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通过盆栽和田间小区试验研究了2种种衣剂与保水剂混合包衣对小麦纹枯病的防治效果。结果表明:200g3%苯醚甲环唑FS和50m L 60g/L戊唑醇FS分别与1kg保水剂混合后包衣小麦均可提高小麦株高、根系和地上部干重;第28d,2种种衣剂混合保水剂包衣对纹枯病的防效分别为78.2%和73.6%,与单施药剂防效均无显著差异。返青期,3%苯醚甲环唑FS和60g/L戊唑醇FS混合保水剂包衣两处理防效分别为82.6%和83.3%;成熟期,两处理防效分别为54.1%和60.5%,分别比各自单施药剂提高12.7%和10.4%。种衣剂混合保水剂包衣均未影响亩穗数和穗粒数,但显著提高了群体干物重、千粒质重和产量,分别比单施药剂增产8.0%和11.1%。
Pot experiments were conducted to study the control effects of 2 kinds of seed coating agents and super absorbent polymers on wheat sheath blight. The results showed that the wheat plant height, root system and shoot dry weight could be increased with 200g 3% difenoconazole FS and 50mg L 60g / L tebuconazole FS and 1kg water retaining agent, respectively. On the 28th day, The control effect of the mixture of water-repellent agent on sheath blight was 78.2% and 73.6%, respectively, which was not significantly different from that of single application agent. During the rejuvenation period, the control effects of the two treatments of 3% difenoconazole FS and 60 g / L tebuconazole FS were 82.6% and 83.3%, respectively. At the mature stage, the control effects of two treatments were 54.1% and 60.5% Respectively, 12.7% and 10.4% higher than that of the single drug application. Seed coating mixed with water-retaining agent coating did not affect the number of ears per panicle and grain number, but significantly increased the population dry weight, 1000-grain weight and yield, respectively, than the single application of pesticides yield 8.0% and 11.1%.