A treatment method for severely salinized grassland

A salinization and grassland technology is applied in the field of governance of severely salinized grassland, which can solve the problems of immature comprehensive technology and poor effect, and achieve the effect of being beneficial to establishment and growth, broad resources and increasing fertility.

Inactive Publication Date: 2017-01-11
NORTHEAST NORMAL UNIVERSITY
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods have achieved certain results for different degraded saline-alkaline grasslands, but the comprehensive technology is not yet mature enough, and large-scale promotion is still limited by improved land conditions and capital costs.
For severely salinized grassland (pH>10, vegetation coverage less than 10%), the improvement effect of the above single method is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A treatment method for severely salinized grassland
  • A treatment method for severely salinized grassland
  • A treatment method for severely salinized grassland

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, the establishment of severe salinization grassland

[0042] (1) Planting on severely salinized grassland

[0043] (1) Selected in 2011 as figure 1 The severely salinized grassland (pH value greater than 10 and vegetation coverage less than 10%) before the experiment shown in (a) was plowed after the vegetation withered and yellowed in mid-October, as figure 1 As shown in (b), ridges and furrows are formed, the depth of plowing is 15-20cm, and the ridge width is 35cm.

[0044](2) Lay corn stalks in the furrows, and then compact the corn stalks so that the corn stalks are in full contact with the soil. The application amount of corn stalks (not crushed) per hectare of heavily salinized grassland is 8000Kg. From the winter of 2011 to the whole spring of 2012, the alternate period of freezing and thawing in winter and spring is conducive to the rot of corn stalks and can intercept the falling grass seeds.

[0045] (3) After the plants turn green around June...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a treatment method of severe salinization grassland. The treatment method of the severe salinization grassland comprises the following steps that (1) the severe salinization grassland is ploughed to form ridges and furrows; (2) corn stalks are laid in the furrows. The treatment method further comprises the step that acid fertilizer is added to the surface layer of the severe salinization grassland every year before the step (1) is conducted or after the step (2) is accomplished. The treatment method of the severe salinization grassland has the following advantages that the soil structure is changed through ploughing and covering of the corn stalks, the quantity of surface soil organic matter is increased, and the amount of evaporation of moisture on the soil surface is reduced; meanwhile, due to application of a small quantity of acid fertilizer, the salt content and the pH value of surface soil are reduced, and the soil fertility can be improved; due to covering of the corn stalks, seeds can be effectively blocked, seed germination can be promoted through improvement of soil, establishment and growth of plant root systems are facilitated, reestablishment of vegetation is facilitated, and the severe salinization grassland is treated fundamentally; the treatment cost is low, and raw materials can be easily obtained; ploughing, covering and fertilizer application are combined, so that the vegetation recovery speed is high.

Description

technical field [0001] The invention relates to a treatment method for severely salinized grassland, which belongs to the technical field of soil improvement. Background technique [0002] Soil salinization refers to the process in which the salt in the bottom soil or groundwater rises to the surface with the capillary water, and after the water evaporates, the salt accumulates in the surface soil. From a worldwide perspective, salinization is one of the most important factors limiting crop yields. The area of ​​salinization in the world has exceeded 1 billion hectares, accounting for a quarter of the land area of ​​cultivated land. China's saline-alkali soil is widely distributed, with a large area and many types, with a total area of ​​about 100 million hectares. Especially in recent years, due to the dual impact of land overuse and global change, soil salinization tends to increase and expand. In some areas, soil salinization seriously limits the development of agricult...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/00A01B79/02
Inventor 高英志何春光周道玮
Owner NORTHEAST NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products