Planting method for using interplanting of corn with cabbage and pea to control field non-point source pollution

Abstract

The invention relates to a planting method for using interplanting of corn with cabbage and pea to control field non-point source pollution, which includes: interplanting two rows of the cabbage per row of the corn, interplanting one row of the pea after the cabbage is harvested, setting corn row spacing as 150cm and plant spacing as 20cm, setting narrow cabbage row spacing as 60cm, wide row spacing as 90cm and planting spacing as 30cm, and setting pea row spacing as 150cm and plant spacing as 1.2cm; or interplanting four rows of the cabbage per row of the corn, interplanting two rows of the pear after the cabbage is harvested, setting corn row spacing as 270cm and planting spacing as 20cm, setting narrow cabbage row spacing as 60cm, wide row spacing as 90cm and planting spacing as 30cm, and setting narrow pea row spacing as 90cm, wide row spacing as 180cm and plant spacing as 1.2cm. By the method, surface runoff of fields is reduced by 65-69%, loss of total nitrogen is reduced by 71-74%, loss of total phosphate is reduced by 78-83%, output value can reach 4538-4626Yuan/mu, field non-point source pollution is controlled, and ecological environment is protected.

Description

technical field [0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a planting method for controlling farmland non-point source pollution. Background technique [0002] With the strengthening of our country's ability to control point source pollution, nitrogen, phosphorus and other nutrients in farmland surface runoff flow into lakes and cause eutrophication of water bodies. Farmland non-point source pollution has become the main source of pollution in lakes and other waters. Surface runoff pollution in agricultural areas refers to the process in which surface sediments and atmospheric sediments in agricultural areas diffuse into water bodies under the action of rainfall leaching and scouring, resulting in a decline in the environmental quality of surface water. Crop planting patterns have an important impact on farmland soil erosion and surface runoff. Reasonable planting patterns can effectively reduce farmland surface...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects and deficiencies caused by the existing farmland planting mode in the Dianchi Lake Basin, such as large surface runoff of farmland, high loss of nutrients such as nitrogen and phosphorus in runoff, and serious non-point source pollution of farmland, etc., and provides a A simple, easy-to-master and low-input planting method for controlling non-point source pollution in farmland by intercropping corn, cabbage and peas

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