A compound microbial granular fertilizer containing medium and trace elements and its production process

Abstract

The invention discloses a compound microbial granule fertilizer containing medium and trace elements, which comprises the following components in parts by weight: 50-90% of medium and trace elements, 0.2-5% of compound microbial bacterial agent, and 8-12% of binder; Trace elements are monohydrate or anhydrous compounds. The present invention utilizes medium and trace elements to provide abundant soil scarce nutrients, compound microorganisms provide an excellent root micro-ecological environment, secrete auxin accumulation substances, and further promote the absorption of large, medium and trace elements by crops. The ratio of nutrients is reasonable, and the fertilizer efficiency is high. Significantly improve the fertilizer absorption level of crops, reduce production costs, overcome various crop deficiency symptoms, root system disease resistance, weak resistance to stress and other problems, enhance crop resistance, and improve yield and quality. The granulation process makes full use of the stable water absorption characteristics of each material, reduces energy consumption, and does not emit greenhouse gas three wastes; it can adapt to the different needs of various soil types and crop varieties in the country for medium and trace elements and compound microorganisms.

Description

technical field [0001] The invention relates to a compound microbial granular fertilizer containing medium and trace elements and a production process thereof, belonging to the field of agricultural biotechnology. Background technique [0002] With the extensive use of chemical fertilizers, it is a well-known fact that their utilization rate has been continuously reduced. This shows that it is limited to increase crop yield only by increasing the application of chemical fertilizers in large quantities, not to mention a series of problems such as environmental pollution. For this reason, scientists from various countries have been working hard to explore ways to improve the utilization rate of chemical fertilizers to achieve balanced fertilization and rational fertilization to overcome its drawbacks. Microbial fertilizers have a unique role in solving this problem. According to the types of crops and soil conditions in China, the combination of microbial fertilizers and che...

AI Technical Summary

Problems solved by technology

[0004] At present, microbial granular fertilizers are more and more popular with farmers because they are more convenient to use than powder microbial fertilizers and save labor. There are two main processes for microbial granular fertilizers: one is to granulate with a carrier first, and then wrap it with bacterial powder or bacterial liquid In this way, the bacteria are easily separated from the carrier, and are greatly affected by the external environment, the storage time is short, the bacteria are easily inactivated, and the recombination is poor; the second is that the bacteria and the carrier are mixed and granulated, and dried. The bacteria are mixed evenly, but the drying process is easy to inactivate the bacteria, and the number of bacteria fluctuates greatly.

[0005] However, the chemical fertilizers applied in conjunction with microbial fertilizers only use nitrogen, phosphorus, and potassium, but do not use medium and trace elements, and the absorption effect of plants on nitrogen, phosphorus, and potassium nutrients has become worse and worse; in some areas, the high yield of crops is limited. Factors also turn to the lack of medium and trace elements such as magnesium, zinc, boron, etc. Plant high yield must be balanced with fertilization