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废弃果蔬酵素液肥对烤烟产值及根际土壤微生物的影响

Effects of enzyme liquid fertilizer made from fruit and vegetable waste on output value of flue-cured tobacco and microorganisms in rhizosphere soil

  • 摘要: 为探究施用废弃果蔬酵素液肥对烤烟产值和植烟根际土壤微生物的影响,以烤烟品种云烟87为试验材料,通过大田试验设置不施废弃果蔬酵素液肥(CK)、施加废弃白菜酵素液肥(FC)和施加废弃脐橙酵素液肥(FO)3种处理,研究不同废弃果蔬酵素液肥处理对烤烟生长和产量产值的影响,以及烤烟根际土壤微生物群落结构和多样性差异,揭示影响根际土壤微生物的主要环境因子。结果表明,与CK相比,FO处理烤烟株高、茎围、有效叶片数、最大叶长、最大叶宽分别提升16.33%、14.53%、11.11%、10.43%和10.31%,烤烟产值和上等烟比例分别提高15.16%、20.84%;根际土壤有机质含量较CK显著增加13.54%;根际土壤细菌变形菌门(Proteobacteria)和拟杆菌门(Bacteroidota)相对丰度(21.67%和3.43%)显著高于CK;根际土壤真菌担子菌门(Basidiomycota)相对丰度(24.44%)最高;土壤有效磷(AP)是驱动细菌群落结构变化的关键环境因子。废弃脐橙酵素液肥通过优化根际土壤细菌和真菌群落结构及其多样性,改善土壤生物化学环境,更有利于烤烟生长和产值增加。

     

    Abstract: To investigate the effects of applying enzyme liquid fertilizer made from fruit and vegetable waste on the output value of flue-cured tobacco and the microorganisms in the rhizosphere soil for tobacco planting, the Yunyan 87 variety of flue-cured tobacco was used as the experimental material. Field experiments were conducted with three treatments: no enzyme liquid fertilizer (CK); enzyme liquid fertilizer made from cabbage waste (FC); and enzyme liquid fertilizer made from navel orange waste (FO). The effects of these treatments on the growth, yield and output value of flue-cured tobacco were studied, as were the differences in the microbial community structure and diversity of the rhizosphere soil for planting flue-cured tobacco. The main environmental factors affecting rhizosphere soil microorganisms were also revealed. The results showed that compared with the control treatment (CK), the plant height, stalk circumference, effective leaf number, maximum leaf length and maximum leaf width of the flue-cured tobacco increased by 16.33%, 14.53%, 11.11%, 10.43% and 10.31% respectively in the FO treatment, and the output value and proportion of high-grade leaves increased by 15.16% and 20.84% respectively. The organic matter content of the rhizosphere soil increased significantly, by 13.54% compared to CK. The relative abundance of Proteobacteria and Bacteroidota in the rhizosphere soil (21.67% and 3.43%, respectively) was significantly higher than those in the CK sample. The relative abundance of Basidiomycota in the rhizosphere soil was highest at 24.44%. Soil available phosphorus (AP) was a key environmental factor driving changes in bacterial community structure. Enzyme liquid fertilizer made from navel orange waste optimizes bacterial and fungal community structure and diversity in rhizosphere soil, thereby improving the soil biochemical environment and increasing the growth and output value of flue-cured tobacco.

     

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