Composite microbial granulated fertilizer containing medium trace elements and production process of composite microbial granulated fertilizer

Abstract

The invention discloses a composite microbial granulated fertilizer containing medium trace elements. The composite microbial granulated fertilizer comprises the following components in parts by weight: 50-90 parts of medium trace elements, 0.2-5 parts of a composite microbial agent and 8-12 parts of an adhesive, wherein the medium trace elements refer to monohydrates or anhydrous compounds. Rich soil scarcity nutrient is provided by utilizing the medium trace elements, the composite microbes provide an excellent root micro-ecological environment, substances such as auxin are secreted, absorption of crops on large, medium and trace elements is further promoted, the nutrient proportioning is reasonable, the fertilizer efficiency is high, the fertilizer absorption level of the crops can be greatly improved, the production cost is reduced, the problems such as various nutritional deficiency symptoms of the crops and low root disease resistance and cultivation of resilience are solved, the resistance of the crops is enhanced, and the yield and quality are improved. In the granulation process, the characteristic that each material is stable in water absorption is fully utilized, the energy consumption is reduced, and emission of greenhouse gas and three wastes is avoided. Moreover, different requirements of various soil types and crop varieties in China on the medium trace elements and composite microbes can be met.

Description

Technical field [0001] The invention involves a composite microbial granular fertilizer and its production technology containing a trace element, which belongs to the field of agricultural biotechnology. Background technique [0002] With the large amount of chemical fertilizers, its utilization rate has been decreased is a well -known fact.This shows that it is limited to increase the production of crops alone by adding a large amount of fertilizer, let alone a series of problems such as pollution environment.To this end, scientists in various countries have been working hard to explore the use of chemical fertilizer utilization to balance fertilization and reasonable fertilization to overcome their disadvantages.Microbial fertilizers have a unique role in solving this problem.According to the types of Chinese crops and soil conditions, the use of microbial fertilizers and fertilizer can not only ensure the increase in yield, reduce the amount of fertilizer, reduce costs, and im...

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