00508nam a22001697a 4500003000400000008004100004020001500045082001600060100001600076245007500092250002500167260004200192300001100234650004200245650003500287650001600322OSt230613b        |||||||| |||| 00| 0 eng d  a812722460X  a631.5bS48C  aSingh, S.S.  aCrop management: under irrigated and rainfed conditions/by S.S. Singh   a4th. rev. & enl. ed.  aLudhiana:bKalyani Publishers;c2005.  a538 p.  aAgriculture and related technologies   aTechnology (Applied sciences)   aField crops