Grass/white clover land degeneration degree grading method and application thereof

A grading method, the technology of white clover, applied in the field of grassland agriculture, can solve the lack of scientific, concise and practical grassland/white clover degradation degree classification method, the impact of grassland/white clover scientific management grassland grass slope improvement Efficiency and other issues

Inactive Publication Date: 2019-06-07
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far there is no systematic report and invention of the diagnostic analysis method of grass / white clover degradation degree, thus the lack of scientific, concise and practical grading method of grass / white clover degradation degree directly affects the Scientific Management of Grass / White Clover Land and Improvement Efficiency of Grass Hill and Grass Slope in Karst Mountains of South my country

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  • Grass/white clover land degeneration degree grading method and application thereof
  • Grass/white clover land degeneration degree grading method and application thereof
  • Grass/white clover land degeneration degree grading method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Overview of the test area

[0046] The research area is located in Zhuopu Demonstration Ranch in Weining County, Guizhou Province. The geographical coordinates are 104°04'48〞~104°07ˊ27〞E, 27°10ˊ33〞~27°12ˊ30N, the altitude is 2440m, and the annual accumulated temperature of ≥0℃ is 2960℃. The annual rainfall is 1023.7mm, about 90% of which is concentrated in the growing season, rain and heat are in the same season, the annual sunshine hours are 1611.4h, and the frost-free period is 182d. It belongs to the plateau mountainous karst landform and gentle hilly terrain, yellow brown soil, and the pH value is 4.5-6.5 .

[0047] (2) Plot selection

[0048] At the beginning of April 2012, the mixed perennial ryegrass, Dactylis chinensis and white clover grassland, which was established in 1985 in the research area, was selected as a graded sample area. Among them, there are 5 continuous grazing plots, each with an area of ​​0.4-0.5hm 2 , from mid-April to mid-to-late Decem...

Embodiment 2

[0060] (1) Overview of the test area

[0061] The research area is located in Liangshuigou Grassland, Yangyang Farm, Weining County, Guizhou Province. The geographical coordinates are 103°36'~104°45'E, 26°36'~27°26'N. The climate in this area is neither severely cold in winter nor extremely hot in summer. , the average annual temperature is 10-12°C, the average annual rainfall is 962mm, and the altitude is 2200m-2400m. The grassland is a mixture of perennial ryegrass, duck grass and white clover, and the soil is mainly plateau mountain yellow-brown soil, with a pH of 4.5-6.5.

[0062] (2) Plot selection

[0063] At the beginning of April 2011, the mixed grasslands of perennial ryegrass, duckweed and white clover were selected in the study area, which were planted in 1992, used for grazing before 2001, and continuously mowed, rotational grazing, and combined use of mowing and grazing after 2001. Graded plots. The area of ​​each type of grassland is selected to be about 0.5hm...

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Abstract

The invention provides a grass / white clover land degeneration degree grading method and application thereof and relates to the technical field of grassland agriculture. According to the grading method, grassland is divided into non-degraded grassland, low-grade degraded grassland, medium-grade degraded grassland and high-grade degraded grassland according to standards; particularly, grass / white clover land degeneration degree is graded by measuring annual dry matter yield of forage grass, dry matter components of sowed perennial ryegrass and orchardgrass, dry matter component of white clover,tillering density of sowed perennial ryegrass, tillering density of orchardgrass, stolon density of white clover, and pH of soil of grassland at the depth of 0-10cm. The grading method can complete grading of degeneration degree of grass / white clover land simply and practically.

Description

technical field [0001] The invention belongs to the technical field of grassland agriculture, and in particular relates to a method for grading grass / white clover degradation degree and its application. Background technique [0002] Grassland degradation and its diagnostic analysis are one of the main research contents of grassland science and ecology. To clarify the degree and characteristics of grassland degradation has important practical significance for the scientific management and utilization of grassland and the restoration and management of degraded grassland. Grass / white clover is one of the main grazing artificial grassland types in temperate regions of the world. Since the 1980s, it has been widely planted in the karst areas of southern my country. important role in environmental protection. However, after the establishment of grass / white clover grassland, due to the improper implementation of mowing and grazing utilization system and management measures, grassla...

Claims

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Application Information

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IPC IPC(8): A01G20/00A01G22/20A01C21/00A01D91/04G01N33/24
Inventor 于应文施颖王文张美艳胡廷花徐震毛文娅
Owner LANZHOU UNIVERSITY
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