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Detection system and application of resistance control detection system for nitrogen and phosphorus leaching substances in facility vegetable fields

A detection system and resistance control technology, applied in measuring devices, suspension and porous material analysis, instruments, etc., can solve the problems of inconvenient use of eluent collection devices, insufficient reflection of the real situation of vegetable fields, and inconvenient vegetable planting, etc. Achieve good nitrogen and phosphorus resistance control effect, wide application, easy to use

Active Publication Date: 2022-03-11
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two methods have certain disadvantages. Although the former can obtain real data in the soil, the eluent collection device is very inconvenient to use and needs to be buried in the soil in advance, and it needs to be extracted without negative pressure when collecting solution samples.
The latter is a simulation of laboratory conditions. Generally, the device is small and inconvenient for vegetable planting, which is not enough to reflect the real situation of the vegetable field.

Method used

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  • Detection system and application of resistance control detection system for nitrogen and phosphorus leaching substances in facility vegetable fields
  • Detection system and application of resistance control detection system for nitrogen and phosphorus leaching substances in facility vegetable fields
  • Detection system and application of resistance control detection system for nitrogen and phosphorus leaching substances in facility vegetable fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the detection system for resistance and control of nitrogen leaching in facility vegetable fields of the present invention includes a vegetable planting box 1 and a first resistance control device box 4 nested in the vegetable planting box 1 .

[0045] The vegetable planting box 1 includes a box body 10, a base 9, a cultivation soil layer 11, and a first stainless steel mesh 3. The first stainless steel mesh 3 is located in the middle and upper part of the box body, and the first stainless steel mesh 3 is covered with the first glass Fiber gauze 2, the cultivated soil layer 11 is placed on the first glass fiber gauze 2, and vegetables 12 are planted on the cultivated soil. The thickness of the cultivated soil layer is 40-60 cm.

[0046] The first resistance control device box 4 is arranged in the first cavity 81 formed by the stainless steel mesh 3 and the base 9 . The first resistance control device box 4 includes a barrier composite layer ...

Embodiment 2

[0050] Such as figure 2 As shown, the facility vegetable field nitrogen leaching substance resistance control detection system includes the vegetable planting box 1, and the first resistance control device box 4, the second resistance control device box 5, and the third resistance control device box nested layer by layer. Box 6 and the fourth resistance control device box 7.

[0051] The vegetable planting box 1 includes a box body 10, a base 9, a cultivation soil layer 11, and a first stainless steel mesh 3. The first stainless steel mesh 3 is located in the middle and upper part of the box body, and the first stainless steel mesh 3 is covered with the first glass Fiber gauze 2, the cultivated soil layer 11 is placed on the first glass fiber gauze 2, and vegetables 12 are planted on the cultivated soil. The thickness of the cultivated soil layer is 40-60 cm.

[0052] The first resistance control device box 4 is arranged in the first cavity 81 formed by the first stainless ...

Embodiment 3

[0059] The monitoring system for heavy metal resistance and control effect used in the detection of heavy metal-contaminated soil has the same structure as in Example 2, the difference is that the cultivated soil is replaced with heavy metal-contaminated soil, and the barrier composite layer is replaced with a heavy metal adsorption barrier composite layer. The detection system can effectively monitor the adsorption and purification effect of the heavy metal adsorption and barrier compound on soil heavy metals, and can also reflect the remediation effect of heavy metal-contaminated soil.

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Abstract

The invention provides a resistance and control detection system and application of nitrogen and phosphorus leaching substances in facility vegetable fields. The detection system includes a vegetable planting box and a resistance control device box nested in the vegetable planting box. In the vegetable planting box, vegetables are grown in the upper part, and one or more resistance and control device boxes are arranged in the lower cavity. A plurality of resistance and control device boxes are embedded in layers, and each resistance and control device box is provided with a barrier compound layer. The bottom of the cavity is provided with a leaching solution collection tube. A valve is installed on the collection pipe, and the collected leaching solution is opened at intervals for detection, and the leaching solution in the device is pumped out for each sampling. The invention can conveniently complete the detection of nitrogen and phosphorus leaching loss in the control group and the test group in the same device and in one experiment. The experimental results are more accurate, reliable, and more convenient and quick. The detection system of the present invention can also be used in other soil-related detection fields.

Description

technical field [0001] The invention relates to a nitrogen and phosphorus leaching control detection system and its application in facility vegetable fields, and belongs to the technical field of process blocking and interception for blocking nitrogen and phosphorus loss in the prevention and control of agricultural non-point source pollution. Background technique [0002] With the rapid development of agriculture, the demand for vegetables is increasing. In 2015, my country's facility production area was nearly 5.75 million hectares, of which facility vegetable fields accounted for about 93%. In the vegetable management system, vegetable farmers blindly apply excessive fertilizers (especially nitrogen fertilizers) in order to increase the yield of vegetable crops. Coupled with the characteristics of high multiple cropping index of facility vegetables, large-scale application of nitrogen fertilizers causes excessive accumulation of nitrate nitrogen in the soil profile. Under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
CPCG01N15/08G01N15/0806G01N2015/0866
Inventor 薄录吉李彦徐刚张英鹏井永苹孙明仲子文
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI