Soil physical and chemical properties of different mix-sown combination pasture
The soil physical and chemical properties of 0-20 cm soil lay in mix-sown pasture which has been constructed 3 years by six different kinds of Legumionosae and Gramineae herbage (Vicia tenuifolia,Medicago sativa,Onobrychis viciae f olia,Phleum pretense,Agropyron cristatum,Dactylis glomerata)were studied.The mix-sowed type numbers were 3,4,5,6 and proportion of Legumionosae and Gramineae was 4 ∶ 6.The results showed that all mix-sown combinations had different impacts on soil physical and chemical properties comparing with CK.The water content in 0-10 cm soil,bulk density of T1 (V.tenui folia +M.sativa +O.viciaefolia +P.pretense+A.cristatum+ D.glomerata) and T3 (V.tenui folia + O.viciaefolia + P.pretense + A.cristatum + D.glomerata) were significant higher (P ＜ 0.05) than that of the control.In 0-20 cm layer,the soil organic matter,available nitrogen,available phosphorus,available potassium of T1 and T3 were significant higher than that of other mix-sown combinations and control (P＜0.05).The results indicated T1 and T3 treatment were more beneficial for maintaining grassland soil stability and suitable for local and similar habitat conditions.
mix-sown combinationpasturesoilphysical and chemical properties
国家科技期刊平台
NSTL
万方数据
维普
