Alkaline agricultural compound microbial improver and preparation method therefor

Abstract

The invention discloses an alkaline agricultural compound microbial improver. The alkaline agricultural compound microbial improver comprises 70-95 parts of oyster shell powder, 3-15 parts of biochemical fulvic acid, 0.1-1 part of water-retention soil-loosening agents and 1-5 parts of compound microbial agent, wherein the oyster shell powder is obtained through roasting oyster shells at the temperature of 850 DEG C to 1,000 DEG C, carrying out activating, and then, carrying out crushing. According to the alkaline agricultural compound microbial improver disclosed by the invention, the oyster shells serve as a main carrier, adsorb the microbial agent and are matched with micromolecular organic carbon nutrients such as biochemical potassium fulvate, and thus, the problem in survival of microbes is effectively solved; by adding the water-retention soil-loosening agents, soil aggregates can be increased, and soil can preserve moisture and fertility and is resistant to drought and waterlogging; meanwhile, the alkaline agricultural compound microbial improver has the effects of conditioning soil acidification, improving soil hardening, increasing the soil aggregates and increasing utilization rate of fertilizer; and a rooting zone environment of crops can be improved, the content of beneficial bacteria is increased, roots can be robust, the absorption of nutrients is promoted, the quality of fruits is improved, and the yield is increased.

Description

technical field [0001] The invention relates to the technical field of preparation of soil improvement additives, in particular to an alkaline agricultural compound microbial improver and a preparation method thereof. Background technique [0002] The normal growth and development of food and commercial crops depends on a good soil environment. The neutral soil environment is most conducive to the growth of most plants, and the overacid and overalkaline environment is not conducive to the normal growth of most plants. In the early decades of agricultural planting in China, the increase in food production mainly relied on the application of a large amount of chemical fertilizers. Excessive fertilization for a long time caused soil compaction, a decline in organic matter, a decrease in beneficial microorganisms, and soil acidification. In acidic soil, iron and aluminum oxides are obviously enriched, the cycle of biomass is very rapid, and the soil base saturation is low; and i...

AI Technical Summary

Problems solved by technology

[0005] The above compound microbial soil amendments are more suitable for primary denatured soils, and it is difficult to produce deep improvement effects when the overall soil aggregate structure is out of balance; on the other hand, it is difficult to maintain after application to the soil, and it is easy to lose after one-time application , the sustainable effect is insufficient; and the specific compound strains and the ingredients containing these need to be prepared and obtained in advance, which not only increases the cost of fertilizers, but also prolongs the production cycle of conditioners