00494nam a2200169Ia 4500008004100000020001500041082001700056100001400073245005500087260004600142300000800188650004100196650003400237653001600271700002400287700001300311170901s1990    xx            000 0 und d  a8171690939  a631.81bS16F  aSatish, S 0aFertiliser Usage EfficienciesbA micro Level Study  aNew DelhibCommonwealthy Publishersc1990  a113  aAgriculture and related technologies  aTechnology (Applied sciences)  aFertilizers  aHemasekharappa, S.P  aSal, H.S