葡萄园行间生草对土壤养分及微生物的影响

Effect of Green Covering on Soil Nutrient and Microorganism of Vineyard

为了改变葡萄园土壤管理制度,通过葡萄园行间人工播种多年生黑麦草、紫花苜蓿、白三叶草与清耕对比试验,分别采集0～20、20～40cm的混合土样,研究了土壤全N、全P、全K、碱解N、速效P、速效K、土壤有机质含量、土壤微生物等的变化情况,以期探明行间生草对土壤养分及微生物的影响。结果表明:生草植被形成后能有效地提高土壤有机质含量,改良中低产葡萄园,增强土壤养分供给能力,促进土壤微生物生长和繁殖。对于改善葡萄园土壤生态环境,形成优质葡萄生产能力作用较大。

In order to change the soil management system, collecting 0-20 cm and 20-40 cm composite soil sample from grapery,row middle of which was planted with perennial ryegrass,alfalfa and white clover respectively, were used to investigate the content of total N, P, N, alkaline hydrolysis N, available P, available K and soil organic matter and the change of soil microorganism. The effect of green covering on nutrient and microorganism were also studied. The results showed that the formation of growing grass vegetations conld increase the content of soil organic matter effectively, improve low yield grapery and promote the growth and propagation of soil microorganism. It also had great effect on proving soil environment and forming production capacity of high quality grape.