Acidified soil carbon-based amendment and its preparation method and application

Abstract

The invention relates to an acidified soil carbon-based modifier as well as a preparation method and application thereof. The acidified soil carbon-based modifier comprises raw materials of groups A and B, wherein the raw materials of the group A contains grass carbon, biological carbon and a microbial agent, the weight ratio of the grass carbon to the biological carbon is 2:(1-4), and the weight ratio of the microbial agent to the total of the grass carbon and the biological carbon is 1:(8-30); the raw materials of the group B contains quicklime and zeolite in a weight ratio of 2:(0.5-4); and the weight ratio of the raw materials of the group A to the raw materials of the group B is 1:(0.5-20). Aiming at the mechanism that soil is acidified due to unreasonable nutrient status and long-term unreasonable fertilization of soybean continuous cropping soil in Heilongjiang province, by using the biological carbon obtained by straw carbonization, quicklime, a microelement of zinc, grass carbon and the microbial agent as main ingredients for compounding, and adopting appropriate raw materials and weight ratios, the acidified soil carbon-based modifier achieving effects of conditioning soil and providing nutrition is obtained and has the advantages of significant effect, easily-available raw materials, low production cost, capability of improving the soil fertility and the like.

Description

technical field [0001] The invention relates to a soil improver, in particular to a carbon-based improver for acidic soil improvement and its preparation method and application, belonging to the technical field of soil improver. It is mainly used in the improvement of acidified soil in Northeast acidified soil, soybean continuous cropping acidified soil and structural adjustment for planting corn. Background technique [0002] In Heilongjiang Province in recent years, due to unreasonable fertilization and monoculture of crops, especially soybean continuous cropping, the physical and chemical indicators and microbial diversity of the soil have changed, and the soil has shown acidification. Soil PH ≤ 6, 67% of soybean continuous cropping soils show zinc deficiency (area > 60%), mainly concentrated in the meadow black soil and white pulp black soil areas in the eastern and northeastern parts of Heilongjiang Province. Soil acidification refers to the process in which the bas...

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the existing soil improver patents and other technologies generally use quicklime for improvement or the raw materials are rare, the cost is high, and it is not easy to popularize. improvement