Method for improving soil by using biological base material

Abstract

The invention provides a method for improving soil by using a biological base material and relates to the technical field of soil improvement. The method comprises the following steps: embedding two layers of pored plastic concealed pipes in the soil, conducting vertical drainage and salt-leaching, and carrying out drip irrigation and infiltrating irrigation on the soil; conducting deep tillage ofsoil for 300-500 mm with a deep tillage machine; laying a soil improvement agent on the soil, and conducting rotary tillage on the soil after laying so as to realize full mixing of the soil and the soil improvement agent, wherein the soil improvement agent comprises the following raw materials in parts by weight: 50-60 parts of limestone, 20-35 parts of humic acid, 8-15 parts of diatomite, 8-10 parts of peat soil, 2-6 parts of a clay adsorbent, 5-8 parts of montmorillonite, 3-6 parts of aluminum sulfate, 4-9 parts of ammonium ferrous sulfate, 2-5 parts of magnesium sulfate, 1-4 parts of cluster mallow fruits, 2-6 parts of caulis akebiae, 2-6 parts of semen plantaginis and 1-4 parts of herba lycopi; and applying the biological base material in the treated soil. The method for improving thesoil can prevent a salinization phenomenon of the soil, improve permeability of the soil, increase nutrients of the soil and enhance activity of the soil.

Description

Technical field [0001] The invention relates to the technical field of soil improvement, in particular to a method for improving soil by using biological base materials. Background technique [0002] In recent years, China’s agriculture has developed rapidly. With the rapid development of agriculture, people have not paid enough attention to soil improvement, which has caused a series of problems such as soil compaction, secondary salinization, nutrient imbalance, and aggravation of soil-borne diseases. Soil with a salt content of sex also has a different effect on the growth of plants. For example, when the salt content reaches 2-5g / Kg, it is difficult for roots to absorb water. When the salt content is higher than 4g / Kg, water seeps from the plant body and the growth rate decreases. Disease resistance is weakened, which can lead to plant death in severe cases, unbalanced soil nutrients will cause plant deficiency or poisoning, and severe soil compaction will cause crop failure....

AI Technical Summary

Problems solved by technology

[0002] In recent years, my country's agriculture has developed rapidly. With the rapid development of agriculture, soil improvement has not attracted enough attention, resulting in a series of problems such as soil compaction, secondary salinization, nutrient imbalance, and aggravation of soil-borne diseases. At the same time, differences Soil with high salt content also has differential effects on plant growth. For example, when the salt content reaches 2-5g / Kg, it is difficult for the root system to absorb water. When it is higher than 4g / Kg, the water in the plant will seep out and the growth rate will decrease. The disease resistance is weakened, which can lead to plant death in severe cases. The imbalance of soil nutrients will cause plant deficiency or poisoning, and severe soil compaction will cause crop failure, etc.

[0003] With the rapid development of industrialization and urbanization in our country, improper treatment and massive discharge of pollutants have led to the increasingly prominent problem of heavy metal pollution in farmland soil in my country. The accumulation of heavy metals in farmland soil not only leads to a decrease in crop yield, but also makes crops continue to Absorb heavy metals, and heavy metals can enter the human body through the food chain. In addition, heavy metals in the soil can also enter the groundwater through the water cycle, and enter the human body through drinking water. Since the human body has a weak excretion of heavy metals, long-term consumption or drinking of food and water contaminated by heavy metals will cause Causes the accumulation of heavy metals in the human body, seriously endangering human health