不同中微量元素肥料对早稻产量及效益的影响

[目的]为了探索水稻土中Ca、Cu等中微量元素的供需状况及其对水稻生长发育和产量构成的影响.[方法]通过施用不同中微量元素肥料：钾硅钙肥和硫酸铜（化学纯）.[结果]在施用氮磷钾肥基础上配施钾硅钙肥和硫酸铜,可有效增加早稻株高、最高苗数、有效穗数、结实率、千粒重等性状.[结论]该方法不仅可以提高早稻产量,而且可以实现经济效益明显增收.

Research on Yield and Benefit of Trace Element Fertilizer in Early Rice

[Objective] The research aimed to explore the supply and demand situation of trace elements such as Ca,Cu in the paddy soil and its influence on rice growth and yield components.[Method] Different trace element fertilizer K-Si-Ca fertilizer and CuSO4 · 5H2O （pure chemicals） were applied.[Result] On the basis of N-P-K fertilizer,applying K-Si-Ca fertilizer and CuSO4 · 5H2O could effectively increase the plant height,the highest number of seedlings,effective panicle number,maturing rate,thousand seed weight,etc.[Conclusion]The method not only improved the early rice yield,but also realized the increasing economic benefits significantly.