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Potassium library regulation synergism method for winter wheat and summer corn crop rotation soil in North China

A technology for summer corn and winter wheat, which is applied in the field of soil potassium pool regulation and efficiency enhancement in winter wheat and summer corn rotation in North China, can solve the problems of blind potassium application, low potassium fertilizer utilization efficiency, and insufficient knowledge of potassium fertilizer application, so as to ensure circulation and supply and reduce waste , Improve the effect of annual utilization efficiency

Inactive Publication Date: 2019-04-09
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, the problems existing in the existing technology are: although the potash pool in our country has been deficient for many years, resulting in the obvious effect of potash fertilizer, due to the lack of knowledge of potash fertilizer application by farmers, the blind potash application is serious, and the current potash fertilizer recommendation technology lacks the overall planning of annual crop rotation Considering the low utilization efficiency of potassium fertilizer, it is urgent to develop suitable annual potassium pool regulation technology

Method used

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  • Potassium library regulation synergism method for winter wheat and summer corn crop rotation soil in North China
  • Potassium library regulation synergism method for winter wheat and summer corn crop rotation soil in North China
  • Potassium library regulation synergism method for winter wheat and summer corn crop rotation soil in North China

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Effect test

Embodiment 1

[0023] A North China winter wheat and summer corn rotation soil potassium library regulation and efficiency enhancement method, characterized in that it comprises the following steps:

[0024] (1) winter wheat application base fertilizer: before planting winter wheat, a certain amount of base fertilizer is applied to the soil, and the base fertilizer includes nitrogen fertilizer (N) 112.5 kg / ha, phosphorus fertilizer (P 2 o 5 ) 150 kg / ha and potash (K 2 O) 50 kg / ha;

[0025] (2) Planting of winter wheat: sow winter wheat in early October, the density is 3 million seedlings / ha, the seeding rate is 150 kg / ha, and water is 3 times, each time is 2200 cubic meters / hm 2 ; Topdress nitrogen fertilizer (N) 112.5 kg / ha on March 20-28 of the following year;

[0026] (3) Returning winter wheat stalks to the field: harvesting the winter wheat in early June of the following year, and returning all the winter wheat stalks to the field;

[0027] (4) Summer maize application base fertiliz...

Embodiment 2

[0032] A North China winter wheat and summer corn rotation soil potassium library regulation and efficiency enhancement method, characterized in that it comprises the following steps:

[0033] (1) winter wheat application base fertilizer: before planting winter wheat, a certain amount of base fertilizer is applied to the soil, and the base fertilizer includes nitrogen fertilizer (N) 112.5 kg / ha, phosphorus fertilizer (P 2 o 5 ) 150 kg / ha;

[0034] (2) Planting of winter wheat: sow winter wheat in early October, the density is 3 million seedlings / ha, the seeding rate is 150 kg / ha, and water is 3 times, each time is 2200 cubic meters / hm 2 ; Topdress nitrogen fertilizer (N) 112.5 kg / ha on March 20-28 of the following year;

[0035] (3) Returning winter wheat stalks to the field: harvesting the winter wheat in early June of the following year, and returning all the winter wheat stalks to the field;

[0036] (4) Summer maize application base fertilizer: after the winter wheat st...

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Abstract

The invention discloses a potassium library regulation synergism method for winter wheat and summer corn crop rotation soil in North China. The method is characterized by comprising steps as follows:application of base fertilizer to winter wheat, planting of the winter wheat, returning of winter wheat straw to the field, application of base fertilizer to summer corn, planting of the summer corn,returning of summer corn straw to the field and crop rotation. The potassium library regulation synergism method for winter wheat and summer corn crop rotation soil in North China has the benefits asfollows: circulation and supply of potassium library of soil are maintained and guaranteed, the annual utilization efficiency of potassium fertilizer is improved while the use amount of potassium fertilizer is not increased, waste of potassium fertilizer resource is reduced, and balanced and stable supply of quick-acting potassium of winter wheat and summer corn soil all the year round can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for regulating and increasing efficiency of soil potassium pool in winter wheat and summer maize rotation in North China. Background technique [0002] Potassium fertilizer application in wheat and jade rotation cropping areas in North China has not been paid attention to, and random application of potassium fertilizer by farmers is common. In the past 30 years, with the high-intensity use of soil and continuous absorption by crops, the deficit of soil potassium pool has accumulated for many years, causing the effect of potassium fertilizer application to gradually appear from south to north. However, insufficient attention has been paid to the application of potassium fertilizer, and the input of potassium fertilizer among different farmers varies greatly (supported by the survey data of farmers in this research group), and unreasonable application of po...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01C21/00
CPCA01C21/00A01G22/20
Inventor 冀宏杰张怀志田昌玉张认连徐爱国张维理龙怀玉
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI