Grassland patch sandy land restoration method

A repair method and patch technology, applied in land preparation methods, botanical equipment and methods, lawn growth, etc., can solve the problems of dynamic adjustment of the degree of inability to degrade, consuming manpower, material resources and time, and lack of targeted repair. Conducive to the effect of rapid promotion in large areas, improving fertility and avoiding soil erosion

Inactive Publication Date: 2021-02-12
GRASSLAND RES INST OF CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned control methods are relatively simple and have a long cycle, and cannot be dynamically adjusted a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for repairing grassland patch sandy land, comprising the following steps:

[0031] (1) Select the patchy sandy land of the grassland, use the rotary tiller to carry out shallow plowing, the depth is 10cm, and then adopt the method of engineering fence to realize the enclosure treatment of the patchy sandy land;

[0032] (2) Apply a soil finishing agent on the patchy sand treated in step (1), the dosage is 400kg / mu, and the soil finishing agent is composed of the following raw materials in parts by weight: 60 parts of straw, 50 parts of biochar, humic acid 40 parts, 20 parts of urea, 15 parts of potassium dihydrogen phosphate, 40 parts of soil seepage, 10 parts of water retaining agent, 4 parts of sodium selenite; stand for 14 days;

[0033] (3) Vibrating and subsoiling the plaque sand land after step (2) processing, the subsoiling frequency is 9.5Hz, the amplitude is 20mm, and the depth is 50cm;

[0034] (4) select the grass species of leguminous plants and gr...

Embodiment 2

[0039] A method for repairing grassland patch sandy land, comprising the following steps:

[0040] (1) Select the patchy sandy land of the grassland, use the rotary tiller to carry out shallow plowing, the depth is 7cm, and then adopt the method of biological fence to realize the enclosure treatment of the patchy sandy land;

[0041] (2) Apply a soil finishing agent on the patch sandy land treated in step (1), the dosage is 300kg / mu, and the soil finishing agent is composed of the following raw materials in parts by weight: 40 parts of straw, 40 parts of biochar, humic acid 30 parts, 15 parts of urea, 15 parts of potassium dihydrogen phosphate, 60 parts of soil seepage, 5 parts of water retaining agent, 3 parts of sodium selenite; stand for 12 days;

[0042] (3) carry out vibratory subsoiling treatment to the plaque sand land after step (2) process, subsoiling frequency is 8.0Hz, amplitude is 30mm, and depth is 40cm;

[0043](4) choose the grass seed of the leguminous plant o...

Embodiment 3

[0048] A method for repairing grassland patch sandy land, comprising the following steps:

[0049] (1) Select the patchy sandy land of the grassland, use the rotary tiller to carry out shallow plowing, the depth is 6cm, and then adopt the method of engineering fence to realize the enclosure treatment of the patchy sandy land;

[0050] (2) Apply a soil finishing agent on the patchy sand treated in step (1), the dosage is 200kg / mu, and the soil finishing agent is composed of the following raw materials in parts by weight: 50 parts of straw, 50 parts of biochar, humic acid 30 parts, 16 parts of urea, 12 parts of potassium dihydrogen phosphate, 50 parts of soil seepage, 8 parts of water retaining agent, 3 parts of sodium selenite; stand for 11 days;

[0051] (3) Vibrating and subsoiling the patch sand after step (2) processing, the subsoiling frequency is 8.9Hz, the amplitude is 25mm, and the depth is 45cm;

[0052] (4) choose the grass seed of the leguminous plant of weight rati...

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PUM

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Abstract

The invention provides a grassland patch sandy land restoration method. Shallow ploughing, soil preparation and vibration deep scarification treatment are conducted on patch sandy land, the soil physical structure of the patch sandy land is improved, the fertility and the moisture and water retention performance of the patch sandy land are improved, the severe drought environment of grassland canbe resisted, and growth of forage grass is promoted; and meanwhile, various components are applied to a soil finishing agent, through reasonable matching of the various components, rapid adjustment ofa grassland patch sandy land soil physical structure, reconstruction of micro-ecological bacterial colonies and rapid restoration of soil fertility are achieved, the soil finishing agent can be suitable for subsequent germination and growth of forage grass seeds, water and soil loss is avoided, the patch sandy land can be restored in a short time, and large-area rapid popularization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of grassland degradation restoration, and in particular relates to a restoration method of grassland patch sandy land. Background technique [0002] my country's grassland area is about 400 million hectares, accounting for 40.7% of the country's land area. It is the largest terrestrial ecosystem and the most important green ecological barrier. It is also an important support for the basic production and living materials of farmers and herdsmen. However, about 90% of the usable grasslands have been degraded to varying degrees due to irrational grazing systems, blind reclamation, excessive firewood harvesting and other human reasons, as well as natural disasters such as seasonal droughts and pests and diseases caused by climate change. The main manifestations of grassland degradation are the reduction of grassland vegetation coverage, the change of plant community structure, the reduction of species diversity,...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01G20/00C05G3/80
CPCA01B79/02A01G20/00C05B7/00C05G3/80C05C9/00C05D9/00C05D9/02C05F11/00C05F11/02Y02P60/20
Inventor 纪磊丁勇金轲吴尧张勇王珍唐士明张玉娟张雄
Owner GRASSLAND RES INST OF CHINESE ACAD OF AGRI SCI
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