Phosphorus non-point source pollution control method for yellow soil slope cropland oilseed rape cultivation

A non-point source pollution and control method technology, applied in the agricultural field, can solve the problems of limited effect of preventing and controlling phosphorus loss, high engineering cost of engineering measures, control of water and soil loss, etc., to change serious water and soil loss, reduce total phosphorus output, and easy to operate Effect

Inactive Publication Date: 2016-10-26
GUIZHOU INST OF SOIL & FERTILIZER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The deficiencies of the prior art: 1. The engineering cost of the engineering measures is high, and the ecological effect is poor; 2. The single horizontal slope ridge farming technology or the biological hedgerow ladder technology has limited effects on controlling soil erosion and preventing phosphorus loss

Method used

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  • Phosphorus non-point source pollution control method for yellow soil slope cropland oilseed rape cultivation
  • Phosphorus non-point source pollution control method for yellow soil slope cropland oilseed rape cultivation
  • Phosphorus non-point source pollution control method for yellow soil slope cropland oilseed rape cultivation

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Embodiment 1

[0008] Embodiment 1 of the present invention: a method for controlling phosphorus non-point source pollution of rapeseed planting on yellow soil sloping cultivated land. From 2008 to 2014, a test was carried out in Huchao Township, Huaxi District, Guiyang City, Guizhou Province. The test area is a typical southern hilly yellow soil sloping cultivated land with a slope of 15° and a southwest direction. It has a subtropical humid monsoon climate with an average annual temperature of 14.9°C, an accumulated temperature of ≥10°C of 4990, and an average annual rainfall of 1000-1150mm. The planting mode is the largest rapeseed-corn rotation planting type in the province's dry land. The rape variety is mustard type rape, and the following steps are taken: 1) Phosphorus pentoxide will be used as phosphate fertilizer, and the application rate of phosphate fertilizer will be 6kg per mu; 2) Transverse slope ridge cultivation will be adopted, with a ridge height of 20-25cm and a ridge width...

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Abstract

The invention discloses a phosphorus non-point source pollution control method for yellow soil slope cropland oilseed rape cultivation. The method includes optimized fertilization cross slope ridge culture, contour living hedgerow arrangement and straw mulching. The method is obvious in technical effect, simple and convenient in operation and high in technique integration. Shortcomings of severe water and soil loss, high runoff producing coefficient and high runoff phosphorus loss rate of a traditional cultivation method are overcome. The technique effectively controls generation of overland runoff of yellow soil slope cropland and reduces total phosphorus output; the runoff producing coefficient is 11.59% and the phosphorus loss coefficient is 0.115, which are distinctively lower than those of the traditional cultivation method. The control method provided by the invention is an effective measure for reducing agricultural phosphorus non-point source pollution risks.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a method for controlling phosphorus non-point source pollution of rapeseed planting on yellow soil sloping farmland. Background technique [0002] At present, the control technology of non-point source phosphorus runoff from sloping farmland mainly includes three measures, namely: engineering ladder technology, horizontal slope ridge farming technology or biological hedgerow ladder technology, which can reduce the amount of phosphorus loss in runoff by preventing and controlling soil erosion. The deficiencies of the existing technology: 1. The engineering cost is high and the ecological effect is poor; 2. The single horizontal slope ridge farming technology or the biological hedgerow technology has limited effects on controlling soil erosion and phosphorus loss. Therefore, just need a kind of efficient control technology to solve the problem that faces at present. Content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G1/00
CPCA01B79/02A01G22/00Y02P60/20
Inventor 范成五秦松张邦喜胡岗王文华柳玲玲刘桂华周瑞荣
Owner GUIZHOU INST OF SOIL & FERTILIZER
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