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为了明确几种拌种剂对甬优12秧苗期病虫害的控制效果及对秧苗素质的影响,进行此实验,结果表明:甬优12应用60%吡虫啉悬浮拌种剂等1次拌种秧苗期病虫害综合控制效果85%以上,较对照吡虫啉拌种处理增效超过15个百分点;其株高、总根数、白根数、根长、茎基宽、鲜重及大田分蘖数分别较空白对照增6.06%、7.00%、17.69%、51.19%、37.04%、34.47%和11.67%,较吡虫啉对照药剂处理增4.94%、3.17%、13.07%、17.59%、29.82%、18.33%和2.29%,基本能达到1次拌种全秧苗期和大田前期无需农药防治,较常规减少农药使用次数2次以上。这为革新病虫害防治以及农药减量控害实施具有重要意义。
In order to clarify the control effect of several seed dressing on the plant diseases and insect pests of Yongyou 12 seedling and its effect on the quality of seedlings, the experiment was carried out. The results showed that: Yongyou 12 applied 60% imidacloprid suspension seed dressing, The comprehensive control effect was more than 85%, which was 15% higher than that of control imidacloprid seed dressing treatment. The plant height, total root number, white root number, root length, stem base width, fresh weight and field tiller number were increased by 6.06 Which was 4.94%, 3.17%, 13.07%, 17.59%, 29.82%, 18.33% and 2.29% more than that of imidacloprid control agent, and could basically reach the levels of 7%, 17.69%, 51.19%, 37.04%, 34.47% and 11.67% 1 seed dressing seedling stage and early field without pesticide control, the conventional reduction of pesticide use more than 2 times. This is of great significance for the prevention and control of pests and diseases as well as the implementation of pesticide reduction and control.