Partitioned management method of soil nutrients

A soil nutrient and zoning management technology, applied in fertilization methods, climate change adaptation, fertilization devices, etc., can solve the problems of inaccurate soil nutrient analysis, difficult to quantitatively describe the spatial changes of soil properties, and inability to estimate soil attribute values, etc. Achieve the effect of improving fertilizer utilization efficiency and improving field management

Inactive Publication Date: 2013-05-08
RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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Problems solved by technology

[0003] Soil nutrients have obvious spatial variation characteristics. In the prior art, traditional statistical methods are usually used to describe the spatial variation characteristics of soil nutrients, that is, researchers select a representative test site in the research area, and divide The test site is divided into several relatively uniform areas on the plane, and the spatial variability of soil nutrients is expressed by calculating the mean value

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  • Partitioned management method of soil nutrients
  • Partitioned management method of soil nutrients
  • Partitioned management method of soil nutrients

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Embodiment Construction

[0027] The present invention is described in detail below in conjunction with accompanying drawing:

[0028] Such as figure 1 Shown, the present invention provides a kind of soil nutrient partition management method, comprises the following steps:

[0029] S1, collecting soil samples of the researched area according to the size of the set area; wherein, the studied area is used for planting set crops;

[0030] Wherein, the size of the setting area is set according to the actual precision requirement, for example, a 2.5km*2.5km grid.

[0031] S2, analyzing the contents of the soil indicators collected in the soil samples of the researched area;

[0032] Among them, soil indicators may include total nitrogen, total phosphorus, total potassium, alkaline nitrogen, available phosphorus, and available potassium.

[0033] S3, analyzing the spatial variation structure of the soil index with a geostatistical analysis method, performing Kriging interpolation analysis on the soil inde...

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Abstract

The invention provides a partitioned management method of soil nutrients. The partitioned management method comprises the steps of carrying out spatial overlay analysis on a topographic map, a soil map, an administrative map, a distribution map of set crops in a surveyed area and a spatial rank distribution map of nutrients in the digitized surveyed area by adopting a spatial overlay method to generate a primary partitioned management map of soil nutrients of the set crops in the surveyed area; carrying out merging operation on pattern spots in the primary partitioned management map of the soil nutrients in accordance with a preset rule and a main soil property similarity principle to obtain a total partitioned management unit of more than one variety of soil nutrients; and calculating the fertilizing amount of soil nutrients required for normal growth of each set plant in the total partitioned management unit of various varieties of soil nutrients according to a target output method. The partitioned management method can be used for quantitatively describing soil properties and space change situations in a targeted manner and has an important meaning in terms of improving the fertilizer utilization efficiency in a farmland, improving field management and especially implementing 'precision agriculture' in China.

Description

technical field [0001] The invention belongs to the technical field of soil nutrient management in agricultural soil science, and in particular relates to a method for managing soil nutrient by division. Background technique [0002] Well-managed soil nutrients and reasonable fertilization are major technical issues related to the sustainable development of agriculture in our country. The status of soil nutrients directly affects the yield and quality of plant species. Therefore, it is the premise and foundation to promote the implementation of precision agriculture in my country to study the soil nutrient status and give reasonable fertilization suggestions according to the soil nutrient status. [0003] Soil nutrients have obvious spatial variation characteristics. In the prior art, traditional statistical methods are usually used to describe the spatial variation characteristics of soil nutrients, that is, researchers select a representative test site in the research are...

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Application Information

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IPC IPC(8): A01C21/00
CPCY02A40/10
Inventor 何鹏吴敏吴炳孙韦家少王大鹏
Owner RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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