Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; State Key Laboratory for Biology of Plant Disease and Insect Pests, Beijing 100193, China.
Sci Total Environ. 2019 Jul 20;675:615-622. doi: 10.1016/j.scitotenv.2019.04.222. Epub 2019 Apr 19.
Chloropicrin (Pic) and biofumigation are both considered effective chemical and non-chemical alternatives to methyl bromide, respectively, for controlling crop-limiting soil-borne pests and diseases. In this study, we evaluated the effects of Pic alone and 'chloropicrin alternated with biofumigation' (CAB) on the soil's physico-chemical properties and strawberry yield, as well as their effects on soil bacterial and fungal communities. The contents of NO-N, available phosphorus and potassium, and electrical conductivity were all significantly increased when CAB was used. In addition, CAB also significantly increased the strawberry marketable yield. High-throughput gene sequencing showed the species abundance of some soil bacteria and fungi was significantly increased such as the phyla Proteobacteria, Bacteroidetes, Actinobacteria and Ascomycota when CAB was used. However, CAB decreased the relative abundance of the phyla Firmicutes, Chloroflexi, Gemmatimonadete and Zygomycota. These results indicated that CAB could improve the physico-chemical properties of soil for strawberry production, increase the genetic diversity of microbes in the soil and enhance marketable fruit yield.
氯化苦（Pic）和生物熏蒸分别被认为是控制作物限制作物土传病虫害的有效化学和非化学替代物，替代甲基溴。在这项研究中，我们评估了单独使用氯化苦（Pic）和“氯化苦交替生物熏蒸（CAB）”对土壤理化性质和草莓产量的影响，以及它们对土壤细菌和真菌群落的影响。单独使用氯化苦（Pic）或 CAB 都会增加土壤中硝态氮、有效磷和速效钾的含量以及电导率。此外，CAB 还显著提高了草莓的商品产量。高通量基因测序表明，CAB 处理后，一些土壤细菌和真菌的物种丰度显著增加，如变形菌门、拟杆菌门、放线菌门和子囊菌门。然而，CAB 降低了厚壁菌门、绿弯菌门、芽单胞菌门和接合菌门的相对丰度。这些结果表明，CAB 可以改善草莓生产土壤的理化性质，增加土壤中微生物的遗传多样性，并提高商品果产量。
