Synergistic benefits of leguminous green manure intercropping for weed control and productivity improvement in pear orchards

文献类型： 外文期刊

第一作者： Li, Mingqi

作者： Li, Mingqi;He, Moxin;Lu, Yameng;Zhang, Yuting;Zhang, Tong;Li, Mingqi;He, Moxin;Lu, Yameng;Wang, Pei;Zhang, Yuting;Yang, Yuheng;Zhang, Tong;Lu, Wencai;Wang, Pei;Li, Hui;Yang, Yuheng;Xi, Wanpeng

作者机构：

关键词： Leguminous green manure; Pear orchard; Weed control; Productivity; Soil fertility

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.2； 五年影响因子：4.6 ）

ISSN： 0304-4238

年卷期： 2025 年 340 卷

页码：

收录情况： SCI

摘要： Intercropping leguminous green manure (LGM) in orchards provides a sustainable solution for ecological weed control. LGMs are known to improve soil fertility and productivity in cropping systems. However, the synergistic effect between weed control and productivity improvement in orchards intercropped with LGM remains uncertain. In this study, we selected four LGM species-smooth vetch (SV), hairy vetch (HV), common vetch (CV), grass vetch (GV)-along with a non-legume (NLM), february orchid (FO), in a pear orchard. The control treatment had no plant green manure. Our results showed that green manure was effective in reducing weed density and dry weight, with the effect of LGM on weed control outperforming that of the NLM. Notably, weed dry weight in the HV treatment was reduced by 94.6 % at bloom stage compared to control. SV, HV, and CV treatments significantly increased soil nutrients, including organic matter and nitrogen. The FO treatment significantly increased soil organic matter and total nitrogen compared to the control. HV treatment resulted in the highest fruit yield among the six treatments. Fruit soluble solids were 14.4 % higher, and titratable acid was 34.5 % lower in the HV treatment compared to the control. Additionally, fruit total soluble sugar content was 30.2 % higher in the SV treatment compared with control. The mantel test further confirmed a strong correlation between weed control and enhanced fruit yield, demonstrating the dual benefits of LGM intercropping. These findings support the use of LGM as an effective and eco-friendly management practice for optimizing pear orchard productivity while controlling weeds.

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