In this study,four functional grass spe-cies of Lolium perenne L.,Medicago sativa L.,Festuca ela-ta and Vicia villosa Roth were selected to investigate differ-ent grass cultivation treatments on the physical and chemi-cal properties of orchard soils,using clear tillage and natu-rally growing grass as controls.The results showed that com-pared with L.perenne L.cultivation treatment,M.sativa and V.villosa cultivation treatments could significantly in-crease soil total porosity of 0-20 cm soil layer and field ca-pacity of 0-20 cm and 21-40 cm soil layers(P<0.05),and could significantly reduce soil volumetric weight of 0-20 cm soil layer(P<0.05).Compared with soils before treatment,soil organic matter content,total salt content,alkali-hydrolyzed nitrogen content(0-20 cm soil layer)and available potassi-um content(0-20 cm soil layer)of M.sativa and V.villosa cultivation treatments detected in October of 2022 increased signif-icantly(P<0.05),and soil pH value(0-20 cm soil layer)reduced significantly(P<0.05).Therefore,in arid and semi-arid areas,M.sativa and V.villosa can be selected for orchard grass cultivation treatment.The results of this study provide a theo-retical basis for improving orchard soil and increasing fruit yield.
关键词
宁夏引黄灌区/果园生草/土壤/理化性质
Key words
Yellow River irrigation zone of Ningxia/orchard grass cultivation/soil/physicochemical properties
维普
万方数据