菌菜轮作模式对土壤化学性质和酶活性的影响OA

In order to explore the effect of mushroom-vegetable rotation mode on relieving soil continuous cropping obstacles,this study measured the impact of rotation of different vegetable species(gift watermelon,pepper,cherry toma-to,and cabbage)after continuous cropping of morel mushrooms for three times(T1)and planting for one time(T2)on soil chemical properties and enzyme activities when planting morel mushrooms again.The results showed the rotation of mushroom-vegetable could reduce soil pH and electrial conductivity,improve organic carbon and alkali-hydrolyzable nitro-gen contents,and alleviate salinization;urease,catalase,sucrase,and phosphatase activities were decreased,while poly-phenol oxidase and alkaline protease activities were significantly enhanced;the contents of nitrate nitrogen,readily availa-ble potassium,and available phosphorus were significantly or highly significantly positively correlated with the yield of morel mushrooms;the effect of rotation of different melon and vegetable species on soil improvement was significantly different,among which the rotation mode of cherry tomato-morel mushroom was relatively better in improving soil nutrient contents,enzyme activities and morel mushroom yield.This study provides a theoretical basis and technical support for alleviating the continuous cropping obstacles of morel mushrooms and optimizing the crop rotation mode.