【摘要】 在湖北省孝感、仙桃、蕲春三地进行的研究结果表明：钾、锌配合施用可促进油菜前期植株生长，增加植株生物产量和株高；油菜施用钾、锌肥，可分别显著提高植株Ｋ、Ｚｎ浓度；在供试土壤条件下，以每公顷７５ｋｇＫ２Ｏ配施３０ｋｇＺｎＳＯ４·７Ｈ２Ｏ较为经济合理，可增产油菜子１５．５％～３８．０％更多还原

【Abstract】 Field experiments were conducted in Xiaogan, Xiantao and Qichun of Hubei province to examine the effects of combined application of K and Zn to rape (Brassica napus) on the growth, plant K and Zn concentrations and yield of the crop. The results shown that the shoot fresh weight and the height ofthe plants of rape. Zhongyou 821 at rossette stage were increased by the combined application of K and Zn to the crop. Application of K and Zn significantly increased the K and Zn concentrations of the plants respectively at seeding stage. Combined application of 75kgK 2O/hm 2 and 30kgZnSO 4·7H 2O/hm 2 increased the seed yield by 15 5%～38 0%.更多还原