Recommended applying method for wheat phosphorus chemical fertilizers

An application method and wheat phosphorus technology, applied in the directions of fertilization method, application, fertilization device, etc., can solve the problems of increased deviation of recommended results, cumbersome calculation process, negative fertilization amount, etc., and achieve easy understanding, scientific calculation formula, suitable The effect of application promotion

Inactive Publication Date: 2019-03-01
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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Problems solved by technology

Fertilization recommended by the nutrient balance method involves multiple parameters such as soil nutrient utilization coefficient, chemical fertilizer utilization rate, and nutrient absorption. odd high situation

Method used

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  • Recommended applying method for wheat phosphorus chemical fertilizers
  • Recommended applying method for wheat phosphorus chemical fertilizers

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Embodiment Construction

[0028] Determine the recommended amount of nitrogen fertilizer N in the wheat growth cycle according to the target yield of wheat and soil nutrient status T , recommended amount of phosphate fertilizer P T , recommended amount of potassium fertilizer K T Calculated by formulas (1), (3) and (5) respectively:

[0029] N T =N P *Y M +(10-M) *M C +C N (3)

[0030] P T =P P *Y M +(20-P S ) *P C +C P (1)

[0031] K T = K P *(Y M -300)+(110-K S ) *K C +C K (5)

[0032] In the formula, N T ,P T 、K T Respectively, the recommended amount of nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer per mu of wheat, the unit is kg / mu; YM is the target yield of wheat, unit kg / mu; N P ,P P 、K P Respectively, the unit yield coefficients of wheat nitrogen, phosphorus and potassium, which are equal to the absorption of nitrogen, phosphorus and potassium fertilizers per unit yield of wheat; M is the measured value of soil organic matter content, the uni...

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Abstract

The invention discloses a recommended applying method for wheat phosphorus chemical fertilizers. According to wheat target yield and soil nutrient conditions, phosphorus fertilizer recommended quantity in a wheat growth period is determined on the basis of a formula that PT:PT=PP*YM+(20-PS)*PC+CP, wherein PT refers to phosphorus fertilizer recommended quantity for wheat per mu, YM refers to wheattarget yield, PP refers to a phosphorus unit yield coefficient of wheat, PS refers to soil effective phosphorus content measured value, PC refers to a soil effective phosphorus utilization coefficient, and CP refers to phosphorus recommended ecological environment comprehensive correction parameters. According to the recommended applying method for the wheat phosphorus chemical fertilizers, the target yield is multiplied by the phosphorus unit yield coefficient of wheat to obtain the nitrogen fertilizer quantity required by the target yield, wheat planting personnel can quickly and accuratelycalculate wheat nitrogen and phosphorus-potassium fertilizer applying quantity according to the formula, defects of common recommended fertilizing methods are overcome, and convenience in understanding, convenience, practicality, remarkable effects and suitableness for application and popularization are realized.

Description

technical field [0001] The present invention relates to a recommended application method of phosphorus chemical fertilizer for wheat, more specifically, it relates to a recommended application method of phosphorus chemical fertilizer for wheat combined with the amount of fertilizer required to achieve the target yield, soil supplement or absorption, and comprehensive correction parameters of the ecological environment method. Background technique [0002] Nitrogen, phosphorus, and potassium are the three most absorbed elements during plant growth. In order to ensure the yield of crops, it is necessary to apply nitrogen, phosphorus, and potassium fertilizers during their growth cycle. Fertilization recommended by the nutrient balance method involves multiple parameters such as soil nutrient utilization coefficient, chemical fertilizer utilization rate, and nutrient absorption. The odd situation. When fertilization is recommended by the abundance index method, when the basic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00G06Q50/02
CPCA01C21/007G06Q50/02
Inventor 郭跃升刘延生徐钰马荣辉董艳红
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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