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Dry land spring corn planting method based on straw turnover

A planting method and straw technology, applied in the fields of soil preparation method, botany equipment and method, plant cultivation, etc., can solve the problems such as the decline of soil fertility, improve the soil structure, promote the vitality of microorganisms and the development of crop root system, and benefit the soil The effect of an increase in temperature

Inactive Publication Date: 2017-02-01
INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if nutrients are not replenished in time, it will lead to a decline in soil fertility.

Method used

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  • Dry land spring corn planting method based on straw turnover
  • Dry land spring corn planting method based on straw turnover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Planting spring corn on a flat ridge covered with film

[0030] Implementation location: Fumeng County, Liaoning Province (the highest altitude in the county is 831.4m, the lowest altitude is 45.8m, the annual average temperature is 7.2°C, the frost-free period is about 150 days, the annual average precipitation is about 500mm, and the precipitation from May to September is 425mm, accounting for 85% of the year).

[0031] Corn varieties: "Liaodan 1211" suitable for local resources and "Zhengdan 958" with wide adaptability.

[0032] Step1. Straw returning to the field

[0033] After harvesting the previous crop of the year before spring corn sowing, crush the stalks of the previous crop and bury them in the soil layer, as follows:

[0034] When the water content of the stalk is lower than 10%, the stalk is crushed into 5-8cm segments by machinery, and then the decomposing bacterium is sprayed on the stalk (in this embodiment, the golden stalk is decomposed E...

Embodiment 2

[0056] Example 2: Ridging and film-covering planting spring corn

[0057] Implementation location: Fumeng County, Liaoning Province (the highest altitude in the county is 831.4m, the lowest altitude is 45.8m, the annual average temperature is 7.2°C, the frost-free period is about 150 days, the annual average precipitation is about 500mm, and the precipitation from May to September is 425mm, accounting for 85% of the year).

[0058] Corn varieties: "Liaodan 1211" suitable for local resources and "Zhengdan 958" with wide adaptability.

[0059] Step1. Straw returning to the field

[0060] After harvesting the previous crop of the year before spring corn sowing, put the straw of the previous crop directly in the furrow to degrade, and the amount of straw returned to the field is 7500kg / hm 2 .

[0061] Step2, dry land fertilization

[0062] Apply compound fertilizer and slow-release urea to the dry land where the straw is directly laid flat, and the amount of compound fertilize...

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Abstract

The invention discloses a dry land spring corn planting method based on straw turnover. The dry land spring corn planting method comprises the following steps that step 1, after preceding crops in the year before spring corn sowing are harvested, preceding crop straws are smashed and buried in a soil layer or the preceding crop straws are directly and flatly put in furrows for degradation; step 2, a compound fertilizer and a slow release urea are applied to dry land, or a composted organic fertilizer is applied; step 3, ridge leveling and film covering are conducted on the dry land buried with the smashed crop straws, or ridging and film covering are conducted on the dry land in which the crop straws are directly and flatly put; step 4, spring corn seeds are sowed in the mid-to-end of April of the year after straw turnover, and a conventional method is adopted for field crop management after sowing. The dry land spring corn planting method has the advantages that the content of soil organic matter and crop yield can be increased and the air pollution problem caused by straw incineration can be also avoided by adopting the planting method, meanwhile the rainfall utilization rate can be further obviously improved, and a new way is provided for ecological and circulatory agriculture.

Description

technical field [0001] The invention relates to a corn planting method, in particular to a dryland spring corn planting method based on straw returning to the field, and belongs to the technical field of crop planting. Background technique [0002] Film mulching has the functions of increasing temperature, retaining moisture, retaining water, preventing diseases, resisting insects, preventing salinity, inhibiting weeds, and increasing production. It has been rapidly promoted and applied in the agricultural field. Cover crops include food crops, economic crops, vegetables, and fruits. , trees, flowers, etc., have greatly promoted the development of agricultural production in our country. In the planting of spring corn in the northern arid area, plastic film plays a more important role. It not only improves the water use efficiency and increases grain production, but also avoids soil erosion caused by rainwater directly washing the soil surface and reduces soil nutrient loss. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/02
CPCA01B79/02A01G22/00Y02P60/20
Inventor 刘恩科张燕卿张雪丽严昌荣梅旭荣刘勤
Owner INST OF ENVIRONMENT & SUSTAINABLE DEV IN AGRI CHINESE ACADEMY OF AGRI SCI
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