003630000a22001210004500060000800000082001600008245011100024260005100135260000900186300000800195310000900203650002900212  a100  a630.021 IND  aHandbook of agriculture : facts and figures for farmers, students and all engaged or interested in farming  aDelhi, Indian council of agricultural research  c1961  a748  aICAR  aAgriculture/ crops/ soil