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Method for reducing application of nitrogen fertilizer to oilseed rape in succession of oilseed rape and corn

A technology for rape and corn, applied in fertilization methods, land preparation methods, fertilization devices, etc., can solve the problems of insufficient application of organic fertilizers, high chemical fertilizer consumption, deterioration of soil tillage, etc., and achieve the effect of improving yield and quality.

Pending Publication Date: 2020-08-25
INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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Problems solved by technology

[0002] Corn-rape rotation is one of the main crop rotation patterns in dry-land rotation areas, but it has the following shortcomings: the amount of chemical fertilizers in the corn-rape rotation area is high, the application of organic fertilizers is insufficient, the soil plowability deteriorates under long-term chemical fertilizer application, and the soil moisture is poor during the sowing period of rape And other issues

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  • Method for reducing application of nitrogen fertilizer to oilseed rape in succession of oilseed rape and corn
  • Method for reducing application of nitrogen fertilizer to oilseed rape in succession of oilseed rape and corn
  • Method for reducing application of nitrogen fertilizer to oilseed rape in succession of oilseed rape and corn

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Embodiment Construction

[0022] A method for reducing nitrogen fertilizer application to rapeseed in corn-rape crop rotation, comprising the following steps: 1) in corn-rape crop rotation, leguminous green manure is planted between the rows of the previous crop of corn; The leguminous green manure after pressing provides nutrients for the growth of subsequent crops of rapeseed (reaching the reduction of nitrogen fertilizer in the rapeseed season); 3) planting rapeseed (after the rapeseed is harvested, plant corn again, and plant leguminous green manure between the corn rows; that is, carry out corn rapeseed crop rotation).

[0023] The specific steps are:

[0024] 1) Variety selection:

[0025] Choose rapeseed with moderate growth period, late sowing resistance, good lodging resistance, strong disease resistance, and high-quality high-yield varieties suitable for machine harvesting. For example, Huayouza 62, Dadi 199, Zhongshuang 19, etc. can be used in the main production areas of Hubei Province. F...

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Abstract

The invention relates to a method for reducing application of a nitrogen fertilizer to oilseed rape in succession of oilseed rape and corn, and belongs to the technical field of crop planting. A method for reducing application of the nitrogen fertilizer to oilseed rape in succession of the oilseed rape and corn is characterized by comprising the following steps: 1) planting leguminous green manurebetween previous corn rows in succession of oilseed rape and corn; 2) after the previous corn is harvested, turning over crops and returning the same to the field, wherein the turned leguminous greenmanure provides nutrients for the growth of subsequent oilseed rape, and 3) planting the oilseed rape. By means of the method, nitrogen fertilizer application in oilseed rape planting can be reduced,and non-point source pollution to the environment is reduced.

Description

technical field [0001] The invention relates to a method for reducing nitrogen fertilizer applied to rape in rapeseed and corn rotation, and belongs to the technical field of crop planting. Background technique [0002] The corn-rape rotation is one of the main crop rotation patterns in dry-land rotation areas, and it has the following shortcomings: the amount of chemical fertilizers in the corn-rape rotation areas is high, the application of organic fertilizers is insufficient, the soil plowability deteriorates under long-term chemical fertilizer application, and the soil moisture in the rape sowing period is poor And other issues. Contents of the invention [0003] The purpose of the present invention is to provide a method for reducing the application of nitrogen fertilizer to rapeseed in the rotation of corn and rapeseed, which can reduce the application of nitrogen fertilizer in the cultivation of rapeseed and reduce the non-point source pollution to the environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01B79/02A01G22/15A01G22/20
CPCA01B79/02A01C21/005A01G22/15A01G22/20
Inventor 顾炽明廖星秦璐李银水李小勇谢立华
Owner INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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