范县位于河南省东北部,黄河下游北岸,紧邻黄河,水稻引黄灌溉面积超过20万亩。1966年引黄种稻以来,均采用育秧、拔秧、洗秧、插秧技术模式。20世纪90年代,本县开始引进水稻抛秧技术,因苗床灌水量小,不淹没秧盘,造成返碱死苗,缺少因地制宜的技术改进,没有成功,一度中断。随着当前农村劳动力越来越缺乏,用工越来越贵(拔秧、插秧1亩田需工钱240~260元),2014年结合范县实际,对水 Fan County is located in northeastern Henan Province, the lower reaches of the Yellow River, close to the Yellow River, irrigated area of ​​more than 200,000 mu of rice. Since the introduction of yellow rice in 1966, are used Yangguang, pull seedling, washing seedlings, transplanting techniques. Nineteen ninties, the county began to introduce rice throwing technology, because the seedbed irrigation is small, do not submerge the tray, resulting in dead seedlings back to the lack of technology to adapt to local conditions without success, was interrupted. With the current lack of rural labor force, more and more expensive employment (pull rice, transplanting 1 mu field work required 240-260 yuan), combined with the actual Fan County in 2014, the water