00374nam a2200133Ia 4500008004100000082002500041100001800066245002800084260002900112300001000141600003200151600001700183650004000200140224s9999    xx            000 0 und d  a631.442.52:631.61 M4  aYadav, J.M.P.  aUssar bhumi ka sudhaar/  aNew DelhibI.C.A.Rc1984  a205p.  a J.M.P.Yadav and I.C.Gupta.  aGupta,  I.C.  aFarming,Saline soils,Alkaline soils