Effects Of Inter-row Green Covering On Soil Properties And Fruit Quality Of Zizphus Jujuba Mill.cv. Lingwuchangzao

Taking Medicago sativa,Lotus corniculatus,Lolium perenne and Trifolium repens L.as materials,In combination with wildly growing-grass and cleaning tillage,test the growth and fruit quality index,microclimate environment,soil physical and chemical properties,nutrient,microorganisms and enzyme activity.This paper studied the effects of inter-row green covering with grass on the growth and fruit quality of Zizphus jujube Mill.cv.Lingwuchangzao and soil properties.Providing theoretical foundation for efficient,high-quality and fertilizing echnology of Zizphus jujube Mill.cv.Lingwuchangzao.The results showed that:1.The effects of the microclimating environment on different treatments were significant different.The air humidity and surficial light intensity in jujube park in summer were decreased.but air humidity and atmospheric concentration of carbon dioxide were increased under treatment with Trifolium repens L..2.Temperature,humidity,bulk density of soil were decreased,pH remain unchange,total porosity of soil and organic matter were increased after different treatment.Nitrogen content,available potassium of soil were increased under treatment of Medicago sativa compared to cleaning tillage,content of available phosphorus were increased under treatment of Trifolium repens L..the fungi,actinomycetes were increased and bacteria decreased.Activity of catalase,urease and sucrase accordingly enhance.3.Inter-row green covering with grass can promote the height of tree,rough and height leaf area and fruit setting rate of the jujube,but it inhibits effect on diameter,branch length and chlorophyll content.4.Under the condition of growing-grass,Vc content and organic acids of fruit than cleaning tillage were increased,but content of flavonoid were decreased.The content of soluble sugar and organic acid were increased under treatment of Lotus corniculatus compared to cleaning tillage.5.There were extremely significant difference of nutrient with inter-row green covering with grass,the regular showed that total nitrogen>total potassium>total phosphorus.The fresh yield and water content of Trifolium repens L showed the highest than other treatments.