00494nam a2200181Ia 4500008004100000020001500041082001300056100001900069245004500088250000600133260004000139300000800179650004100187650003400228653001200262653001900274700001900293170901s2004    xx            000 0 und d  a8127219819  a632bY2E  aYazdani, S. S. 0aEssentials of Scientific Crop Protection  a1  aNew DelhibKalyani Publishersc2004  a450  aAgriculture and related technologies  aTechnology (Applied sciences)  aControl  aPlant diseases  aAgarwal, M. L.