Seashore saline land improver, preparation method of seashore saline land improver and seashore saline land improvement method

Abstract

The invention discloses a seashore saline land improver, a preparation method of the seashore saline land improver and a seashore saline land improvement method. The seashore saline land improver comprises the following components in parts by mass: 5-20 parts of industrial waste gypsum, 0.2-1 part of monosodium glutamate waste residue, 30-60 parts of plant waste ground and decomposed material, 0.01-1 part of anionic polyacrylamide and 5-15 parts of bacillus flora. The seashore saline land improver is applicable to seashore saline areas in both north and south China and can rapidly improve the saline land within 50-70 days, and the salinity of the saline land is reduced to a concentration suitable for plant growth. Moreover, the improver has excellent fertilizer maintenance and salinity reduction effects and can achieve the effects of improving the pore structure of soil and reducing the volume weight of soil.

Description

Technical field [0001] The invention relates to the technical field of soil improvement, in particular to a coastal saline-alkali soil improver, a preparation method thereof and a coastal saline-alkali soil improvement method. Background technique [0002] my country’s coastal saline-alkali land now has a coastline of about 18,000 km, which has a wide distribution area. The coastal saline soil, tidal flat and shallow sea within the 15m isobath in the coastal area have 14 million hm 2 , Accounting for nearly 40% of the total area of ​​saline soil in my country. Coastal saline-alkali soils are mainly distributed in the eastern coastal areas of the North China Plain, such as Liaodong Bay, Bohai Bay, Laizhou Bay and coastal areas of Jiangsu and Zhejiang. Among them: the coastal saline soils of Jiangsu, Shandong, Hebei and Liaoning provinces north of the Yangtze River estuary have an area of ​​1 million hm 2 The area of ​​coastal saline soil in Zhejiang, Fujian, Guangdong, Guangxi, Ha...

AI Technical Summary

Problems solved by technology

At present, there are many types of chemical amendments on the market, and the ingredients are relatively single, which has the following disadvantages: first, the cost of the improved materials is high; At the same time, the phenomenon of anti-saline-alkali soil after improvement is serious. Third, there are differences in the salinity categories of saline-alkali soils in the north and south coastal areas. At present, there is no general-purpose composite improver suitable for the saline-alkali areas in the north and south coastal areas of my country.

[0006] To sum up, in view of the differences in the classification of saline-alkali soil in the north and south of my country's coastal areas, in order to solve the contradiction between the single composition of traditional chemical amendments and the poor sustainability of the improvement effect and the slow effect of biological improvement but the long-lasting effect of the improvement and the improvement of coastal saline-alkali soil soil Fertilization and other issues, the development of a general-purpose compound improver suitable for saline-alkali soil improvement in the north and south coastal areas of my country is of great significance for reducing the cost of coastal saline-alkali soil improvement and commercializing it

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