Method for improving productivity of leymus chinensis grassland

A productivity and sloppy technology, applied in fertilization methods, gardening methods, lawn growth, etc., can solve the problems of grassland degradation and productivity decline of Leymus chinensis in Songnen Plain

Pending Publication Date: 2021-07-06
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

[0003] The present invention provides a method for improving the productivity of Leymus chinensis grassland in order to solve the problem that the existing Songnen Plain Leymus chinensis grassland is seriously degraded and the productivity drops significantly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Specific embodiment one: the method for improving the productivity of Leymus chinensis grassland in this embodiment is: apply nitrogen fertilizer containing 4-10kg of pure nitrogen per mu to the grassland of Leymus chinensis to be restored, and spray 20-30ml of plant biostimulant, that is, increase the yield of Leymus chinensis. ground productivity.

[0010] In this embodiment, after Leymus chinensis turns green in spring, nitrogen fertilizer containing 4-10kg of pure nitrogen (urea with 46.4% nitrogen content) is applied per mu. It can be applied before natural precipitation. In places with irrigation conditions, it is recommended to replenish water and increase efficiency after fertilization. Nitrogen fertilizer can be applied in a large area on the grassland with a granular fertilizer applicator for dry fields.

[0011] In this embodiment, the plant biostimulant can be applied in the evening when there is no direct sunlight and no wind. The plant biostimulant is dilu...

specific Embodiment approach 2

[0012] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the plant biostimulant is diluted 1000 times with water and sprayed on the leaves. Other steps and parameters are the same as those in the first embodiment.

Embodiment 12019

[0013] Example 1 In 2019, the method of the present invention was used to improve the production capacity of Leymus chinensis at the Da'an Alkaline Land Ecological Experiment Station of the Chinese Academy of Sciences in Da'an City, Jilin Province

[0014] The method for improving the production capacity of Leymus chinensis meadow is as follows: apply nitrogen fertilizer containing 10 kg of pure nitrogen per mu of Leymus chinensis grassland to be restored, and spray 24 ml of biostimulant. The nitrogen fertilizer is urea, and the application amount of urea is 21.6 kg.

[0015] details as follows:

[0016] After Leymus chinensis turns green in 2019, spread urea (21.6kg per mu) evenly on the grassland of Leymus chinensis; in the evening when there is no direct sunlight and no wind, dilute the biostimulant (24ml per mu) with water 1000 times before applying Foliar spray. Grassland management is carried out according to local conventional methods until the Leymus chinensis is mowe...

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Abstract

The invention discloses a method for improving the productivity of leymus chinensis grassland, and relates to a method for rapidly improving the grassland productivity. The problems that the Leymus chinensis grassland in the existing Songnen plain is seriously degraded, and the productivity is remarkably reduced are solved. The method comprises the following steps that 20-30ml of biostimulant is sprayed on each mu of leymus chinensis grassland to be recovered, wherein the leymus chinensis grassland contains 4-10kg nitrogenous fertilizer of pure nitrogen; and after the special fertilizer is applied for 3 months, the net productivity of leymus chinensis on the ground can reach 351-371 kg per mu, and the yield is increased by 51.1%-59.8%. The problems that the Leymus chinensis grassland in the Songnen plain is seriously degraded and the productivity is obviously reduced are solved.

Description

technical field [0001] The invention relates to a method for rapidly improving grassland productivity. Background technique [0002] Leymus chinensis is a high-quality gramineous forage grass and an important construction species widely distributed in the Songnen Plain in Northeast China. It has excellent characteristics of salt and alkali resistance, poor soil resistance, rich nutrition, good palatability, and high economic value. In recent years, due to unreasonable development and utilization such as overgrazing and continuous mowing, the soil nutrients of Leymus chinensis have been rapidly consumed, vegetation has been seriously degraded, and productivity has dropped significantly. If certain measures are not taken to restore and improve the productivity of Leymus chinensis, not only will the The healthy development of grassland animal husbandry, and the ecological service function of grassland will continue to decline. Therefore, it is a difficult task to rapidly incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G20/00A01G7/06A01C21/00
CPCA01G20/00A01G7/06A01C21/00
Inventor 梁正伟刘淼杨昊谕王明明魏天娇
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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