关键词: 攀西地区, 小麦, 品种, 氮肥, 产量

Abstract: Panxi region was a special ecological region and located in the bonded block of Sichuan basin and YunGui plateau and QingZhang plateau.Field experiment involving two nitrogen fertilizer levels and seven different-quality wheat varieties was accomplished in Xichang county of Paxi region in 2005~2006.The results indicated that the grow ing season and tillering dynamics and yield composition of different wheat varieties had obvious difference and were influenced by the nitrogen fertilizer levels.Adding nitrogen fertilizer (compared the 150 kgN/hm² applied rates with 75 kgN/hm²) had the tendency to increasing effect ears, grains perear and decrease thousand-grain weight, but its increase or decrease variation amplitude of varieties was large.The sensibility of yield to nitrogen fertilizer was different along with different-quality varieties.On the whole, the function of increase in yield of nitrogen fertilizer on strong bran gluten wheat was large but on weak bran gluten wheat was small.

Key words: Panxi region, wheat, variety, nitrogen fertilizer, yield