由于杂交中稻生理代谢与常规稻有所不同 ,管理上应尽可能满足其生理需求。根据宜城市的地理气候特性 ,对杂交中稻的苗期管理提出几点看法。1 )施足底肥 ,放水插秧。底肥以农家肥为主 ,大力提倡秸秆垫栏造肥还田 ,打青蒿肥田。在此基础上 ,每公顷用 60 0～ 750ｋｇ碳酸氢铵和450 Physiological metabolism of hybrid rice is different from the conventional rice, management should be to meet their physiological needs. According to the geographical and climatic characteristics of Yicheng City, some suggestions on the seedling management of hybrid mid-season rice are put forward. 1) Shi enough base fertilizer, water transplanting. Fertilizers to the main manure, vigorously promote the straw pad field fertilizer, hit artesunate fertilizer field. On this basis, per hectare with 60 0 ~ 750kg ammonium bicarbonate and 450