TY - GEN AU - Bhushan L S , Abrol I P and Rama Mohan Rao M S TI - Soil and water conservation: challenges and opportunities V.1 SN - 8120410803 U1 - 631.4 BHU CY - New Delhi, Oxford & IBH publishing co. pvt. ltd KW - Land degradation/ Soil Degradation Degradation- Sustainable Agriculture/ Modelling- Conservation/ Modelling- Productivity ER -