Tea garden acidified soil conditioner, preparation method thereof and soil conditioning method

Abstract

The invention relates to the technical field of soil improvement, in particular to a tea garden acidified soil conditioner, a preparation method thereof and a soil conditioning method. The tea garden acidified soil conditioner is prepared from the following raw materials in parts by weight: 100 parts of a mixture and 0.5-2 part of a nitrification inhibitor, wherein the mixture is prepared by mixing the following raw materials in percentage by weight: 40-60% of biomass charcoal and 40-60% of dolomite powder. Based on the characteristics of tea garden acidified soil salt-based ion loss, soil available calcium and magnesium deficiency, soil cation exchange capacity reduction, soil fertilizer and water retention capacity reduction and tea tree growth restriction, biomass charcoal is used for improving the tea garden soil fertilizer and water retention capacity, and dolomite powder and other substances are used for improving the tea garden soil salt-based saturation degree; tea garden acidified soil is effectively improved, and tea tree growth is promoted.

Description

Technical field[0001]The present invention relates to the field of soil improvement techniques, and more particularly to a method of acidification soil conditioning agent and preparation method thereof and a method of regulating soil.Background technique[0002]Tea trees are important economic crops in my country, soil is the foundation of tea tree growth. Due to the unreasonable application of long-term fertilizers and the influence of tea tree self-substance circulation metabolism, the tea garden soil continuously presents acidification. Tea garden soil acidification, seriously affecting the absorption of nutrients and restricting tea trees.[0003]Soil acidification process is soil acceptance h+After that, on the one hand h+The reaction reaction is attached to the surface of the soil particles with the soil colloid, and the salt-based cation which is exchanged with leakage is leaked; on the other hand, the Hoi surface+It also spontaneously converts the aluminum reaction from the surf...

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Problems solved by technology

At present, a large number of literatures have used calcareous materials (lime, dolomite powder, etc.) to improve acidified soil in tea gardens. However, since calcareous materials only supplement the calcium and magnesium ions lost by the soil, although the soil pH has increased to a certain extent, it is easy to cause soil compaction and promote Soil nitrification reduces the absorption of nitrogen by tea trees; in recent years, there are also a large number of literatures that use biochar to improve acidified tea garden soil, and have achieved certain effects in improving soil CEC and pH. However, the mechanism of biochar to improve acidified soil is mainly Acid-base neutralization and supplementation of a certain amount of basic ions, the supplementary basic ions are easy to lose, and the duration of soil improvement is short; and the density of biochar is small, the amount of application per mu is measured in tons, and the application cost is high. On the one hand, it only stays in the laboratory stage; at the same time, after the application of biochar, it greatly promotes soil nitrification, which affects the growth of tea trees that prefer ammonium nitrogen, forming soil improvement, but the quality and efficiency of tea are not improved.

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