1992年,始兴县农业局利用水稻育秧扰寒剂CR-4进行试验,探索抗寒剂在水稻育秧中的作用及其增产效果.试验设清水浸种盖膜育秧(对照)、药物浸种盖膜育秧和药物浸种不盖膜育秧3个处理.试验方法是:将稻种浸入50℃热水中,迅速搅动,立即捞去空秕粒,然后浸泡1小时,并不断翻动,随后沥干,将稻种放入已配好的药水中,以浸没谷种为宜,浸泡2-3夭,每天翻动2-3次.浸种结束后,按常规方法催芽后播种.试验结果表明,虽然遇上历史上罕见的低温、大雨、寡照天气,造成药物浸种不盖膜处理的秧苗全部烂掉,但抗寒剂药物浸种盖膜处理的成秧率达82%,比对照成秧率70%提高12%.抗寒剂 In 1992, Shixing County Bureau of Agriculture used rice seedling transplants CR-4 as a test to explore the role of cold-resistant agent in rice seedling raising and its yield-increasing effect. Seedling and drug soaking without membrane seedling 3 treatments: test method is: the rice species immersed in hot water at 50 ° C, rapid agitation, immediately empty fish particles, and then soak for 1 hour, and continue to flip, then drain, will Rice seeds into the well-proportioned syrup to submerge the cereal is appropriate, soaked 2-3 yao, turning 2-3 times a day.After the end of soaking, according to the conventional method of germination and sowing.Experimental results show that although the history of the encounter On the rare low temperature, heavy rain, low light weather, resulting in drug soaking seedlings without membrane treatment of all rotting, but the cold agent drug seed coating cover seedling rate reached 82%, 70% compared with the control rate of seedlings increased 12% Cold agent