Planting method for modifying desert wasteland

Abstract

The invention provides a planting method for modifying desert wasteland. The method comprises the following steps: A) applying 300-600kg of a soil conditioner, 150-200kg of a special microbial fertilizer for saline-alkali soil and 3-5m < 3 > of decomposed farmyard manure to the surface of each mu of severe saline-alkali sandy land, wherein the special microbial fertilizer for saline-alkali soil isa microbial flora screened and separated from saline-alkali soil; B) performing rotary tillage on the sandy land for 10-15cm, and uniformly mixing the soil conditioner, the special microbial fertilizer for saline-alkali soil, the decomposed farmyard manure and surface sandy soil; and C) sowing mulberry root grass, and performing irrigation, wherein the mulberry root grass is annual multi-harvesting hybrid sudangrass. According to the method provided by the invention, rapid conservation is realized through a biological enhanced decomposition technology, and the physical and chemical propertiesof the soil are adjusted; and a sandy soil healthy ecological system is constructed through a microbial technology for resisting drought, salt and alkali and promoting plant growth in combination with a scientific farming technology, so that the growth of plant root systems is promoted, the tolerance of plants to drought and salt and alkali is increased, and the plant growth is increased.

Description

technical field [0001] The invention belongs to the technical field of desert control, and in particular relates to a method for transforming desert wasteland. Background technique [0002] Desert refers to a sandy desertified land where the ground is completely covered by sand and the vegetation is very rare. One-third of the earth's land is desert. In China, the national desertified land area is 2.61 million square kilometers, accounting for 1 / 4 of the national land area; the desertified land area is 1.72 million square kilometers, accounting for nearly 1 / 5 of the national land area. The trend of desertification is still intensifying. As an extremely important environmental, social, and economical problem, desertification is plaguing the world today and threatening the survival and development of human beings. How to curb the development of desertification and how to develop and utilize desertified land are important issues in ecological environment construction and sus...

AI Technical Summary

Problems solved by technology

Extreme environmental conditions such as desert climate and soil salinization limit the growth of plants

The vast majority of economically beneficial crops cannot grow here, which hinders the governance and utilization of deserts

[0004] Most of the existing desert planting technologies only rely on the plant's own tolerance to drought and saline-alkali, and the biological improvement method of planting drought- and saline-alkali-tolerant plants

However, most crops have low tolerance to drought and salinity. Under medium and low salinity conditions, such as soil pH > 8.5, EC value > 4, or total salt content > 0.5%, the drought-resistant There are very limited varieties of crops that can produce economic benefits with saline-alkali; and under conditions of desert drought and saline-alkali stress, especially under moderate to severe saline-alkali conditions, the germination and growth of plants are greatly inhibited, and the germination rate is low. It leads to low biological (crop) yield, and it is difficult to form economic benefits in the short term; at the same time, in terms of farming techniques, simply applying conventional farming techniques, such as deep plowing and deep loosening, is not suitable for the soil characteristics of desertification

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