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Judging method for hazard of soil secondary salinization on Chinese cabbages

A technology of secondary salinization and identification method, applied in the field of identification of Chinese cabbage affected by soil secondary salinization

Inactive Publication Date: 2019-08-16
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, no relevant organization or individual has proposed a complete and scientifically reasonable diagnostic process

Method used

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  • Judging method for hazard of soil secondary salinization on Chinese cabbages
  • Judging method for hazard of soil secondary salinization on Chinese cabbages
  • Judging method for hazard of soil secondary salinization on Chinese cabbages

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Embodiment Construction

[0022] A method for judging the damage degree of Chinese cabbage by soil secondary salinization is characterized in that it comprises the following steps:

[0023] Step (1), the collection of Chinese cabbage planting soil and Chinese cabbage samples;

[0024] The standard planning divides the entire greenhouse into several areas of ten square meters, with 5 points for each block, and 6 soil samples are randomly selected for each greenhouse, and 2 cabbages are randomly sampled corresponding to the soil points, and the depth of the soil layer is 0. -10cm, 10-20cm soil, get collected soil and cabbage samples;

[0025] Step (2), whether the cabbage planting soil is subject to soil secondary salinization;

[0026] The collected soil was used for soil sample determination to obtain the main ion NO caused by secondary salinization of the soil - , SO 4- , Ca 2+ The content was determined:

[0027] Ca in soil 2+ The determination method is: NY-T 296-1995 Determination of total ca...

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Abstract

The invention relates to a judging method for the hazard of soil secondary salinization on Chinese cabbages. The method comprises the steps of (1), collecting Chinese cabbage planting land soil and Chinese cabbage samples; (2), judging whether the Chinese cabbage planting land soil is subjected to soil secondary salinization or not; and (3), obtaining identification standards for the influence ofthe soil secondary salinization on the Chinese cabbages. According to the method disclosed by the invention, the hazard degree of the soil secondary salinization on the Chinese cabbages is measured bydiagnosing the electric conductivity of the soil and determining the content of main ions NO<->, SO4<-> and Ca<2+> causing the soil secondary salinization in the soil and the content of nitrate in the Chinese cabbages; and a complete, reasonable and feasible judging method is provided.

Description

technical field [0001] The invention relates to a method for identifying the damage of cabbage by soil secondary salinization, which belongs to the field of modern agriculture and can be used for identifying the degree of soil secondary salinization in cabbage planting sites, the degree of damage of cabbage by soil secondary salinization, and the like. Background technique [0002] In recent years, with the rapid development of my country's facility agriculture, the planting scale of facility vegetable greenhouses has continued to expand. Large-scale protected cultivation and long-term repeated use have resulted in many soil problems, such as soil compaction, soil secondary salinization, soil nutrient imbalance, soil acidification, etc., among which the problem of soil secondary salinization is particularly prominent. [0003] Soil secondary salinization is mainly due to unreasonable fertilization, improper irrigation methods, rising groundwater level, increased salinity, et...

Claims

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Application Information

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IPC IPC(8): G01N21/33G01N27/04
CPCG01N21/33G01N27/041
Inventor 蒋昕陈旺吕铭童楷程王振兴陶天云盛海君钱晓晴
Owner YANGZHOU UNIV
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