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Wheat special-purposed composite fertilizer application method

A compound fertilizer and application method technology, applied in the agricultural field, can solve the problems of unreasonable application ratio, affecting the improvement of wheat yield and quality, and low nutrient utilization rate, so as to maintain the continuous supply capacity of soil, realize high-efficiency utilization, and save costs Effect

Inactive Publication Date: 2017-02-15
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

However, in my country's wheat fertilization, there are problems such as unreasonable ratio of nitrogen, phosphorus and potassium fertilizer application, low nutrient utilization rate, etc., which seriously affect the improvement of wheat yield and quality.

Method used

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  • Wheat special-purposed composite fertilizer application method
  • Wheat special-purposed composite fertilizer application method
  • Wheat special-purposed composite fertilizer application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In this example, winter wheat in the Huang-Huai-Hai Plain is taken as an example. According to the local environmental conditions and the statistics of local winter wheat harvest in 2005-2010, the target yield of winter wheat in the Huang-Huai-Hai Plain is 7355kg / hm 2 , The potassium requirement of 100kg grain is 2.69kg.

[0046] The actual field survey of winter wheat straw yield in Huanghuaihai plain is 7804kg / hm 2 , the rate of straw returning to the field was 71.5%, and the mass of potassium in 100kg of straw was 1.92kg.

[0047] The content of available potassium in the Huanghuaihai Plain is 104mg / kg. Based on the soil available potassium of 100mg / kg, the correction coefficient of potassium fertilizer application in the Huanghuaihai winter wheat region is 0.96.

[0048] The mass of potassium entering the unit area of ​​farmland from the environment and the loss rate of potassium are negligible.

[0049] Then according to the formula:

[0050]

[0051] Calcula...

Embodiment 2

[0078] In this example, winter wheat in East China is taken as an example. According to the local environmental conditions and the statistics of local winter wheat harvest in 2005-2010, the target output of winter wheat in East China is 5914kg / hm 2 , The potassium requirement of 100kg grain is 2.38kg.

[0079] The straw yield of East China winter wheat actual field investigation is 6219kg / hm 2 , the rate of straw returning to the field is 100%, and the mass of potassium in 100kg of straw is 1.53kg.

[0080] The content of available potassium in East China winter wheat area is 64.35 mg / kg, based on soil available potassium 100 mg / kg, the correction coefficient of potassium fertilizer application in East China winter wheat area is 1.55.

[0081] The mass of potassium entering the unit area of ​​farmland from the environment and the loss rate of potassium are negligible.

[0082] Then according to the formula:

[0083]

[0084] Calculate the recommended application rate of ...

Embodiment 3

[0111] In this embodiment, winter wheat in the Loess Plateau is taken as an example. According to the local environmental conditions and the statistics of local winter wheat harvest in 2005-2010, the target yield of winter wheat in the Loess Plateau is 5614kg / hm 2 , The potassium requirement of 100kg grain is 2.63kg.

[0112] The actual field survey of winter wheat straw yield in the Loess Plateau is 7121kg / hm 2 , the rate of straw returning to the field is 100%, and the mass of potassium in 100kg of straw is 1.71kg.

[0113] The content of available potassium in the Loess Plateau area is 167 mg / kg. Based on the soil available potassium 100 mg / kg, the correction coefficient of potassium fertilizer application in the winter wheat area of ​​the Loess Plateau is 0.60.

[0114] The mass of potassium entering the unit area of ​​farmland from the environment and the loss rate of potassium are negligible.

[0115] Then according to the formula:

[0116]

[0117] Calculate the r...

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Abstract

The invention relates to a wheat special-purposed composite fertilizer application method. The method comprises the step that a composite fertilizer is applied in a field in a wheat growth period. The composite fertilizer comprises a nitrogen fertilizer, a phosphorus fertilizer and a potassium fertilizer. The method is characterized in that a potassium fertilizer application amount in unit area of field is as shown in the formula. In the formula, CorpK-out is the mass of potassium brought out of the field when the wheat in the unit area of field is harvested. EnvK-in is the mass of potassium entering the unit area of field from the environment. RatK-out is potassium loss rate of the unit area of field. alpha is a potassium fertilizer application correction coefficient, wherein alpha=standard available potassium content / field soil available potassium content. With the above technical scheme, the fertilization amount recommended by the invention assists in providing supplementation in nutrient absorption during a wheat growth period, and assists in providing supplementation for soil nutrient loss during the wheat growth period. Therefore, soil nutrient balance can be maintained, soil continuously supplying capacity is maintained, and wheat high and stable yield can be ensured.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a method for applying a special compound fertilizer for wheat. Background technique [0002] Wheat is one of the important food crops in my country. my country's wheat planting area accounts for about 20.6% of the total grain sown area, and wheat production accounts for 21.9% of the total grain output. Wheat plays a pivotal role in ensuring my country's food security. However, in my country's wheat fertilization, there are problems such as unreasonable ratio of nitrogen, phosphorus and potassium fertilizer application and low nutrient utilization efficiency, which seriously affect the improvement of wheat yield and quality. Therefore, it is necessary to invent a method of applying special compound fertilizers for wheat in different regions, so as to ensure the long-term balance of the soil environment, maintain high and stable yields of wheat, and protect the ecological environment. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00
CPCA01C21/007
Inventor 车升国赵秉强袁亮李燕婷沈兵林治安李伟杨相东李娟
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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