宁夏扬黄灌区水肥一体化条件下玉米品种比较

目的]比较宁夏扬黄灌区水肥一体化条件下不同玉米品种。方法]以先玉-335为对照,研究适应宁夏干旱地区水肥一体化条件下的17个玉米畦灌主栽品种的表现;通过对比各品种在水肥一体化条件下的出苗率、生育期、农艺性状和产量及其构成因素等,筛选适宜扬黄灌区水肥一体化条件下的玉米品种。结果]先玉-1225、新饲玉-18、天赐-19在水肥一体化条件下有较好表现,出苗率分别达到88%、82%、84%,与对照没有显著差异;先玉-1225、新饲玉-18、天赐-19株高、穗位高、空杆率等农艺性状都与对照没有显著差异;3个品种的产量高于对照,分别达到15 090.0、13 618.5、15 555.0 kg/hm~2,且与对照有显著差异。结论]先玉-1225、新饲玉-18、天赐-19共3个品种适合在扬黄灌区水肥一体化条件下推广应用。

Comparative Study on Corn Variety under Condition of Water and Fertilizer Integration in Ningxia Yanghuang Irrigation Area

Objective]To carry out the comparative study on corn variety under the condition of water and fertilizer integration in Ningxia Yang-huang Irrigation Area.Method]With XianYu -335 as the control,the performance of 17 corn varieties were researched under the condition of water and fertilizer integration suitable for Ningxia Arid Area.By comparing the emergence rate,growth period,agronomic characters,yield and its components, the corn varieties suitable for the water and fertilizer integration in Ningxia Arid Area were screened.Result]Xianxu-1225, Xinsiyu-18,Tianci-19 showed good performance under the condition of water and fertilizer integration, and their emergence rates were 88%, 82% and 84%,showing no significant differences with the control.The plant height, ear height and empty bar rate and other agronomic charac-ters of Xianyu-1225, Xinsiyu-18 and Tianci-19 showed no significant differences with the those of control.The yields of the three varieties were higher than that of the control,which were 15 090.0,13 618.5,15 555.0 kg/hm2and showing significant differences with the control.Conclu-sion]Xianyu-1225,Xinsiyu-18 and Tianci-19 were suitable to be extended in Ningxia Yanghuang Irrigation Area under the condition of water and fertilizer integration.