“美洲星”叶面肥对小麦的增产效果研究

Research on Wheat Yield Increasing Effect by Leaf Fertilizer Meizhouxing

[目的]验证"美洲星"叶面肥对小麦的增产效果。[方法]通过不同小麦品种的应用效果试验,研究美洲星对小麦产量3要素及产量的影响;通过不同时期的应用效果试验,研究美洲星对小麦产量3要素及产量的影响。[结果]不同小麦品种喷施"美洲星"叶面肥后的穗粒数、千粒重有所增加,穗数变化不大,小麦生育后期喷施"美洲星"具有一定的增产作用,8个品种平均增产2.4%;不同喷施时期都使小麦的穗粒数、千粒重有所增加,有效穗数变化不大;产量以喷施3次处理最高。[结论]在小麦生长的中后期,喷施美洲星复合液肥,具有一定的增产作用,增产幅度在6%左右,在小麦拔节、孕穗、灌浆期各喷一次,效果更好。

[ Objective ] The yield-incoreasing effect of leaf fertilizer was verified. [ Method ] Effects of 3 yield factor and yield on wheat by spraying meizhouxing were studied by experiment on using different wheat varieties. And the effects of that were studied by experiment on using different period. [ Result] Grains per spike and 1 O00-grain weight increased and little changed in spike by spraying Meizhouxing for different varieties. Spraying it in late wheat had a certain role in the production, which increased by 2.4% in 8 varieties. Grain number per spike and 1 000-grain weight increased, effective panides little changed by spraying in different period, and yield was the highest with spraying 3 times. [ Condusion ] In the middle and later growth stage of wheat, application of Meizhouxing compound liquid fertilizer had a certain yield increasing effect,the increasing rate was about 6%. The best effect came out with application in the jointing stage, booting stage and grain-filling stage of the spray times.