Saline-sodic land reclamation and control method

A saline-alkali land and soil technology, which is applied in the field of saline-alkali land improvement and management, can solve the problems that it is difficult to meet the needs of salt pressing, cannot achieve satisfactory results, and is difficult to promote in a large area, so as to improve economic and social benefits and improve Agricultural labor productivity and the effect of increasing farmers' income

Inactive Publication Date: 2009-11-18
王彤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, extensive and in-depth research has been carried out on the improvement of saline-alkali land at home and abroad, mostly focusing on engineering measures and less application of biotechnology. Although some achievements have been made, there are some insurmountable difficulties: ①The engineering cost is expensive; ②Soil The improvement is effective but not lasting; ③The nutrients in the soil are drained along with the salt after flushing with fresh water; ④Insufficient fresh water resources, it is difficult to meet the demand for pres

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1:

[0023] The improvement and treatment methods of saline-alkali soil include: omnibearing deep loosening, applying soil loosening agent and saline-alkali soil amendment to the deep loosening soil, applying microbial organic fertilizers according to the tested soil components, and using nutrients Balance method and nitrogen, phosphorus, and potassium ratio method: use the fertilizer requirement of the target yield to reduce the amount of soil fertilizer, and the difference is supplemented by fertilization, and then through the high platform ridge, drainage and salt control, and then through the planting of green manure---salt tolerance The alkali high-yield forage crop Jerusalem artichoke thoroughly improves the soil.

Example Embodiment

[0024] Example 2:

[0025] In the improvement and treatment method of saline-alkali soil described in embodiment 1, the omni-directional deep loosening is: the deep loosening machine is hauled by a high-horsepower tractor, and the deep loosening shovel penetrates into the soil 50cm through two cuts in the horizontal and vertical directions. .

Example Embodiment

[0026] Example 3:

[0027] In the method for improving and treating saline-alkali soil described in embodiment 1 or 2, the soil loosening agent includes: ferrous sulfate: magnesium silicate: water = 5:3:4, and the pH value of the soil is 7-8 When applying soil loosening agent 25KG per mu; PH value of 8-9, applying soil loosening agent 40KG per mu; PH value of 9-10, applying soil loosening agent 50KG per mu.

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PUM

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Abstract

The invention relates to a saline-sodic land reclamation and control method. Wide and deep research is long developed on the reclamation of saline-sodic land at home and abroad, and more focuses on engineering measures than applies biological techniques; although achievement has been made, some insurmountable difficulties still exist. The saline-sodic land reclamation and control method comprises the following steps: bulk deep loosening, applying soil deep loosening agents and saline-sodic soil improvement agents to deep loosening soil, purposefully and proportionally applying biologically organic fertilizer according to the composition of soil detected by adopting a nutrient balance method and a nitrogen phosphorus and potassium proportioning method which both comprise the following steps: subtracting soil nutrient-supplying amount from the fertilizer requirement of target yield, supplementing the balance through fertilizing, hathpace ridge forming, draining water and controlling salt, planting green manure-saline alkali tolerant high-yielding grass crop jerusalem artichoke to thoroughly improve the soil.

Description

Technical field: [0001] The invention is a method for improving saline-alkali soil. Background technique: [0002] For a long time, extensive and in-depth research has been carried out on the improvement of saline-alkali land at home and abroad, mostly focusing on engineering measures and less application of biotechnology. Although some achievements have been made, there are some insurmountable difficulties: ①The engineering cost is expensive; ②Soil The improvement is effective but not sustainable; ③The nutrients in the soil are drained along with the salt after flushing with fresh water; ④Insufficient fresh water resources are difficult to meet the demand for salt suppression. A lot of manpower and material resources have also been invested. Although certain results have been achieved, the cost performance is not high, and it is difficult to promote it on a large scale. The causes of saline-alkali soil in different parts of the world are different, the soil nutrients are d...

Claims

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Application Information

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IPC IPC(8): A01B79/00A01B77/00A01C21/00B09C1/08C09K17/40
CPCY02A40/10
Inventor 王彤
Owner 王彤
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