标题：Status and distribution of available macronutrients in relation to physico- chemical properties under different land uses of cold arid soils of Spiti valley in Himachal Pradesh
出版社：Action for Sustainable Efficacious Development and Awareness
摘要：Global positioning system (GPS) based surface (0-15cm) and subsurface (15-30 cm) soil samples were collected randomly from cultivated and pasture lands of cold arid Spiti valley in Himachal Pradesh. These samples were analyzed for physico-chemical properties, available NPKS and exchangeable Ca and Mg. In surface soils mean available N contents (182 kg ha-1) were in low category whereas, P (37 kg ha-1) and K (127 kg ha-1) were found in medium category under different land uses. Sand did not show significant relation with any of the physico-chemical properties studied in all the three land uses.
