渭北黄土高原旱地果园生草对土壤物理性质的影响

李会科,张广军,赵政阳,李凯荣

Effects of Different Herbage on Soil Physical Properties of non-irrigated Apple Orchard in Weibei Loess Plateau

Li Hui-Ke

中国农业科学 . 2008, (7): 2070 -2076 . DOI: 10.3864/j.issn.0578-1752.2008.07.026