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通过田间试验与示范,探讨了小麦田使用吡虫啉和戊唑醇包衣小麦种子对小麦出苗、长势、病虫害和产量的影响。结果显示,用600 g/L吡虫啉FS 200 mL+60 g/L戊唑醇FS 50 mL包衣100 kg小麦种子,小麦出苗略迟1～2 d,但出苗率比空白对照高1～2个百分点;春季小麦分蘖末期的单株分蘖数比对照增加0.3～0.9个,次生根长度增加0.3～1.9 cm,单株鲜重增加0.7～1.9 g;对小麦苗期蚜虫防效接近100%,对穗蚜防效36.17%～98.88%;对秋苗期地下害虫的防效38.46%～88.89%;对拔节期小麦纹枯病防效28.85%～79.51%;小麦增产8.54%～9.54%。在穗蚜较重地区和年份,包衣处理的增产21.12%～79.57%,投入收益比1:2.5～13.3。
The effects of imidacloprid and tebuconazole-coated wheat seeds on the emergence, growth, pest and disease and yield of wheat in wheat field were discussed through field experiments and demonstrations. The results showed that 100 kg wheat seeds were coated with 600 mg / L imidacloprid FS 200 mL and 60 g / L tebuconazole FS 50 mL, and the emergence rate of wheat was slightly higher than that of the control Percentage. The number of tillers at the last tillering stage in spring increased by 0.3-0.9 compared with the control, the secondary root length increased by 0.3-1.9 cm, and the fresh weight per plant increased by 0.7-1.9 g. The control effect on the aphids in wheat was nearly 100% The control effect of spider mites was 36.17% ~ 98.88%, that of underground pests in autumn was 38.46% ~ 88.89%, that of wheat was 28.85% ~ 79.51% at wheat jointing stage, and that of wheat was 8.54% ~ 9.54%. In the areas and years with heavier spider aphids, the yield of the coating treatment increased from 21.12% to 79.57%, and the return to investment ratio was from 1: 2.5 to 13.3.