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Erosion-reducing tillage method for slope soil

A soil and slope land technology, applied in the field of agricultural measures to control soil erosion on steep slopes on the Loess Plateau, can solve problems such as the lack of technical systems and standards

Inactive Publication Date: 2010-12-15
NORTHWEST A & F UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The promotion in my country is mainly focused on the wind erosion prevention and control areas of farmland in the sandy areas of Northwest China, and there are also promotions on slopes, but there is a lack of corresponding technical systems and standards

Method used

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  • Erosion-reducing tillage method for slope soil
  • Erosion-reducing tillage method for slope soil
  • Erosion-reducing tillage method for slope soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The test site was selected on a sloping cultivated land with a slope of 12.5° (10°-15°) at the Shenmu Erosion and Environmental Experiment Station of the Institute of Water and Soil Conservation, Ministry of Water Resources, Chinese Academy of Sciences. Eight plots were set up, and soybean and millet straw mulching and plastic film were randomly set up. Mulching, ridge mulching.

[0017] 1. Straw mulching: plowing, on-demand sowing of beans, and furrow sowing of cereals, and then covering the whole stalks horizontally in the ridges of the farmland, suppressing them with scattered soil blocks, and planting crops on both sides of the ridges; the distance between the ridges is 50cm, and the width of straw coverage is 50cm. Straw consumption 3500kg / hm 2 ~4500kg / hm 2 .

[0018] 2. Film mulching: plowing, on-demand sowing of beans, furrow sowing of cereals, and 50cm of sowing behavior. Then spread the plastic film between the sowing rows, that is, planting between the film...

Embodiment 2

[0030] On slopes with a slope of 15°~20°, the straw coverage is 4500kg / hm 2 -5500kg / hm 2 , Ridge height 50cm. The rest of the steps are the same as those in Embodiment 1 and will not be repeated here.

Embodiment 3

[0032] On slopes with a slope of 20°~30°, the straw coverage is 5500kg / hm 2 -7500kg / hm 2 , Ridge height 50cm. The rest of the steps are the same as those in Embodiment 1 and will not be repeated here.

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Abstract

The invention discloses an erosion-reducing tillage method for slope soil. After the soil is turned over, seeds are sown, and then erosion of surface runoff to farmland soil is reduced by adopting a straw coverage method on a slope tillage land. The method comprises the following steps of: transversely covering the complete straws on the field ridges of the farmland, planting crops on two sides of the field ridges, covering soil on the local straws and pressing the soil. The straws have high storage quantity in rural areas, are easily obtained and can improve the physicochemical property of the soil when returned to the field. The construction project is simple, one-time construction can be reused for many years, the investment is low, and the ecological and economic benefits are remarkable.

Description

technical field [0001] The invention designs a farming method for reducing soil erosion on slope land, which is especially suitable for the field of agricultural measure control of water and soil loss on steep slope land on the Loess Plateau. Background technique [0002] Soil erosion is a global ecological environment problem. my country is one of the countries with the most serious water and soil loss. According to the second national remote sensing survey of water and soil loss, in the late 1990s, the area of ​​water and soil loss in my country was 3.56 million km 2 , of which: water erosion area: 1.65 million km 2 , especially in the Loess Plateau area located in the middle reaches of the Yellow River, the erosion is very serious, with an average annual sediment load of 1.6 billion tons. [0003] The Loess Plateau is one of the areas with the most serious water and soil erosion in the world, and it is also an ecologically and economically poor area in my country. At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00
CPCY02P60/20
Inventor 冯永忠刘强任广鑫李轶冰杨改河
Owner NORTHWEST A & F UNIV
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