Saline alkali soil amendment

Abstract

A related saline alkali soil amendment comprises, in parts by weight, 5-50 parts of weathered coal, 10-12 parts of ricinus communis shell, 12-16 parts of straw, 7-10 parts of rock phosphate powder, 16-18 parts of a fertilizer, 3-5 parts of an adhesive and 2-4 parts of a water-retaining agent. The fertilizer comprises the following raw materials in parts by weight: 55-66 parts of urea, 15-18 parts of ammonium ferrous sulfate, 10-12 parts of aluminum sulfate, 3-5 parts of chelated iron, 3-5 parts of chelated boron and 3-5 parts of chelated zinc. Compared with the prior art, the saline alkali soil amendment is capable of improving soil saline-alkali property, retaining water and providing plant nutrients.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to a saline-alkali soil improver. Background technique [0002] The harm of saline-alkali land to plants mainly includes the following aspects: First, it causes physiological drought of plants. Excessive soluble salts can increase the osmotic pressure of the soil solution, cause physiological drought of plants, and prevent roots and seeds from germinating from the soil. It can absorb enough water in the soil, and even cause the water to seep out from the root cells, causing the plants to wilt or even die; the second is to harm the plant tissue, and the excessive accumulation of salt in the topsoil in the dry season can easily damage the hypocotyl. It will cause direct poisoning of OH to plants, excessive accumulation of salt in plant tissues will damage protoplasm, hinder protein synthesis, accumulate nitrogen-containing intermediate metabolites, and cause cell poisoning; t...

AI Technical Summary

Problems solved by technology

[0002] The harm of saline-alkali land to plants mainly includes the following aspects: First, it causes physiological drought of plants. Excessive soluble salts can increase the osmotic pressure of the soil solution, cause physiological drought of plants, and prevent roots and seeds from germinating from the soil. It can absorb enough water in the soil, and even cause the water to seep out from the root cells, causing the plants to wilt or even die; the second is to harm the plant tissue, and the excessive accumulation of salt in the topsoil in the dry season can easily damage the hypocotyl. It will cause direct poisoning of OH to plants, excessive accumulation of salt in plant tissues will damage protoplasm, hinder protein synthesis, accumulate nitrogen-containing intermediate metabolites, and cause cell poisoning; the third is to affect the normal nutrient absorption of plants, due to the exchange of Na The competition of + reduces the absorption of potassium, phosphorus and other nutrient elements by plants, and the transfer of phosphorus will also be inhibited, thus affecting the nutritional status of plants; the fourth is to affect the opening and closing of stomata of plants. Under the action of high-depth salts, Starch synthesis in the stomatal guard cells is hindered, so that the cells cannot be closed, and the plants are prone to drought and wilting