Synergistic benefits of leguminous green manure intercropping for weed control and productivity improvement in pear orchards
文献类型： 外文期刊
作者： Li, Mingqi 1 ; He, Moxin 1 ; Lu, Yameng 1 ; Lu, Wencai 3 ; Wang, Pei 2 ; Zhang, Yuting 1 ; Li, Hui 4 ; Yang, Yuheng 2 ; Xi, Wanpeng 6 ; Zhang, Tong 1 ;
作者机构： 1.Southwest Univ, Coll Resources & Environm, Interdisciplinary Res Ctr Agr Green Dev Yangtze Ri, Chongqing 400715, Peoples R China
2.Southwest Univ, Key Lab Low Carbon Green Agr Southwestern China, Minist Agr & Rural Affairs, Chongqing 400715, Peoples R China
3.Chongqing Acad Agr Sci, Chongqing 400015, Peoples R China
4.Southwest Univ, Coll Engn & Technol, Key Lab Agr Equipment Hilly & Mt Areas, Chongqing 400715, Peoples R China
5.Southwest Univ, Coll Plant Protect, Key Lab Agr Biosafety & Green Prod Upper Yangtze R, Minist Educ, Chongqing 400715, Peoples R China
6.Southwest Univ, Coll Hort & Landscape Architecture, Chongqing 400715, Peoples R China
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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