Legume-cereal mixed culture as green manure enhanced the yield stability of baby Chinese cabbage via disease suppressing
文献类型: 外文期刊
作者: Fan, Zhilong;Nan, Yunyou;Yin, Wen;Hu, Falong;Zhao, Cai;Fan, Hong;Yan, Xiaohua;Cao, Weidong;Chai, Qiang
作者机构:
关键词: Disease suppression;Green manure;Mixed culture;Baby Chinese cabbage;Yield stability
期刊名称: EUROPEAN JOURNAL OF AGRONOMY
ISSN: 1161-0301
年卷期: 2025 年 174 卷
页码:
收录情况: SCIE(2025版)
摘要: Global agriculture must enhance productivity while mitigating environmental degradation, particularly in intensive vegetable systems vulnerable to soil-borne diseases and nutrient imbalances. A seven-year field study (2018-2024) in Northwest China's arid irrigation region was conducted to investigate the efficacy of legume-cereal green manure mixed cultures in suppressing the soft rot and the tipburn in baby Chinese cabbage (Brassica rapa subsp. Pekinensis cv. 'Wawacai'), while improving soil health and yield stability. Six green manure regimes-common vetch (Vicia sativa L.) (CV), hairy vetch (Vicia vilosa Roth.) (HV), barley (Hordeum vulgare L.) (BL), and their mixed cultures (CVxBL, CVxHV, HVxBL)-were evaluated against post-harvest fallow (CF) in a randomized block design. The CVxBL emerged as the most effective intervention, significantly reducing the incidence rate by 20.7-72.4 % for soft rot and by 27.5-80.2 % for tipburn compared to CF, outperforming monocultures and other mixed cultures. Structural equation modeling revealed that yield stability was not only due to direct growth promotion from improved soil properties, but was substantially driven by the effective suppression of soft rot and tipburn. Consequently, CVxBL significantly increased yield by 22.4 % and improved yield stability by 3.6-fold relative to CF. These findings establish legume-cereal mixtures as sustainable alternatives to chemical-intensive practices, effectively addressing soil degradation and disease pressure in arid intensive systems. The common vetch and barley mixed culture as green manure specifically offers a scalable solution for reconciling productivity and sustainability in vegetable production through its dual capacity for disease suppression and yield stabilization.
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