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A method for the prevention, control and remediation of nitrogen and phosphorus pollution in farmland

A technology for farmland nitrogen and phosphorus restoration methods, which is applied in the field of ecological agriculture to achieve the effects of avoiding repeated supplementation of nitrogen and phosphorus fertilizers, reducing the amount of use, and realizing ecological cycles.

Active Publication Date: 2018-08-03
鸿灌环境技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides a method for the prevention, control and repair of nitrogen and phosphorus pollution in farmland, which can effectively prevent and repair the situation of nitrogen and phosphorus pollution in farmland

Method used

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  • A method for the prevention, control and remediation of nitrogen and phosphorus pollution in farmland

Examples

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Embodiment 1

[0030] A method for preventing, controlling and repairing nitrogen and phosphorus pollution in farmland, comprising the following steps:

[0031] a Set up farmland ditches, set ditches according to the direction of farmland runoff, and set up a filter pool 4 at the position where the ditches converge. 3 support net and ultrafiltration membrane 3, the ultrafiltration membrane 3 is used to filter the nitrogen and phosphorus components in the farmland water, and the filter pool 4 is used to gather the farmland water filtered by the ultrafiltration membrane 3; at the same time, the central position of the filter pool 4 A water collecting well 2 is provided, and the wellhead size of the water collecting well 2 is smaller than the size of the filter tank 4, and the water collecting well 2 is used to collect farmland water filtered by the ultrafiltration membrane 3;

[0032] In this embodiment, in order to reduce the pressure of the ultrafiltration membrane 3 at the inlet when the fi...

example 1

[0041] Example 1, 2 parts of iron carbonate, 10 parts of calcium carbonate and 2 parts of ammonium carbonate;

example 2

[0042] Example 2, 5 parts of iron carbonate, 3 parts of calcium carbonate and 10 parts of ammonium carbonate;

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Abstract

The invention belongs to the field of ecological agriculture, and particularly relates to a farmland nitrogen and phosphorus pollution prevention, control and remediation method which includes the steps: a, arranging a farmland ditch; b, mounting a farmland irrigation device above a water-collecting well; c, applying fertilizers to a farmland; d, subsequently supplementing fertilizers to the farmland, gathering farmland water by a filter tank, analyzing nitrogen and phosphorus concentration, diluting the farmland water of the filter tank according to farmland requirements and then spraying the farmland water to the farmland. Farmland nitrogen and phosphorus pollution is effectively prevented and remediated by the method.

Description

technical field [0001] The invention belongs to the field of ecological agriculture, and specifically relates to a method for preventing, controlling and repairing nitrogen and phosphorus pollution in farmland. Background technique [0002] In my country, agricultural non-point source pollution has become an important factor affecting the water environment, and is becoming one of the main reasons for the deterioration of my country's ecological environment, seriously restricting the sustainable development of agriculture and rural economic environment. The main cause of agricultural non-point source pollution is the large input and unreasonable use of chemical fertilizers and pesticides, which lead to high concentrations of total nitrogen and total phosphorus in farmland drainage, and a large amount of residual nitrogen and phosphorus are washed by rainwater and pass through the criss-crossing rivers. The river network system enters rivers and lakes, causing the problem of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02C02F1/44C05F17/00C05G3/00
CPCA01B79/02C02F1/444C05C3/00C05D3/02C05D9/02C05F17/00Y02W30/40
Inventor 张文魁
Owner 鸿灌环境技术有限公司
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