00399nam a2200121Ia 4500008004100000082001900041100001600060245007600076260008900152300000700241700001500248700001400263140316s9999    xx            000 0 und d  a631.45bRAT/RU  aRatan Singh  aRun of soil and nutrient losses in vertisols of South eastern Rajasthan  aRajasthanbCentral Soil and Water Conservation Research and Training Institutec1997  a33  aPrasad,S N  aSingh,K D