Preparation method of bio-fertilizer used for flue-cured tobacco

Abstract

The invention discloses a preparation method of a bio-fertilizer used for flue-cured tobacco, relating to a fertilizer and belonging to the field of novel fertilizers. The preparation method is characterized by comprising the step: respectively culturing rhizobium, azotobacter chroococcum, bacillus megaterium and bacillus mucilaginosus to obtain a compound micro-bacterial fertilizer. The output and quality of the flue-cured tobacco can be improved, the spreading of harmful bacteria in soil can be inhibited through the mass propagation of beneficial microorganisms, and the disease resistance of the flue-cured tobacco can be improved. The preparation method has the beneficial effects that insoluble phosphorus and potassium in the soil are decomposed into soluble phosphorus and potassium so as to be absorbed by crops, and the utilization ratio of the flue-cured tobacco to the soil nutrition can be improved; the bio-fertilizer can also increase the organic nutrition and inorganic nutrition to the plants, so as to prevent the loss of nutrition; the roots of the flue-cured tobacco are enabled to be developed so as to have stronger stress resistance; the application amount of the fertilizer can be effectively reduced, the soil caking caused by mass application of fertilizer in successive years can be overcome, and the soil structure and ecological environment can be improved; the output and quality of the flue-cured tobacco can be improved, the spreading of harmful bacteria in soil can be inhibited through the mass propagation of beneficial microorganisms, and the disease resistance of the flue-cured tobacco can be improved.

Description

technical field [0001] The invention relates to a fertilizer, which belongs to the field of novel fertilizers, in particular to a biological fertilizer method for flue-cured tobacco. Background technique [0002] At present, during the 20 years of development of Xifeng in Gansu, flue-cured tobacco has always been a pillar industry for the development of rural economy. Since the trial planting of flue-cured tobacco in the 1980s, more than 450,000 mu of flue-cured tobacco has been planted in the whole region, the direct income of tobacco farmers has reached more than 300 million yuan, and the fiscal revenue has reached more than 45 million yuan. played a leading role in the rural economic development of the region. [0003] Different fertilizer-tolerant varieties of flue-cured tobacco had different fertilizer utilization rates, and the utilization rates of N, P, and K fertilizers were higher in varieties with weaker fertilizer tolerance than those with strong fertilizer toler...

AI Technical Summary

Problems solved by technology

Therefore, in contrast, varieties with strong fertilizer tolerance should strictly control the amount of fertilizer to avoid large changes in the chemical composition of tobacco leaves, which will affect the stability and usability of tobacco leaf quality.