Effects of microbial agents and organic fertilizers on microbial flora in tobacco planting soil

doi:10.14088/j.cnki.issn0439-8114.2020.07.012

Abstract

Abstract: In order to study the effects of the combination of microbial agents and organic fertilizers on the microbial flora of tobacco planting soil, through field plot experiments and two factors and complete combination, the number of bacteria, actinomycetes and fungi in tobacco planting soil of different treatments at different periods were determined. The results showed that,in all combinations, the number of soil bacteria at the three periods of flue-cured tobacco was the highest under the combination of microbial agent and organic fertilizers of amino acid organic fertilizer, microbial residue and shrimp peptide organic fertilizer, respectively, especially amino acid organic fertilizer compounding treatment, which was 249.1%~705.5% higher than that of other compounding treatment; The number of soil actinomycetes was optimally under the combination of microbial agents oil dry, amino acid organic fertilizer and shrimp organic fertilizer, respectively, especially at vigorious growth period, which was 1.2%~116.6% higher than that of other treatments; The number of soil fungi at the sapling stage and mature period of flue-cured tobacco was the lowest with fulvic acid organic fertilizer, and was the lowest at vigorious growth with cow manure compound treatment. In summary, the combination of microbial agent and amino acid organic fertilizer can effectively improve the microbial flora of planting tobacco soil, which is the best combination of microbial agent and organic fertilizer.

Key words: microbial agents, organic fertilizer, tobacco planting soil, microorganism quantity

CLC Number:

XIONG Wei-liang, ZHANG Zong-jin, ZHANG Yuan, CAI Yan, YE Qin-xin, GOU Xiao-mei. Effects of microbial agents and organic fertilizers on microbial flora in tobacco planting soil[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(7): 55-58.

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