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在连作3年的设施辣椒土壤中,通过设置菇-菜轮作(鸡腿菇-辣椒轮作)和连作对照2种处理,研究了2种处理下辣椒死苗率、连作土壤pH、EC值、主要养分、土壤可培养微生物含量的变化规律。结果表明:菇-菜轮作与连作对照相比,辣椒的死苗率明显降低,土壤pH值增加、EC值下降,土壤有机质含量明显增加,土壤全N、全P、全K含量都有所增加,但对全K含量的增加效果最大。土壤速效N、P、K含量变化趋势各不相同,速效N含量先升后降,速效P含量变化比较平缓,速效K含量持续增加。轮作处理较对照对细菌、真菌和放线菌生物量的增加都有明显促进作用。因此,菇-菜轮作能明显改善土壤根际环境,对辣椒连作障碍有明显缓解作用。
The results showed that the rates of dead seedlings, continuous cropping soil pH value, EC value, main nutrient content in two kinds of treatments were set as follows: mushroom-vegetable rotation (Coprinus comatus-capsicum rotation) and continuous cropping control , The change rule of soil culturable microorganism content. The results showed that compared with continuous cropping, the dead seedling rate of pepper decreased obviously, the soil pH value increased, the EC value decreased, the soil organic matter content increased obviously, and the soil total N, total P and total K content increased , But the effect of increasing total K content is the largest. Soil available N, P, K content trends vary, available N content first and then decreased, available P content changes relatively smooth, available K content continued to increase. Rotation treatment than the control of bacteria, fungi and actinomycetes biomass have a significant role in promoting. Therefore, mushroom - vegetable rotation can significantly improve the rhizosphere soil environment, continuous cropping obstacles have significantly alleviate the role of pepper.