achieved; the organic matter of soil is improved by 7-12%, total nitrogen is improved by 2.54-3.56%, nitrate nitrogen is reduced by 7.01-38.51%, ammonium nitrogen is improved by 0.94-19.28%, microbial nitrogen is improved by 10.22-24.67%, and organic nitrogen is improved by 12.43-23.65%; dissolved organic nitrogen is improved by 10.56-15.43%; particulate organic nitrogen is improved by 10.12-21.76%.

Description

technical field [0001] The invention relates to the technical field of soil fertilization, in particular to a method for cultivating soil nitrogen pools by interplanting leguminous green manure crops in wheat fields. Background technique [0002] In recent years, my country's grain production has achieved "twelve consecutive increases". However, while grain production has increased year after year, my country's cultivated land resources and environment are facing multiple challenges. The high-intensity use of cultivated land, long-term high-load operation, lack of recuperation, serious overdraft of soil fertility, quality degradation, and pollution are particularly prominent, which seriously restricts the sustainable development of my country's agriculture. At the same time, domestic grain stocks have increased significantly, and the burden of storage subsidies is heavy. Coupled with the decline in grain prices in the international market, the price of grain in the domestic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/20A01G22/40A01C21/00
CPCA01C21/005A01G22/20A01G22/40
Inventor 韩梅胥婷婷李正鹏曹卫东张礼绽自珍
Owner QINGHAI UNIVERSITY
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