Method for comprehensively treating saline alkali soil

A saline-alkali soil and comprehensive management technology, applied in the field of comprehensive saline-alkali soil management, can solve the problems of high cost, uneconomical economic cost, and large engineering volume, and achieve the goal of reducing salinization content, facilitating mechanized operations, and easy absorption Effect

Pending Publication Date: 2017-04-26
时成
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  • Application Information

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Problems solved by technology

The engineering quantity and cost of the guest-soil method are large, and the u...

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  • Method for comprehensively treating saline alkali soil
  • Method for comprehensively treating saline alkali soil
  • Method for comprehensively treating saline alkali soil

Examples

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Embodiment 1

[0022] Construction of saline-alkali soil control project plot: the width of the main road is 4m, the cross section of the main canal on one side of the main road is trapezoidal, the upper and lower bottoms are 120 cm, 70 cm, and the width is 80 cm, and the width of several connections on both sides of the main canal is 40 cm There are several unit fields on both sides of the branch canal, and field ridges are arranged horizontally between the unit fields. The distance from the field ridge to the branch canal is 50 m, and a branch ditch for alkali discharge is set beside the unit field on the outermost edge of the horizontal direction. , the cross-section of the alkali-discharging branch ditch is rectangular, the width is 80 cm, and the height is 50-60 cm. With the main road as the center line, it gradually decreases to both sides, forming a certain slope. The canal walls on both sides of the branch canal are surrounded by soil retaining boards, and the soil retaining boards a...

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Abstract

The invention relates to a method for comprehensively treating saline alkali soil. The method is characterized in that a method in which physical improvement and biological improvement are combined is used for treatment. According to the physical improvement, project land parcels for treating the saline alkali soil are constructed, a road is constructed in the middle, a ditch is constructed on one side of the road and provided with multiple branches for irrigation of all the land parcels, a salt and alkali discharging branch canal is arranged beside the land parcel on the outermost edge, and the branch canal is converged to a main salt and alkali discharging canal. The biological improvement includes fertilizer preparing, mellow soil insect luring, soil loosening insect killing, planting of any one of saline-alkaline resistant zizania aquatica, corn, astragalus membranaceus, liquorice and chrysanthemum in the next year and crop rotation of crop of the previous year in the third year. Project facility design is scientific and reasonable, operability is high, mechanical operation is convenient, bio-organic fertilizer is applied, soil loosening is convenient through insect luring, saline-alkaline resistant alfalfa planted in the first year returns to the field, the soil is improved, crop rotation is conducted in the second year and the third year, the content of soil salinization of a plough layer is reduced, and meanwhile great economic benefits can be generated from the crop.

Description

technical field [0001] The invention relates to the field of ecological environment treatment, in particular to a method for comprehensive treatment of saline-alkali soil. Background technique [0002] Saline-alkali land or saline soil is affected by the saline-alkali components in the soil, including various saline soils and alkaline soils and other types of soils with different degrees of salinization and alkalization. After long-term governance exploration, the following improvement methods and measures have been formed. [0003] Chemical improvement is the chemical improvement of saline-alkali land, which mainly refers to adding chemical substances to the soil to achieve the purpose of reducing soil pH, alkalization and improving soil structure. The main chemical modifiers include gypsum, phosphogypsum, desulfurized gypsum, sulfur, humic acid, furfural slag and other substances. A large number of research practices have proved that on severe saline-alkali land, the com...

Claims

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Application Information

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IPC IPC(8): A01B79/02A01B77/00A01G1/00C05F15/00
CPCA01B77/00A01B79/02A01G22/00C05F5/006C05F5/008C05F17/00
Inventor 郭华生韦应强张彦琴陈龙
Owner 时成
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