不同绿肥作物复种白菜的抑草效应及对白菜产量的影响OA

To investigate the growth characteristics of green manure crops and Chinese cabbage(Brassica rapa var.glabra Regel)under different intercropping cultivation methods,the optimal combination of green manure and Chinese cabbage intercropping was determined by comparing planting performance and economic benefits.This experiment selected sev-en types of green manure,namely Sina pis alba L.,Pi sum sativum L.,Vicia sativa L.,Vicia villosa Roth.,Phacelia tanacetifolia,Lupinus angustifolia L.,and Raphanus sativus var.raphanistrides,for compound planting with Chinese cabbage.The experiment was conducted in 2023 and lasted for two years.The experimental site was located in Harbin City,Heilongjiang Province.The results showed that,based on two years of comprehensive data,green manure crops can effectively inhibit weed growth,and P.tanacetifolia leaf clover had the strongest weed inhibition ability,with weed area within the area being≤5％.The average cabbage yield of the V.sativa-cabbage combination was 72 311.14 kg·hm-2,an increase of 18.18％ compared to monoculture cabbage.The net income reached 16 193.00 yuan·hm-2,an increase of 16.86％ compared to monoculture cabbage.It was the best combination of green manure and compound planting cabbage.