摘要
[目的]探究威海地区玉米种植中不同施肥模式的应用效果.[方法]通过田间试验,设置 6 个处理,分别为不施肥(T1)、不施用氮肥(T2)、施用有机肥(T3)、无机肥(T4)、缓控释肥(T5)和缓控释氮肥(T6),研究不同施肥模式对玉米种植中叶面积、干物质积累及产量的影响.[结果]大口期除T2 处理外,其他施肥处理的叶面积均高于T1,分别增加12.6%、17.3%、19.2%和28.1%;施肥可促进玉米的干物质量积累,缓控释肥处理在灌浆期表现突出,有机肥影响玉米干物质的积累及分配;缓控释氮肥玉米产量可达9 871.35 kg/hm2,比无机肥(T4)和缓控释复合肥(T5)分别高7.7%和15.4%.[结论]威海市玉米种植中推荐缓控释氮肥配施常规磷钾肥.
Abstract
[Objective]To explore the application effect of fertilization modes in maize planting in Weihai area.[Method]Six different fertili-zation treatments were designed to conduct field experiments:no fertilizer(T1),no nitrogen fertilizer(T2),organic fertilizer(T3),inorganic fertilizer(T4),slow-release fertilizer(T5)and slow-release nitrogen fertilizer(T6).The effects of different fertilization modes on leaf area,dry matter accumulation and yield of maize were studied.[Result]Except T2 treatment,the leaf area of other fertilization treatments was higher than T1,increasing by 12.6%,17.3%,19.2%and 28.1%,respectively in corn opening stage.Fertilizer could promote accumulating the dry matter of maize,slow-release fertilizer treatment was prominent in the filling stage,organic fertilizer affected the accumulation and distribu-tion of dry matter of maize.The yield of slow-release nitrogen fertilizer was 9 871.35 kg/hm2,7.7%and 15.4%higher than that of inorganic fertilizer(T4)and slow-release compound fertilizer(T5),respectively.[Conclusion]Slow-release nitrogen fertilizer combined with conven-tional phosphate and potassium fertilizer is recommended for maize planting in Weihai City.
维普
万方数据