论文部分内容阅读
为探讨丁草胺在水稻秧田和直播稻田的使用价值,在直播稻大田试验的基础上,进行了盆体试验,以探讨其有效使用剂量及对水稻出苗率的影响。一、试验设计 (一)供试药剂:昆山化工厂提供的60％丁草胺乳剂。 (二)施药时期和方法:两个时期四种处理。 1.水稻不出苗施药:水稻浸种60小时播种,稗籽露白同时播种。 (1)播种后湿润用药 (2)播种后1.5厘米水层用药,36小时自然落干。 2.水稻出苗后施药,稻种摧芽播种、秧苗芽鞘期、稗苗0.3叶期施药。
In order to explore the use value of butachlor in rice seedlings and direct seeding rice fields, a pot experiment was conducted on the basis of field experiments of direct seeding rice to explore its effective use dose and its effect on the emergence rate of rice. First, the experimental design (A) for the test agent: Kunshan Chemical Plant 60% Butachlor emulsion. (B) the application period and method: two periods of four kinds of treatment. 1. Rice does not sprout application: rice soaking 60 hours sowing, barnyard grass white seeds at the same time. (1) after sowing wet medication (2) after sowing 1.5 cm aqueous layer, 36 hours of natural dry. 2. Rice seedling application, seed germination destructive buds, seedling sheath stage, Eucalyptus 0.3 leaf application.