论文部分内容阅读
有效穗和结实率是左右培两优特青谷产量高低的主要因素。增加种植密度和前期适量施用氮肥，有利于提高有效穗而获得高产；施用占总氮量１５％左右的粒肥，维持灌浆结实期的根系活力，是发挥培两优特青生育后期干物质生产优势，提高结实率而实现高产的重要保证。
Effective spike and seed setting rate is the main factor influencing the yield of Peiliangyou Green Valley. Increasing the planting density and pre-application of nitrogen fertilizer is conducive to raising the effective panicle to obtain high yield. Applying about 15% of the total nitrogen fertilizer to maintain the root activity at the grain-filling stage is to give play to the advantage of dry matter production in the late growth period of Peiliantengqing , Increase the seed rate and achieve high yield an important guarantee.