研究了每公顷单产 52 50kg以上的大麦群体产量形成和养分积累特点。结果表明 ,在适宜的基本苗下 ,争取高成穗数和粒重或争取高成穗率和实粒数都能取得高产 ;过早播种将导致年前生长过旺 ,年后生长发育受抑制 ,群体干物质和养分积累减缓 ;高产大麦的养分积累一直持续至成熟期 ,齐穗至成熟期有持高养分积累量 ;提高穗肥的施用比例是大麦高产的重要措施 The yield formation and nutrient accumulation of more than 5250kg per hectare of barley were studied. The results showed that under the suitable basic seedlings, high yield and grain weight could be obtained or high yield and grain yield could be obtained. Premature sowing would lead to over-growth in years and growth after year was inhibited , The accumulation of dry matter and nutrients in the population slowed down; the accumulation of nutrients in high-yielding barley continued until maturity and the accumulation of high nutrients was accumulated from heading to maturity; increasing the proportion of panicle fertilizer was an important measure for high yield of barley