干旱地区农业研究2017，Vol.35Issue(3)：198-203,296,7.DOI:10.7606/j.issn.1000-7601.2017.03.31
氮素形态配比对全膜双垄沟播玉米干物质积累及产量的影响
Effects of different ratios of nitrate to ammonium on dry matter accumulation and yield of maize planting in furrows under alternating narrow and wide ridges completely mulched
摘要
Abstract
Field experiment was used to study the effects of different ratios of nitrate to ammonium on dry matter accumulation and yield formation of maize planting in furrows under altemating narrow and wide ridges completely mulched.NO3--N/NH4+-N was in the ratios of 1:0(N1),1:1(N2),1:2(N3),1:3(N4),2:1(Ns) and 3:1(N6).Photosynthetic characteristics,dry matter accumulation and grain yield were determined under different treatments.The results showed that the NO3--N and NH4 +-N mixture ratio could increase leaf area and photosynthetic potential of maize compared with the single nitrogen form.Among them,the fertilizer ratio of 3:1 (N6) was the best treatment,the leaf area and photosynthetic potential of maize was increased 12.59％ ～ 39.85％、13.71％ ～ 25.00％,respectively,compared with the N1.Increasing the proportion of nitrate fertilizer improved photosynthetic performance,and then promoted dry matter accumulation and yield formation.Mixed supply of nitrate and ammonium fertilizer significantly promoted maize growth and development,the dry matter accumulation and yield were higher 5.45 ％ ～ 52.74 ％ and 3.85 ％ ～ 9.93 ％ than that of the single NO3--N.N6 was the best treatment which had the highest dry matter accumulation and grain yield,which increased by 17.13％ and 4.73％ than those of other treatments.关键词
氮素形态配比/玉米/全膜双垄沟播/干物质积累/产量Key words
different ratios of nitrate to ammonium/maize/planting in furrow under alternating narrow and wide ridges completely mulched/dry matter accumulation/grain yield分类
农业科技引用本文复制引用
李春春,高玉红,郭丽琢,刘宏胜,录亚丹,杨萍,杨天庆..氮素形态配比对全膜双垄沟播玉米干物质积累及产量的影响[J].干旱地区农业研究,2017,35(3):198-203,296,7.基金项目
国家自然基金项目(31460331) （31460331）
甘肃省干旱生境作物学重点实验室开放基金(GSCS-2012-16) （GSCS-2012-16）
