仲丁灵不同施用技术对水稻旱直播出苗和杂草封闭效果的影响

Effects of Different Techniques of Butralin on Dry Direct-Seeding and Weed Sealing in Rice

开展仲丁灵不同施用方法、不同施用量处理试验,对水稻旱直播出苗及田间杂草封闭效果进行研究,结果表明:仲丁灵不同施用方法处理对水稻旱直播出苗影响不显著,不同施用量处理对水稻旱直播出苗有极显著影响;仲丁灵不同施用方法、不同施用量对水稻旱直播田间稗草数量均有极显著影响。分析得出水稻旱直播土壤药剂封闭由目前的封闭后灌水改为先灌水后封闭,仲丁灵施用量以1125~1500 mL·hm^(-2)为宜。

Effect of different application methods and different dosage of butralin on the dry direct-seeding of rice and the field weed sealing result were studied.The results showed that different application methods of butralin had no significant effect on dry direct-seeding of rice,and different dosage had significant effect on dry direct-seeding of rice.Different application methods and different dosage of butralin had significant effect on the quantity of barnyard grass in rice field.It is concluded that closed irrigation followed by irrigation was changed to closed irrigation followed by closed irrigation.The dosage of butralin was 1125~1500 mL·hm^(-2).