【摘要】 研究表明，夏玉米单产11000～12000kg／hm2，应选用中熟单交种，种植6．75～7．5万株／hm2，麦收后抢时精播（6月10日左右），公顷施N450kg、P2O5225kg、k2O225kg、硫酸锌15kg，磷、钾、锌肥苗期施，氮肥苗期30％、大喇口期60％、抽雄期10％，三叶间苗、六叶定苗，确保幼苗整齐一致，拔节初期用225me／hm2乙烯利均匀喷洒防倒伏，授粉后48～50d收获。更多还原

【Abstract】 The study showed that summer maize yield reached 11 000~12 000kg/hm2 meed that using moderate maturity single cross hybrid,density at 67 500~ 75 000/hm2, carefully sowing in time after wheat being harvested (about Jun. 10), applicated N 450kg/hm2 、P2O5、225kg/hm2 、k2O 、225kg/hm2、ZnSO4、15kg/hm2, phosphate fertitizer. potaslum fertilizer,and zinc fertilizer applicated at young plant stage,nitrogenous fertilizer 30% applicrteel at young plant stage. 60% at Dalabacou stage. 10%at earing stage, achieved seeding neat.Knotting stage sprating ethrel 225ml/hm2, harvesting after insemination 48~50 days.更多还原