【摘要】 为探索一种鲜食玉米轻减高效施肥新技术，设置常规施肥（处理1）、60 d包膜尿素（处理2）、90 d包膜尿素（处理3）、60 d包膜尿素减量15%配施氮肥增效剂（处理4）4个处理，研究不同包膜肥和减氮配施氮肥增效剂对鲜食玉米生长和产量的影响。结果表明，处理2的鲜食玉米株高、叶龄、穗位高、穗粒数和产量均大于处理3；处理1、处理2和处理4间鲜食玉米产量差异不显著，但处理4的鲜食玉米有效穗数高于其他处理且差异达到显著水平。与处理2相比，处理4减少了15%的氮肥用量，但产量却提升4.05%。与处理1相比，处理4为一次性施肥，操作简单，节省人工投入。同时，综合田间用工和生产资料投入情况，处理4种植鲜食玉米的产投比最高，为15.67。因此，在鲜食玉米种植过程中，氮肥配施氮肥增效剂的施肥技术更适合鲜食玉米。更多还原

【Abstract】 In order to explore a new light reduction and high-efficiency fertilization technology for fresh maize,four treatments were set up:conventional fertilization(treatment 1),60-day coated urea(treatment 2),90 day coated urea(treatment 3),60 day coated urea reduction of 15% and nitrogen fertilizer synergist(treatment 4). The effects of different coated fertilizers and nitrogen reduction combined with nitrogen fertilizer synergist on the growth and yield of fresh maize were studied. The results showed that the plant height,leaf age,ear height,grain number per ear and yield of fresh corn in treatment 2 were higher than those in treatment 3;there was no significant difference in fresh corn yield among treatments 1,2 and 4,but the effective ear number of fresh corn in treatment 4was higher than that in other treatments and the difference was significant. Compared with treatment 2,treatment 4 reduced nitrogen application rate by 15%,but increased yield by 4.05%. Compared with treatment 1,treatment 4 was one-time fertilization,which was simple to operate and saved labor input. At the same time,the yield to input ratio of fresh corn planted in treatment 4 was the highest,which was 15.67. Therefore,the fertilization technique of nitrogen fertilizer combined with nitrogenous fertilizer synergist is more suitable for fresh corn planting.更多还原