Method for carrying out raw soil greening on slight saline and alkaline land by using halophilic microorganism-containing water retaining agent

Abstract

The invention provides a method for carrying out raw soil greening on slight saline and alkaline land by using a halophilic microorganism -containing water retaining agent. The water retaining agent comprises starch, acrylic acid, acrylamide, halophilic microorganisms, soybean stalk powder, rice straw powder, elm leaf powder and walnut leaf powder. A preparation method of the water retaining agent comprises starch treatment, and treatment of every leaf powder comprises the steps of starch pasting, starch solution preparation, copolymerization reaction and product precipitation. The invention also provides an application of the water retaining agent in plantation of cherry trees in saline and alkaline land. The water retaining agent prepared in the invention has strong water absorption ability in tap water, rainwater and a 0.6% NaCl solution, the water absorption ability in the tap water can reach 950-1150 times the self weight, the water absorption ability in the rainwater can reach 820-960 times the self weight, and the water absorption ability in the 0.6% NaCl solution can reach 470-600 times the self weight.

Description

technical field [0001] The invention relates to a method of using a water-retaining agent containing halophilic microorganisms to carry out original soil greening on mildly saline-alkali land, and belongs to the technical field of landscaping. Background technique [0002] Saline-alkali soil is a general term for saline soil and alkaline soil. Saline soil mainly refers to salinized soil with high chloride or sulfate content. The soil is alkaline, but the pH value is not necessarily high. Alkaline soil refers to the soil containing carbonate or heavy phosphate, the pH value is high, the soil is alkaline, the organic matter content of saline-alkali soil is small, the soil fertility is low, the physical and chemical properties are poor, it is not easy to store water, and the anion and cation harmful to crops Many, crops are not easy to promote seedlings. [0003] Halobacteriaceae are a major group of ancient seedlings. Halobacteriaceae bacteria are respiratory metabolism, aer...

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Problems solved by technology

[0006] 1. The existing water retaining agent has poor water absorption ability in tap water, rainwater, and 0.6% NaCl solution or has good water absorption ability in tap water and rainwater, but the water absorption ability in 0.6% NaCl solution is very poor;

[0007] 2. The existing water-retaining agents have poor water-retaining ability in tap water, rainwater, and 0.6% NaCl solution, or have good water-retaining ability in tap water and rainwater, but poor water-retaining ability in 0.6% NaCl solution;

[0008] 3. The existing water-retaining agents have poor water-retaining effects on soil under different water conditions;

[0010] 5. The existing water-retaining agent has poor water-retaining ability to soil in saline-alkali land

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