00448nam a2200145Ia 4500 160808s2006 xx 000 0 eng d eng J:25 CC Organic farming: principles,practices and experiences / edited by Reghu Rama Das Thiruvananthapuram : Mitraniketan, 2006. Bio Fertilizers Organic Cultivation Das, Reghu Rama editor 222012 222012 0 0 0 0 ENG LIB LIB 2016-08-12 J:25 P6 315729 2023-11-04 BK