Straw double-layer salt control and surface ice plant desalination saline-alkali land composite improvement method

A technology for saline-alkali land and severe saline-alkali land, which is applied in the fields of land preparation methods, applications, agricultural machinery and machinery, etc., can solve the problems of no major breakthrough in the improvement of moderately-severe saline-alkali land, poor economic benefits, and long recovery period, and achieve significant economic and social benefits. , easy to implement and effective

Active Publication Date: 2018-11-06
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods all have their disadvantages. For example, irrigation and washing of saline-alkali land will waste a lot of water, and the cycle will be long, which will cause serious soil degradation; the improvement method of sand pressing will have a long cycle, and it will also destroy part of the land while improving; biological treatment of saline-alkali land The main measures are planting alkali grass, Leymus chinensis, planting willow, and using rice to control alkali, and using reed to control alkali, etc. The recovery period is long and the economic benefit is poor; the chemical control technology is to use gypsum, limestone, industrial waste and biochemical reagents. to improve
The above method can be used for the improvement of mild saline-alkali land, but there has been no major breakthrough for the improvement of medium-to-severe saline-alkali land

Method used

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  • Straw double-layer salt control and surface ice plant desalination saline-alkali land composite improvement method
  • Straw double-layer salt control and surface ice plant desalination saline-alkali land composite improvement method
  • Straw double-layer salt control and surface ice plant desalination saline-alkali land composite improvement method

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Effect test

Embodiment 1

[0035] A compound improvement method for saline-alkali land with double-layer salt control of straw and desalination of ice vegetables on the surface is carried out according to the following steps:

[0036] (1) Ditching: the depth of the ditch is 45cm, the width is 53cm, and the distance between ditches is 13cm;

[0037] (2) Straw laying at the bottom of the ditch: lay crushed corn stalks with a length of 15-20 cm at the bottom of the ditch, and the thickness after compaction is 6 cm;

[0038] (3) Overburden: Backfill the ditch soil on the straw, compact it properly, and restore it to its original state;

[0039] (4) Fertilization: the amount of organic fertilizer in mild saline-alkali land is 600 kg / mu, and the amount of compound fertilizer is 25 kg / mu; the amount of organic fertilizer in moderate saline-alkali land is 800 kg / mu, and the amount of compound fertilizer is 25 kg / mu; the amount of organic fertilizer in severe saline-alkali land is 1000 kg / mu , compound fertiliz...

Embodiment 2

[0050] A compound improvement method for saline-alkali land with double-layer salt control of straw and desalination of ice vegetables on the surface is carried out according to the following steps:

[0051] (1) Ditching: the depth of the ditch is 40cm, the width is 55cm, and the distance between the ditch is 15cm;

[0052] (2) Straw laying at the bottom of the ditch: lay sorghum straw with a length of 15-20 cm at the bottom of the ditch, and the thickness after compaction is 5-8 cm;

[0053] (3) Overburden: Backfill the ditch soil on the straw, compact it properly, and restore it to its original state;

[0054] (4) Fertilization: the amount of organic fertilizer in mild saline-alkali land is 600 kg / mu, and the amount of compound fertilizer is 25 kg / mu; the amount of organic fertilizer in moderate saline-alkali land is 800 kg / mu, and the amount of compound fertilizer is 25 kg / mu; the amount of organic fertilizer in severe saline-alkali land is 1000 kg / mu , compound fertilizer...

Embodiment 3

[0064] A compound improvement method for saline-alkali land with double-layer salt control of straw and desalination of ice vegetables on the surface is carried out according to the following steps:

[0065] (1) Ditching: the depth of the ditching is 43cm, the width is 51cm, and the distance between ditches is 11cm;

[0066] (2) Straw laying at the bottom of the ditch: lay corn stalks and rice straws with a length of 15-20 cm at the bottom of the ditch, and the thickness after compaction is 5-8 cm;

[0067] (3) Overburden: Backfill the ditch soil on the straw, compact it properly, and restore it to its original state;

[0068] (4) Fertilization: the amount of organic fertilizer in mild saline-alkali land is 600 kg / mu, and the amount of compound fertilizer is 25 kg / mu; the amount of organic fertilizer in moderate saline-alkali land is 800 kg / mu, and the amount of compound fertilizer is 25 kg / mu; the amount of organic fertilizer in severe saline-alkali land is 1000 kg / mu , comp...

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Abstract

The invention provides a straw double-layer salt control and surface ice plant desalination saline-alkali land composite improvement method which includes the steps: ditching a saline-alkali land, laying straws at the bottom of a ditch and backfilling and covering soil; applying base fertilizers, ridging the land, laying straws in furrows and planting ice plants on the furrows. Ice plant cultivation is combined with saline-alkali land improvement, and the saline-alkali land is effectively improved. A strongly saline-alkali land can be improved after 3-5 years, a moderate saline-alkali land canbe improved after 2-3 years, a slight saline-alkali land can be improved after 1-2 years, grain crops such as wheat can be normally planted on the improved saline-alkali land, and the method has great economic and social significance.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali land improvement, and in particular relates to a compound improvement method of saline-alkali land using straw double-layer salt control and surface ice vegetable desalination. Background technique [0002] The salinization of land is a worldwide ecological problem. At present, the degree of salinization of land in the world shows an obvious upward trend. Soil salinization has become an important limiting factor for the sustainable development of agriculture in the world. The area of ​​salinized cultivated land in my country is about 34.67 million hm 2 (520 million mu), ranking fourth in the world. In order to ensure the safety of food production in our country, improve the ecological environment, and realize the sustainable utilization of resources, it is imminent to accelerate the development of saline-alkali land improvement technology. Therefore, improving saline-alkali land resources ...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01B79/00
Inventor 薄录吉李彦罗加法张英鹏井永苹孙明仲子文王艳芹段刚
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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