00490nam a2200169Ia 4500008004100000020001800041082001400059100002200073245002500095260006700120300000800187650004100195650003400236653001300270700001700283700002000300170901s2010    xx            000 0 und d  a9788122427431  a631bC29T  aChandrasekaran, B 0aTextbook of Agronomy  aNew DelhibNew Age International (P) Limited, Publishersc2010  a835  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgronomy  aAnnadurai, K  aSomasundaram, E