论文部分内容阅读
试验证明:在不同时期喷施不同浓度的2,4-D丁酯对冬小麦穗数、穗粒数、穗长、千粒重、产量都有明显的影响,随着2,4-D丁酯浓度的增高,冬小麦的千粒重在减少,当浓度达到200mL/667m2时,与对照相比千粒重下降了16.02%;产量减少了22.02%;而在冬小麦拔节前喷施,浓度为50mL/667m2的2,4-D丁酯,对冬小麦的增长效果最好。
Tests showed that spraying different concentrations of 2,4-D butyl ester at different periods had a significant effect on the spike number, spike number, spike length, thousand-grain weight and yield of winter wheat. With the concentration of 2,4-D butyl ester And the grain weight of winter wheat decreased. When the concentration reached 200mL / 667m2, the 1000-grain weight decreased by 16.02% and the yield decreased by 22.02% compared with the control. When the concentration was 200mL / 667m2, -D butyl ester, the best effect on the growth of winter wheat.