论文部分内容阅读
[目的]探讨噁唑酰草胺对苗期水稻药害产生的原因。[方法]通过比较不同施药方法、水稻品种与用药量对秧苗的药害程度来分析其产生的主要因子。[结果]在1200 mL/hm2条件下,2种施药方法药后3、7 d品种间药害均呈显著差异;在2400 mL/hm2条件下,常规法药后3、7 d品种间药害均呈显著差异,弥雾法仅药后3 d呈显著差异;在12000 mL/hm2条件下,不同施药方法、水稻品种对药害均无显著差异。[结论]籼稻药害重于粳稻,在常规用量下,品种敏感性差异是药害产生的主要原因。
[Objective] The research aimed to discuss the cause of rice phytotoxicity of oxacillin during seedling stage. [Method] The main factors of rice seedlings were analyzed by comparing the different pesticide application methods, the rice varieties and the dosage of the rice seedlings. [Result] At 1200 mL / hm2, there were significant differences in the phytotoxicity of the two pesticides between 3 and 7 d after treatment. Under the condition of 2400 mL / hm2, There were significant differences between the two groups. Mist method showed significant difference only on the 3rd day after treatment. Under the conditions of 12000 mL / hm2, there was no significant difference in the phytotoxicity between different rice varieties. [Conclusion] The damage of indica rice was more serious than that of japonica rice. Under the conventional dosage, the difference of variety sensitivity was the main reason of phytotoxicity.