Cultivation method for intercropping of grain-harvesting corn and nurse crops in cool areas

A technology of cover crops and cultivation methods, applied in the field of intercropping of corn and cover crops, can solve the problems of non-point source pollution, soil quality decline, etc., and achieve the effects of increasing crop types, suppressing weeds, and improving field conditions

Active Publication Date: 2020-06-26
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of soil quality decline and non-point source pollution caused by the extensive use of ch...

Method used

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  • Cultivation method for intercropping of grain-harvesting corn and nurse crops in cool areas
  • Cultivation method for intercropping of grain-harvesting corn and nurse crops in cool areas
  • Cultivation method for intercropping of grain-harvesting corn and nurse crops in cool areas

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specific Embodiment approach 1

[0038] Specific embodiment one: in the present embodiment, a kind of cultivation method of intercropping corn and cover crop intercropping in the cold area carries out according to the following steps:

[0039] 1. Land preparation and ridge application of base fertilizer:

[0040] According to local agricultural production habits, spring soil preparation, rotary tillage or deep plowing shall be carried out when the temperature requirements are met, and base fertilizer shall be applied in combination with ridges. The distance between them (ridge width) is 65cm-70cm;

[0041] Second, corn sowing:

[0042] Mechanical sowing or artificial sowing can be used. The corn seeds are located in the center of the ridge, combined with corn planting, and the mouth fertilizer is applied below the side of the corn. The amount and application method of the mouth fertilizer are consistent with the local production field. The corn planting density is 65,000 plants / ha After sowing, the cross-se...

specific Embodiment approach 2

[0055] Embodiment 2: This embodiment is different from Embodiment 1 in that the annual leguminous cover plant described in Step 4 is Vetch, Trifolium or Clover. Others are the same as the first embodiment.

specific Embodiment approach 3

[0056] Embodiment 3: This embodiment is different from Embodiment 1 in that the annual leguminous cover crop described in step 5 is vetch, clover or clover. Others are the same as the first embodiment.

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Abstract

The invention belongs to the technical field of crop planting, and particularly relates to a cultivation method for intercropping of grain-harvesting corn and nurse crops in cool areas. The inventionaims to solve the technical problems of soil deterioration and non-point source pollution caused by massive use of chemical fertilizers, pesticides and herbicides in the planting process of corn. Themethod comprises the following steps: 1, soil preparation, ridging and base fertilizer application; 2, corn sowing; 3, manufacturing of a small seedbed micro terrace for nurse crops; 4, planting of the nurse crops in the small seedbed micro terrace; 5, planting of nurse crops in furrows; 6, field management; 7, corn harvesting; and 8, crushing of straws and returning of the crushed straws to a field in spring. The method disclosed by the invention gives full play to the nurse crops, reduces the use of herbicides, decreases and inhibits weeds, lowers water and soil loss, reduces and improves soil loss and the like, and can ensure that corn yield is not reduced.

Description

technical field [0001] The invention belongs to the technical field of crop planting, and in particular relates to a cultivation method for intercropping corn and cover crops. Background technique [0002] Northeast my country has four distinct seasons, with rain and heat in the same season. Spring is dry and windy, summer is hot and rainy, autumn is crisp and clear, and winter is long and cold. Suitable crops are crops that ripen once a year, such as corn. Northeast China is the main corn producing area in our country, with a large area of ​​corn planting, and it is an important commercial grain base in our country. It has made an important contribution to ensuring my country's food security. However, due to the excessive pursuit of corn production, the extensive use of chemical fertilizers, pesticides, and herbicides in the corn planting process has caused a series of problems such as soil quality decline and non-point source pollution. The solution of these problems i...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01G22/40A01G13/00
CPCA01G13/00A01G22/20A01G22/40
Inventor 李向楠刘胜群
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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