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Combined cultivation method for water and soil conservation for sloping farmlands

A combined method and technology for sloping farmland, applied in the field of soil and water conservation farming, can solve problems such as unsatisfactory water storage and water retention effects, and achieve the effects of maintaining moisture and water use efficiency, reducing runoff, and reducing surface runoff

Inactive Publication Date: 2012-06-20
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a combined tillage method for water and soil conservation in sloping farmland in order to solve the problem of unsatisfactory water storage and water conservation effects of the current single tillage technique

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific implementation mode one: the tillage combination method of soil and water conservation in sloping cultivated land of the present embodiment is realized according to the following steps:

[0015] 1. Adjust the ridge direction of the sloping farmland cultivated along the slope and slope to the horizontal slope ridge according to the contour line, and adopt contour cultivation and strip planting; 2. Build the ridge: along the contour line, according to the multiple of the sowing width of the mechanical tillage Build ridges and plant belts of ridge-protecting plants on the ridges; 3. Subsoiling: deep plowing in autumn every 3 years, and implement subsoiling in ridges and furrows every year at the seedling stage; Field plows, mechanically build soil ridges along the furrows at an interval of 60-200cm; 5. No-tillage conservation tillage: no-tillage conservation tillage on slopes greater than 3°, that is, to complete the farming combination of soil and water conservati...

specific Embodiment approach 2

[0026] Specific implementation mode two: the difference between this implementation mode and specific implementation mode one is that the adjustment of the ridge direction in the step 1 is the principle that the horizontal slope ridge should be followed: ① According to different terrain, soil quality, slope and climatic conditions, cultivate the along slope and slope ridges The sloping cultivated land shall follow the contour line, and the big bends shall be in position, and the small bends shall be straight, so that the ridges can be adjusted to be horizontal slope ridges conveniently for mechanical tillage operations; Use; ③ To change the original along-slope ridges and slope ridges into cross-slope ridges, deep plowing and raking should be carried out first. Dwarf crop intercropping. Other steps and parameters are the same as those in Embodiment 1.

[0027] The method of adjusting the direction of the ridges in this embodiment can effectively control the soil and water los...

specific Embodiment approach 3

[0028] Specific implementation mode three: the difference between this implementation mode and specific implementation mode one is the principles that should be followed in building the ridge in step two: 1. the ridge-protecting plant belt is suitable for 3 ° ~ 5 ° slope farmland; 2. the ridge-protecting plant belt should be along the The high line is laid out, and the distance between the ridges is arranged according to the multiples of 38-42m of the sowing width of the machine; ③The construction of the ridges should meet the following requirements: a. The top width of the ridge is 30-50cm, the height of the ridge is 50-60cm, and the ratio of inner and outer slopes is 1:0.5 B. If the water line is hollow, the ridge should be properly heightened and compacted; ④ after the ridge is completed, a ridge-protecting plant belt should be planted on the ridge; Osmanthus osmanthus, Malian or day lily; sowing amount or row spacing: the sowing rate of clover or sweet clover on the ridge i...

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Abstract

A combined cultivation method for water and soil conservation for sloping farmlands relates to cultivation methods for water and soil conservation and solves the problem that using the single cultivation technique for holding water is unsatisfactorily effective. The combined cultivation method includes: firstly, adjusting ridges of sloping farmlands on downward slopes and inclined slopes under ridge plowing adjusted into transverse slope ridges, and adopting contour farming and belt planting; secondly, building ridges, and planting protective plant belts on the ridges; thirdly, subsoiling forfarming; fourthly, performing furrow damming; and fifthly, performing no-tillage conservation tillage. Furrow subsoiling and furrow damming are technically combined and integrated according to soil and weather characteristics of a black soil area, so that water and soil loss is reduced or avoided for sloping farmlands to the greatest extent, water and soil are conserved, water utilization rate isincreased, and crop yield is increased evidently. By the method, soil saturation and infiltration speed ratio is increased by 24.1% in processing treatment, water utilization rate is increased by more than 15%, crop yield is 30kg per mu, and 100 Yuan per mu is increased..

Description

technical field [0001] The invention relates to a farming method for water and soil conservation. Background technique [0002] About 24 billion tons of topsoil are lost every year in the world, equivalent to 9.6 million hectares of land (Bakker, 1990). The amount of soil lost in my country reaches 5 billion tons every year, accounting for about 1 / 5 of the annual loss in the world. Soil degradation due to wind and water erosion, salinization, reduction of organic matter and its compaction is a concern in agricultural production areas worldwide. [0003] The current soil erosion area in the black soil area of ​​the Songnen Plain is 2.74 million hectares, accounting for 37.7% of the total black soil area, of which the eroded area of ​​slope farmland is 2.33 million hectares, accounting for 85% of the black soil erosion area. Therefore, preventing soil erosion and wind erosion and maintaining soil fertility have important practical and long-term significance for improving the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
Inventor 韩秉进刘洪家陈渊朱向明
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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