00459nam a2200109Ia 4500008004100000082003300041245009900074260006000173300001200233600007700245650002700322130903s9999    xx            000 0 und d  a631.8:633.1.002(540)(17)  N2  aBalanced fertilizer use for increasing food grains production in Northern states; Proceedings.  aGurgaonbPotash and Phosphate Institute of Canadac1992  ax,267p.  aZonal Symposium, Hisar, Haryana Agricultural University, Mar.23-24; 1992  aFertilizers,Conference