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Method of reducing farmland nitrogen and phosphorus emissions

A nitrogen and phosphorus, farmland technology, applied in chemical instruments and methods, botanical equipment and methods, agriculture, etc., to achieve the effects of reducing nitrogen and phosphorus emissions, easy implementation, and improving water environment quality

Inactive Publication Date: 2015-10-28
江苏田娘农业科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a method for reducing nitrogen and phosphorus discharge in farmland, which can solve the shortcomings of existing ecological interception projects in dealing with the discharge of nitrogen and phosphorus in farmland

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  • Method of reducing farmland nitrogen and phosphorus emissions
  • Method of reducing farmland nitrogen and phosphorus emissions
  • Method of reducing farmland nitrogen and phosphorus emissions

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0026] see figure 1 and figure 2 , the embodiment of the present invention includes:

[0027] The invention discloses a method for reducing nitrogen and phosphorus discharge from farmland, comprising the steps of:

[0028] (1) Determine the farmland runoff and specify the confluence node; the confluence node refers to the point where the local runoff of the farmland flows into the main ditch of the farmland;

[0029] (2) Collect and preliminarily treat farmland runoff: At the confluence node of farmland runoff, the original drainage ditches will be thoroughly dredged, and new ecological interception ditches will be excavated, and planted in th...

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Abstract

The invention discloses a method of reducing farmland nitrogen and phosphorus emissions. The method comprises the following steps that (1) farmland runoffs are determined, and confluence nodes are highlighted; (2) the farmland runoffs are collected and subjected to primary treatment; (3) the farmland runoffs are subjected to purification treatment; (4) the farmland runoffs are subjected to storage adjustment and water purification; and (5) purified water is drained stably. The method of reducing the farmland nitrogen and phosphorus emissions is simple and convenient to implement, and low in operating cost; through modification on the conventional farmland channels and pools and new construction of a part of channels and pools, with the adoption of local water plants with purification functions in the channels and the pools, supplemented by appropriate engineering technological means, the method realizes the effects that agricultural non-point source pollutions, particularly nutritive elements such as nitrogen and phosphorus, are intercepted and removed, and the purposes of controlling the agricultural non-point source pollutions and improving the water environment quality are achieved finally.

Description

technical field [0001] The invention relates to the field of ecological agriculture, in particular to a method for reducing nitrogen and phosphorus discharge from 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 algae eutrophication to be prominent an...

Claims

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Application Information

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IPC IPC(8): E02B11/00E02B5/02C02F3/32C02F3/34A01G1/00
CPCY02W10/10
Inventor 王强夏伟黄任良邹军华
Owner 江苏田娘农业科技有限公司
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