00591nam a2200169Ia 4500008004100000082002200041100001400063245003600077260003100113300000800144490007300152600001300225650005700238942000700295952010200302999001700404140224s9999    xx            000 0 und d  a633.002(212) L2.1  aArnon, T.  aCrop production in dry regions.  aLondonbLeonard Hillc1972  a2v.  aA Plant Science Monograph, CONTENTS:-v.1-Back ground and principles.  aT. Arnon  aAgriculture-tropics,Crop yields-tropics,Soil-tropics  cBK  00104070aKSDbKSDd2014-02-24l0o633.002(212) L2.1p1554r2014-02-24 00:00:00w2014-02-24yBK  c92448d92448