不同氮肥用量对机械条播小麦产量的影响  

Effect of nitrogen fertilizer rate on yield of machine-drilled wheat

作　　者：苏瑞芳[1] 江健[1] 李丹[1] 顾盈[1] 瞿洁[2] 王红梅 金秀华[1] 

机构地区：[1]上海市奉贤区农业技术推广中心,上海201400 [2]上海市奉贤区奉城镇农业技术服务中心,上海201411

出　　处：《上海农业学报》2015年第5期108-110,共3页Acta Agriculturae Shanghai

摘　　要：以‘扬麦16'为材料,在机械条播下,研究了氮肥用量及运筹技术对小麦产量的影响。结果表明:机械条播下,基蘖肥:穗肥=8:2,施氮量315 kg/hm^2时,小麦产量最高,增效明显;在施纯氮量为270 kg/hm^2水平下,适当提高穗肥比例至30%,可实现节氮增效效果。A field experiment with wheat cultivar ＇ Yangmai 16＇ was carried out under machine drilling to investigate the wheat yield as influenced by nitrogen fertilizer rates and application ratios.The results showed that when the nitrogen fertilizer rate was 315 kg/hm^2 and the application ratio of basal fertilizer ＋ tillering fertilizer to heading fertilizer was 8：2,the wheat yield was the highest under machine drilling,having a significant effect;And when the nitrogen fertilizer rate was 270 kg/hm^2,appropriately increasing the proportion of heading fertilizer to 30% could cut down the nitrogen fertilizer rate and improve the effect.

关 键 词：小麦 产量 氮肥 施肥量 机播 

分 类 号：S512.1[农业科学—作物学]