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Method for amending deteriorated guinea grass meadow through root cutting and fertilizer application

A technology of cutting roots and grass, which is applied in the field of improvement of degraded natural Leymus chinensis meadows and grasslands. It can solve the problems of affecting the use of lawn mowers, destroying grassland vegetation, and affecting production, so as to improve the improvement effect, reduce ecological damage, and grassland damage. small effect

Inactive Publication Date: 2016-10-26
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional plowing technology is destructive to grassland soil and vegetation, which can easily cause wind erosion and water erosion, and damage grassland vegetation at the same time, seriously affecting the output of the year, and the soil turning and ridges caused by it will also affect the use of lawn mowers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The Jiangjiadian grassland in Da'an City, Jilin Province was selected as the implementation object. The geographical coordinates of the grassland are N45°31′, E123°57′, and the altitude is 135m. It belongs to the continental temperate monsoon climate. The average annual precipitation is 413.6mm, mainly concentrated in July-September. Spring is windy, dry and early, with little rain, and the frost-free period is 140 days. The soil is saline meadow soil with a pH value of 7.9-9.5. The terrain is relatively flat. The soil organic matter content is 1.22%. The available N, P and K contents are 84.6mg / kg, 3.80mg / kg and 124.3mg / kg respectively. Leymus chinensis is the dominant species of vegetation, and its grass production accounts for more than 85% of the total output.

[0024] Specifically, the Jiangjiadian grassland in Da'an City, Jilin Province was divided into three areas for improvement. In the first area, in the middle and late May, a 9QP-830 disc-toothed grassland so...

Embodiment 2

[0026] For the second area, use the 9QP-830 disc-tooth grassland soil-breaking root cutter for root cutting in the middle and late May. The root cutting depth is 12-15cm, and the length and width of the root cutting are both 35cm, in the shape of a well. Root cutting: after 25 days of root cutting treatment, adopt the mode of surface spreading to carry out fertilization treatment, and the fertilization rate is urea 155kg / hm 2 And diammonium phosphate 95kg / hm 2 ; In order to further improve the improvement effect, in the same period of time in the second year, carry out topdressing fertilizer treatment, and the application rate is urea 210kg / hm 2 And diammonium phosphate 130kg / hm 2 .

Embodiment 3

[0028] For the third area, use the 9QP-830 disc-tooth grassland soil-breaking and root cutting machine in the middle and late May. The root cutting depth is 12-15cm, and the length and width of the root cutting are both 50cm, in the shape of a well. Root cutting: After 30 days of root cutting treatment, adopt the mode of surface spreading to carry out fertilization treatment, and the fertilization rate is urea 140kg / hm 2 And diammonium phosphate 85kg / hm 2 ; In order to further improve the improvement effect, in the same period of time in the second year, carry out topdressing fertilizer treatment, and the application rate is urea 230kg / hm 2 And diammonium phosphate 140kg / hm 2 .

[0029] Above-mentioned embodiment 1-3 implements to Jiangjiadian pasture in Da'an City, Jilin Province, and its improvement effect is remarkable, and after this pasture is improved through above-mentioned method, the vegetation coverage of this pasture all can reach 100%, height can reach 53cm, and ...

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Abstract

The invention provides a method for amending deteriorated guinea grass meadow through root cutting and fertilizer application. The method comprises the specific steps: selecting a plot, which is flat in topographical feature and gently or moderately deteriorated in guinea grass biocoenosis, as an implementation object; in the second and third 10 days of May, carrying out root cutting treatment by using a meadow ground breaking and root cutting machine in a #-shaped root cutting manner, wherein the depth of root cutting is 12cm to 15cm, and the length and width of root cutting is 30cm to 50cm; 20 to 30 days after the root cutting treatment, carrying out fertilizer application treatment in a field surface broadcasting manner in accordance with the rate of fertilizer application that urea is 120kg / hm<2> to 160kg / hm<2> and diammonium phosphate is 80kg / hm<2> to 100kg / hm<2>; and in the same time period of next year, carrying out topdressing in accordance with the rate of fertilizer application that urea is 210kg / hm<2> to 230kg / hm<2> and diammonium phosphate is 130kg / hm<2> to 140kg / hm<2>. According to the method, by adopting the root cutting and fertilizer application matched method, the rejuvenation updating of guinea grass is promoted, the yield of grasses is increased rapidly, the ecological environment of the meadow is protected, the production of forage grass is promoted, and the problem in regional animal husbandry is solved.

Description

technical field [0001] The invention relates to a technology for improving degraded natural Leymus chinensis meadows and grasslands, in particular to a method for rapidly increasing the yield of forage grasses in Leymus chinensis meadows and grasslands by combining root cutting and fertilization. Background technique [0002] Leymus chinensis meadow is one of the grassland types with the widest distribution and the highest feeding value in eastern Eurasia. It is mainly distributed in Russia, North Korea, Mongolia and other countries, as well as the three northeastern provinces of my country and Inner Mongolia, Hebei, Shanxi, Shaanxi, and Xinjiang. And other provinces. Leymus chinensis grassland is an important grassland resource in the grassland area of ​​northern my country. It can be used for hay preparation and silage. It is good for both grazing and mowing. It occupies an important position in animal husbandry production. However, due to climate change and human disturba...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C21/00
CPCA01C21/00A01G22/00
Inventor 王志峰齐宝林王多佳于洪柱高阳
Owner JILIN ACAD OF AGRI SCI
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