Tobacco planting soil quality comprehensive evaluation method based on physicochemical indexes
A technology of physical and chemical indicators and comprehensive evaluation, applied in the field of comprehensive evaluation of tobacco planting soil quality based on physical and chemical indicators, can solve the problems of reducing efficiency and accuracy of results
Inactive Publication Date: 2019-12-03
TOBACCO RES INST CHIN AGRI SCI ACAD
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Problems solved by technology
The impact of soil fertility on crop yield quality is comprehensive, and the influencing factors include various factors such as chemistry and physics. If these factors are recorded with continuous variables, multi-factor analysis involves big data, which will inevitably reduce the efficiency and accuracy of results. Therefore, it is necessary to Relying on scientific mathematical methods, comprehensively evaluate soil fertility big data quickly and accurately
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[0018] The present invention will be described in detail below in combination with specific embodiments.
[0019] The present invention comprises following physical and chemical index:
[0020] Important indicators: organic matter, pH value, alkaline nitrogen, available potassium, available phosphorus;
[0021] Secondary indicators: water-soluble chlorine, exchangeable calcium, exchangeable magnesium;
[0022] Auxiliary indicators: available boron, available zinc, molybdenum, manganese, copper, iron;
[0023] Risk indicators: arsenic, lead, cadmium, mercury, chromium.
[0024] The weight distribution of physical and chemical indicators at all levels is shown in Table 1:
[0025] Table 1 Physical and chemical index weighting table
[0026]
[0027] The details of the scoring standards for physical and chemical indicators at all levels are shown in Table 2 and Table 3:
[0028] Table 2 Scoring standard table of physical and chemical indicators (X is the content value of ...
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The invention discloses a tobacco planting soil quality comprehensive evaluation method based on physicochemical indexes. The physicochemical indexes comprise an important index, a secondary index, anauxiliary index and a risk index. The method comprises the steps of assigning a score weight to each grade of physicochemical indexes, assigning a score to each grade of physicochemical index, and calculating a score through a tobacco planting soil quality comprehensive score calculation formula to finally obtain a tobacco planting soil quality comprehensive evaluation level. The method has the advantages that the effectiveness of the tobacco planting soil quality evaluation is realized, the tobacco planting soil quality can be accurately and effectively evaluated, the evaluation method is simple, and the operability is high.
Description
technical field [0001] The invention belongs to the technical field of agriculture and relates to a comprehensive evaluation method for soil quality of tobacco planting based on physical and chemical indicators. Background technique [0002] Soil is the place where plant nutrients transform and cycle, and the quality of soil directly affects the yield and quality of flue-cured tobacco. Affected by factors such as topography, land use, soil parent material, and climatic conditions, soil fertility has complex spatial variability. The moisture and various mineral nutrients required for tobacco growth are directly supplied by the soil. The fertility of tobacco planting soil affects the quality of tobacco leaves to a certain extent. Fertility quality evaluation is an important part of soil quality evaluation. Physical and chemical indicators are a comprehensive reflection of various soil attributes, and soil fertility quality evaluation is an important content of soil quality ev...
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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 孙鹏邓小波郑福端高勇冯浪鲁世军林樱楠曹鹏云
Owner TOBACCO RES INST CHIN AGRI SCI ACAD