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Mixed sowing artificial grassland planting method under desertification grassland dry farming condition

A grassland and conditional technology, which is applied in the fields of botany equipment and methods, plant cultivation, leguminous plant cultivation, etc., can solve the problems of serious grassland desertification, mixed-seeding artificial grassland and other problems, and achieve biomass improvement and grassland coverage. The effect of enhancement, richness enhancement

Inactive Publication Date: 2018-10-19
WUXI MISHO ECOLOGY LANDSCAPE
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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 method for establishing and planting mixed-sowed artificial grassland under dry-farming conditions in sandy grasslands, which is used to overcome the above-mentioned technical defects and solve the problems of difficulty in establishing and planting mixed-sowed artificial grasslands and increasingly serious grassland desertification under dry-farming conditions in sandy grasslands.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: Kubuqi Sandy Land is located about 5km south of Dalat Banner, Ordos City, Inner Mongolia, between the Yellow River Valley and the Ordos Plateau. The altitude is about 1100m, the annual average temperature is 6.1°C, the lowest temperature is -32.3°C, and the highest temperature is 38.3°C; the average annual precipitation is about 310mm, mostly concentrated in July, August, and September, and the annual evaporation is 2130.2mm; the frost-free period is 156 days. The phenomenon of wind erosion and desertification is serious, and there is a large area of ​​quicksand distribution around; the groundwater level is high, the soil type is grassland aeolian sandy soil, and the fertility is low; the vegetation types are relatively poor, mainly artemisia orientalis.

[0013] Sowing begins in late June, with alfalfa, lentil beans, Davuri twigs, and wheatgrass mixed in a weight ratio of 1:1:2:4. The sum of the amount of clumps. The appropriate amount of fertilization i...

Embodiment 2

[0014] Embodiment 2: Horqin sandy land is located in the northeast of Chifeng City, Inner Mongolia Autonomous Region, a semi-arid area. The average annual precipitation is 300-400mm, mostly concentrated in July, August and September, accounting for about 70%-80% of the annual precipitation; the soil type is mainly aeolian sandy soil with low fertility; Cong and Chinese pine plantations are the main ones.

[0015] Sowing began in early July, and mixed sowing of alfalfa, flat clover beans, Dauri twigs, and wheatgrass at a weight ratio of 0.8:1.2:1.8:3.6. The appropriate amount of fertilizer for mixed sowing is: urea 250kg / hm 2 , superphosphate 440kg / hm 2 , potassium sulfate 110kg / hm 2 . Wheatgrass turns green first, followed by alfalfa, and finally Dauri twigs and clover beans. The richness of grassland species increased by 47.6%, and the density increased by 8 species / m 2 , biomass increased by 40.1%, and grass coverage increased by 80%.

Embodiment 3

[0016] Example 3: Hulun Buir Sandy Land, located in the Hulun Buir Plateau in the northeast of Inner Mongolia. The eastern part is the hills at the western foot of the Greater Khingan Mountains, the west is facing the Dalai Lake and the Kherlen River, the south is connected to Mongolia, and the north reaches the north bank of the Hailaer River. The climate has the transitional characteristics of semi-humid and semi-arid. The annual average temperature is low, 2.5-0°C; the average annual precipitation is 280-400mm, mostly concentrated in summer and autumn, and the annual evaporation is 1400-1900mm; the frost-free period is 90-100d; It is mainly distributed in the sandy belt and its surrounding sandy plains; the vegetation types are mainly gramineous.

[0017] Sowing starts in early July, and alfalfa, flat clover beans, Davuri twigs, and wheatgrass are mixed at a weight ratio of 1.2:0.8:2.3:4.3. The sum of the amount of clumps. The appropriate amount of fertilizer in mixed sow...

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Abstract

The invention relates to a planting method of artificial grassland, in particular to a mixed sowing artificial grassland planting method under a desertification grassland dry farming condition. When sowing is conducted under the desertification grassland dry farming condition, leguminosae plants and gramineae plants are subjected to mixed sowing, wherein medicago sativa, medicago ruthenica, lespedeza davurica and agropyron cristatum are subjected to mixed sowing according to the weight ratio of 0.8-1.2 to 0.8-1.2 to 1.6-2.4 to 3.2-4.8; during mixed sowing, the appropriate fertilizing amount ofurea is 250-270 kg / hm<2>, the appropriate fertilizing amount of calcium superphosphate is 440-460 kg / hm<2>, and the appropriate fertilizing amount of potassium sulphate is 110-130 kg / hm<2>. Accordingto the mixed sowing artificial grassland planting method under the desertification grassland dry farming condition, by reasonably matching the leguminosae plants and the gramineae plants, mixed sowing artificial grassland containing medicago sativa, medicago ruthenica, lespedeza davurica and agropyron cristatum is formed, therefore, different kinds of grassland vegetation are combined, soil fertility can be effectively improved, the soil quality is improved, the desertification degree of desertification grassland is reduced, and thus the environment quality is improved.

Description

technical field [0001] The invention relates to a planting method of artificial grassland, in particular to a planting method of mixed sowing artificial grassland under the condition of desertified grassland and dry farming. Background technique [0002] China has nearly 400 million hm2 of various types of grasslands, ranking second in the world, accounting for about 41.7% of the country's land area. The country can be divided into six grassland areas (Northeast Pastoral Area, North China Pastoral Area, Northwest Pastoral Area, Qinghai-Tibet Pastoral Area, Southwest Pastoral Area, and Southern Pastoral Area), of which North China, Northwest China, and Qinghai-Tibet are the most severely desertified, accounting for 43.9% of the country's desertified land area %, and continue to expand at a rate of 2 million hectares per year. [0003] Although the state has increased investment in recent years and implemented a series of grassland ecological management and protection project...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G22/40A01G22/00
CPCA01G22/40A01G22/00
Inventor 刘雪王莹李懿玮
Owner WUXI MISHO ECOLOGY LANDSCAPE
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