Root salt control method with ceramsite percolation layer and application of root salt control method with ceramsite percolation layer to planting melia azedarach in saline-alkali land

Abstract

The invention provides a root salt control method with a ceramsite percolation layer. The root salt control method includes the step of percolation layer laying; the percolation layer comprises ceramsite, litchi-wood active carbon, peach-shell active carbon, maize straw and Kanuma soil. The root salt control method has the advantages that the root salt control method with the percolation layer has the good improvement effect on physicochemical properties of soil in saline-alkali land; three months later, the total porosity of soil in the middle of a melia-azedarach main root is 46% to 53%, the total porosity of soil at the lower portion of the melia-azedarach main root is 49% to 55%, the salt content of the soil in the middle of the melia-azedarach main root is 0.14% to 0.19%, and the salt content of the soil at the lower portion of the melia-azedarach main root is 0.13% to 0.18%.

Description

technical field [0001] The invention relates to a root salt control method using a ceramsite percolation layer and its application in neem planting in saline-alkali land, belonging to the technical field of agricultural utilization. Background technique [0002] At present, my country's water and soil resources can only guarantee 500 million tons of grain production capacity, which is far from meeting the huge demand of the growing population. At the same time, my country's energy shortage contradiction is becoming increasingly acute, and the development of biomass energy must ensure the premise of "food security". my country currently owns coastal tidal flats with a total area of ​​nearly 40 million mu, which are important reserve land resources in my country. The development and utilization of saline-alkali soil in coastal tidal flats can not only provide food sources, but also become the production carrier of important salt-tolerant plants such as energy. [0003] From t...

AI Technical Summary

Problems solved by technology

[0006] 1. The effect of improving the physical and chemical properties of soil in saline-alkali land is poor;

[0007] 2. The salt content in the soil cannot be well controlled within the range suitable for plant growth;

[0008] 3. Poor adjustment effect on the concentration of soil ions in saline-alkali land

Most of the appearance characteristics of ceramsite are round or elliptical spheres, but there are also some gravel-like ceramsites that are not round or elliptical spheres, but irregular gravel.

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