【摘要】 以当前推广面积较大的冬小麦新品种邯6172为材料,在中水肥条件和施肥总量相同的情况下,以不同的底肥量、追肥时期、追肥次数及追肥量进行了五个处理的综合试验,通过对产量结果的统计和对群体茎蘖动态、叶面积指数动态、次生根等项目的分析,从而得出相应的最佳施肥方案。即磷、钾全部底施,氮底施60%,起身拔节期1次追N占40%(即每公顷施底肥P2O590kg+K2O90kg+N126kg;起身拔节期1次追N84kg)。更多还原

【Abstract】 Under the condition of middle level of irrigation and fertilization and using the same amount of fertili zer,an experiment had five treatments with different guantity of base fertilizer, was done for the winter wheat variety Han-6172. According to the analysis of yield ,tillers and LAI under different stages and secondary roots et al, the best treatment was the phosphate fertilizer and potash used as base fertilizer ,using 60% as base fertilizer and 40% as top dressing at elongation stage for nitrogen fertilizer.（i.e.base fertilizer:P₂O₅ 90 kg/hm²+K₂O 90 kg/hm²+N 126 kg/hm²;top dressing at elongation stage:N 84 kg/hm²）。更多还原