Effect of biofumigation with different green manures on soil health and active ingredient profiling
文献类型: 外文期刊
作者: Yutong Ji;; Yi Zhang;;Hongyu Wang;; Dongdong Yan;;Yuan Li;;Wensheng Fang;;Aocheng Cao;; Qiuxia Wang
关键词: biofumigation; Brassica; soil health; beneficial microorganisms; isopropyl isothiocyanate
期刊名称: New Plant Protection
ISSN:
年卷期: 2025 年
页码:
收录情况: 无来源刊(2025版)
摘要: Soil-borne diseases significantly hinder soil health; however, biofumigation presents an 14 environmentally friendly and cost-effective strategy for managing these pests. Currently, research 15 on the use of plants as green manures has primarily focused on their benefits for soil quality, while 16 overlooking their fumigation effects on soil-borne pests. In this study, we evaluated several soil 17 health indicators for 11 green manures belonging to genus Brassica. Our results indicated that all 18 11 Brassica species function as the green manure and possess the potential to control pests, with 19 efficacy ranging from 37.55% to 99.19%. Among them, the rapeseed varieties “Zhong Shuang 919” 20 canola and “Hua You Za 9” canola, as well as “Niu Xin No. 3” cabbage, achieved pest control rates 21 of 86.56% to 99.19%, increased soil ammonium nitrogen content by 193.73% to 252.15%, enhanced 22 organic matter content by 2.68% to 13.81%, and boosted the relative abundance of beneficial 23 microbes, such as Bacillus species, by 59.23% to 147.85%. During the biofumigation process, 24 isopropyl isothiocyanate was identified as a novel active compound, exhibiting an LC50 of 1.92 25 mg/L against Meloidogyne incognita. These findings highlight the fumigation effects of certain 26 Brassica species, suggesting that biofumigation can effectively control soil pests while 27 simultaneously enhancing soil fertility.
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