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A balanced fertilization method for wheat-corn rotation crop straw returning to the field

A technology of balancing fertilization and corn stalks, applied in fertilization methods, fertilization devices, agriculture, etc., can solve the problems of ambiguous soil obstacle factors, inability to scientifically manage fertilizer and water, etc.

Active Publication Date: 2021-09-14
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are problems in the management technology of wheat and corn rotation planting in low- and medium-yield fields or hilly areas: the obstacle factors in the soil are unclear, and it is impossible to start with straw returning to the field to improve soil fertility. We can only follow the experience and cannot manage scientifically. fat water

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  • A balanced fertilization method for wheat-corn rotation crop straw returning to the field

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Experimental program
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Effect test

Embodiment 1

[0030] A method for balanced fertilization by returning wheat-corn crop stalks to the field, comprising the following steps:

[0031] (1) After the corn is harvested, use the straw returning machine to crush the corn stalks into 1~10cm fragments and return them to the field. Wet soil is evenly sprinkled on the corn stalks, and the amount of decomposing agent and urea added is: decomposing agent 1kg / mu, urea 10kg / mu. Then spread 200kg of commercial organic fertilizer per mu, and return to the field after deep plowing. The commercial organic fertilizer is a commercial organic fertilizer that meets the requirements of the NY 525-2012 organic fertilizer standard.

[0032] (2) Use a rotary tiller to plow 25 to 30 cm deep to make the organic fertilizer more evenly decomposed. After deep plowing, level the ground, sow wheat with the seeder, and the wheat seeding rate is 10kg / mu. Measure the nitrogen, phosphorus and potassium fertilizer content of cultivated land soil, apply 15-15-...

Embodiment 2

[0037] A method for balanced fertilization by returning wheat-corn crop stalks to the field, comprising the following steps:

[0038](1) After the corn is harvested, use the straw returning machine to crush the corn stalks into 1~10cm fragments and return them to the field. Wet soil is evenly sprinkled on the corn stalks, and the amount of decomposing agent and urea added is: decomposing agent 1.5kg / mu, urea 12.5kg / mu. Then spread 200kg of commercial organic fertilizer per mu, and return to the field after deep plowing. The commercial organic fertilizer is a commercial organic fertilizer that meets the requirements of the NY 525-2012 organic fertilizer standard.

[0039] (2) Use a rotary tiller to plow 25 to 30 cm deep to make the organic fertilizer more evenly decomposed. After deep plowing, level the ground, sow wheat with a seeder at a rate of 12.5kg / mu. Measure the nitrogen, phosphorus and potassium fertilizer content of cultivated land soil, apply 15-15-15 compound fer...

Embodiment 3

[0044] A method for balanced fertilization by returning wheat-corn crop stalks to the field, comprising the following steps:

[0045] (1) After the corn is harvested, use the straw returning machine to crush the corn stalks into 1~10cm fragments and return them to the field. Wet soil is evenly sprinkled on the corn stalks, and the amount of decomposing agent and urea added is: decomposing agent 2kg / mu, urea 15kg / mu. Then spread 200kg of commercial organic fertilizer per mu, and return to the field after deep plowing. The commercial organic fertilizer is a commercial organic fertilizer that meets the requirements of the NY 525-2012 organic fertilizer standard.

[0046] (2) Use a rotary tiller to plow 25 to 30 cm deep to make the organic fertilizer more evenly decomposed. After deep plowing, level the ground, sow wheat with the seeder, and the wheat seeding rate is 15kg / mu. Measure the nitrogen, phosphorus and potassium fertilizer content of cultivated land soil, apply 15-15-...

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Abstract

The invention relates to a method for balanced fertilization by returning wheat-corn crop stalks to the field, and belongs to the technical field of agricultural planting and fertilization. During the annual rotation period, all winter wheat-summer maize stalks were returned to the field. The decomposed part of the straw could improve the fertility of the arable land, and the undecomposed part could increase the water holding capacity of the arable land and maintain the ratio of fertilizer to water. Soil testing, fertilization and sowing of wheat have a reasonable nutrient distribution ratio, which reduces unnecessary waste of excess fertilization, and at the same time effectively improves soil fertility and ensures wheat production. Topdressing urea at the jointing stage after the wheat turned green to balance the soil carbon-nitrogen ratio of straw and organic fertilizer. Soil testing, fertilization, sowing corn, and solid corn compound fertilizer are applied to ensure the yield of corn. Returning straw to the field and adding organic fertilizers can greatly improve the physical structure of the soil and increase the reproduction capacity of the soil. It realizes the regulation of the total amount of fertilization, phased planning, and effective combination with cultivation and farming measures, and ensures the balance of soil-crop water and fertilizer, the balance of organic fertilizer-inorganic fertilizer and sustainable use of land.

Description

technical field [0001] The present invention relates to a method for balanced fertilization of wheat-corn rotation crop stalks returning to the field, in particular to a method for annual fertilization of water and fertilizer balance and organic fertilizer-inorganic fertilizer balance under the condition of returning all winter wheat-summer corn stalks to the field in medium and low-yield fields or hilly areas. It belongs to the technical field of agricultural planting and fertilization. Background technique [0002] Food security is a major issue for national development. The economic development and social stability of any country are based on food security. In my country, food safety is not only an economic problem, but also a social problem, and ensuring food safety is the basis and guarantee for realizing national security. With the development of the national economy and the improvement of the level of urbanization, the per capita food demand continues to increase. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/20A01C21/00
CPCA01C21/005A01C21/007A01G22/20
Inventor 郑福丽谭德水刘萍张柏松马征王学君
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI