Saline-alkali soil improved medicament and saline-alkali soil improved afforestation and soil preparation method

Abstract

The invention relates to a saline-alkali soil improved medicament and a saline-alkali soil improved afforestation and soil preparation method, belonging to the technical field of saline-alkali soil improved technology; the saline-alkali soil improved medicament is composed of 55-85% of acid rain water, 12-36% of nutrient component and 3-11% of synergistic component; the saline-alkali soil improved afforestation and soil preparation method comprtises the following steps: diluting the saline-alkali soil improved medicament so as to spray to the saline-alkali soil evenly; starting a first spraying 5-8 days before planting crops; loosening soil at once after spraying the saline-alkali soil improved medicament; and carrying out the operation again each two days for 2-4 times; after spraying the saline-alkali soil improved medicament, starting to carrying out afforestation and soil preparation; and reforming ground oil into mounds like an apple shape, wherein tree seedlings are planted in concave positions of the middle of the apple-shaped mounds. According to the invention, alkalinity of soil of the saline-alkali soil is neutralized; decomposition of nutrient is accelerated; effectiveness of phosphorus is improved; problems of infertile soil, a poor structure, low nursery stock survival rate or difficult survival of the nursery stock are solved; and the saline-alkali soil improved afforestation and soil preparation method is characterized by simple and easy operation, low medicament production cost and excellent effect.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali land improvement methods, and specifically relates to a saline-alkali land improvement agent and a saline-alkali land improvement afforestation and soil preparation method. Background technique [0002] Saline-alkali land is a general term for various saline soils and alkaline soils, as well as salinized and alkalized soils to varying degrees. According to the incomplete statistics of UNESCO and FAO, the saline-alkali land area in the world is 954 million hectares, and our country is about 99 million hectares, including about 37 million hectares of modern saline-alkali soil, about 45 million hectares of residual saline-alkali soil, and 17 million hectares of potential saline-alkali soil million hectares. Saline-alkali land is a part of my country's important land resources. [0003] Saline-alkali soil is a kind of low-yield soil mainly caused by alkaline damage. It and saline soil are both...

AI Technical Summary

Problems solved by technology

At high pH, ​​it can also cause direct damage to plants by hydroxide ions

Some plants accumulate too much salt, which damages the protoplasm and seriously hinders the synthesis of proteins, which leads to the accumulation of nitrogen-containing intermediate metabolites, causing damage to cells.

3) Affect the normal nutrient absorption of plants: due to the competition of sodium ions, the absorption of potassium, phosphorus and other nutrient elements by plants is reduced, and the transfer of phosphorus will also be inhibited, thus affecting the nutritional status of plants

Due to the various types of soil in saline-alkali land, the degree of occurrence is different, and the soil conditions are different. The most active factor is the movement of water and salt in the soil, which increases the difficulty of improving saline-alkali land.

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