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A method for establishing a maize soil nutrient abundance and shortage index system based on an altitude division

A soil nutrient and index system technology, applied in the field of soil nutrient research, can solve the problems of considering environmental factors and lack of analysis of corn yield, and achieve the effect of ensuring rationality and simplifying the analysis process.

Pending Publication Date: 2019-03-29
YUNNAN HANZHE TECHN CO LTD
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Problems solved by technology

[0005] The object of the present invention is to provide a method for establishing a corn soil nutrient abundance and deficiency index system based on altitude division, and to solve the problem that the existing analysis of soil fertility and corn yield lacks consideration of environmental factors

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  • A method for establishing a maize soil nutrient abundance and shortage index system based on an altitude division
  • A method for establishing a maize soil nutrient abundance and shortage index system based on an altitude division
  • A method for establishing a maize soil nutrient abundance and shortage index system based on an altitude division

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specific Embodiment

[0049] The present invention can be divided into following 7 steps:

[0050] 1. Altitude zone division of the experimental area;

[0051] 2. Classification of main soil types in the elevation zone;

[0052] 3. Set up experiments in farmland plots of main soil types;

[0053] 4. Measure the effective nutrients of the soil in the experimental area, and obtain the measured values ​​of soil nutrients in each field;

[0054] 5. With the relative yield as the dependent variable and the effective nutrient extraction test value as the independent variable, a regression analysis is performed to obtain the regression function of the soil test value and the relative yield;

[0055] 6. Use the five-level classification standard to classify the relative yield and determine the index of soil nutrient abundance and deficiency;

[0056] 7. Determine the corresponding fertilization amount according to the classification.

[0057] The following content will describe the specific methods and b...

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Abstract

The invention discloses a method for establishing a maize soil nutrient abundance and shortage index system based on an altitude division, comprising the following steps: S1, zoning an altitude elevation zone of an experimental area; S2: Classifying the soil types in the elevation zone; S3, selecting farmland blocks for setting experimental areas according to the divided soil types; S4, measuringthe available nutrients of the soil in the experimental area to obtain the measured values of the soil nutrients of each field; S5, taking relative yield as dependent variable and extracting test value of soil available nutrient as independent variable to carry out regression analysis, and obtaining regression function of soil test value and relative yield; 6, grading that relative yield by adopting a five-grade classification standard, and determining a soil nutrient abundance and deficiency index; S7: Determining the corresponding fertilizer application amount according to the classification. The method simplifies the analysis process of the environmental factors by dividing the elevation zone of the region, and ensures the rationality of the maize soil nutrient abundance and shortage index system established in the region with large elevation difference.

Description

technical field [0001] The invention relates to soil nutrient research, in particular to a method for establishing a corn soil nutrient abundance index system based on altitude divisions. Background technique [0002] In the 1980s, my country launched the "Second National Soil Survey" and "Soil Nutrient Abundance Index Research", conducted systematic research on the effective nutrient grading indicators for 16 soil types, and formulated corresponding nutrient abundance and deficiency indicators. Based on this system, several recommended fertilization methods have been put forward in various places, which provides a basis for scientific fertilization and nutrient management, and promotes the development of soil testing and formula fertilization technology. After more than 30 years of development of this technology, major changes have taken place in the current fertilization methods and cultivation methods, and the differences in soil fertility in various regions have greatly i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/06393G06Q50/02
Inventor 邓昌军罗元金林迪王琳李锐傅南昌赵明瑞
Owner YUNNAN HANZHE TECHN CO LTD
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