00479nam a2200169Ia 4500008004100000020001500041082001600056100002400072245003000096260004000126300000800166650004100174650003400215653001900249653001900268700002200287170901s1971    xx            000 0 und d  a0210271000  a631.8bG60S  aRaja, S. V. Govinda 0aSoil and Crop Producivity  aLondonbAsia Publishing Housec1971  a313  aAgriculture and related technologies  aTechnology (Applied sciences)  aCrop prduction  aSoil fertility  aRao, H. G. Gopala