吉林省井灌稻区多分布在中西部河谷地带和岗间低洼草甸上，其中四平、白城地区达6.6万多公顷。井灌稻区土壤盐份高、井水水温低是阻碍产量提高的主要限制因素，表现在插秧后返青慢，成活率低，有效分美下降，成穗率低，千粒重变轻，贪青晚熟，空秕粒率增加等。针对上述不利因素 Well-irrigated rice areas in Jilin Province are mostly distributed in low-lying meadows in central and western valleys and valleys, with more than 66,000 hectares in Siping and Baicheng areas. The high salinity of soils in well-irrigated rice fields and the low water temperature are the main limiting factors hindering the increase of yield. The results show that the rate of return to green is slow after transplanting, the survival rate is low, the effective fraction is decreased, Empty 秕 increased grain rate and so on. In view of the above unfavorable factors