“沪单五号”是上海农科院1981年选育的玉米新品种,该品种从1985年引进我县沿海垦区试种,并参加多点品种比较试验,表现突出,深受广大农民的欢迎。经过一年的试验,初步掌握了“沪单五号”的生育特点,雌、雄穗分化过程与叶龄的相互关系,并总结出苏北沿海垦区大面积栽培的技术要点。一、丰产性“沪单五号”在县农业局、种子公司组织的六个玉米新品种比较试验点中,产量居10个参试品种之首,亩产820.5～904斤,比对照“苏玉一号”增产11.4～20.1%,增产达极显著水平。比同时引进的新品种“苏玉二号”、“郑单七号”分别增产6.7、7.7%。曹丿乡潘南村十二户承包户,38.96亩示范田中亩产超千斤的12.06亩,占30.95%,最高亩产1090.1斤, “Shanghai alone on the 5th” is a new corn variety bred by Shanghai Academy of Agricultural Sciences in 1981, which was introduced into the coastal reclamation area of ​​our county in 1985 for trial cultivation and participated in comparative experiments of multiple varieties with outstanding performance and welcomed by farmers . After one year’s experiment, we initially grasped the characteristics of reproduction, the relationship between the differentiation process of female and tassel and leaf age, and summarized the technical points of large area cultivation in the coastal area of ​​northern Jiangsu. First, the high yield “Shanghai No. 5” In the County Bureau of Agriculture, seed companies organized six new varieties of corn trial point, the yield of the first ten varieties tested, yield 820.5 ~ 904 pounds, compared with the control “Su Jade one ”increase 11.4 ~ 20.1%, increase production reached a very significant level. Than the new varieties introduced at the same time, “Su Yu two”, “Zheng Dan seven” respectively 6.7 6.7% increase. Cao Nang Township, Pannan Village, 12 households, 38.96 mu demonstration Tian Mu per thousand acres of super-mu of 12.06 mu, accounting for 30.95%, the highest per mu 1090.1 kg,