Long term Effects of Organic Amendment And Mineral Fertilizers On Soil Fertility In A Rice-Rice-Wheat Cropping System In Nepal [printed text] / Regmi, A.P., Author . - Philippines : University of Philippines Los Banos, 1994 . - 188 p.
Languages : English (eng)

Keywords:	thesis;nitrogen;phosphorus;soil  organic  matter;zero  tillage;water  management;materials  and  methods
Link for e-copy:	http://elibrary.narc.gov.np/?r=3345