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以中单808为试验材料,结合不同氮肥水平,研究了聚糠萘合剂(PKN)对玉米形态及产量的影响。结果表明:PKN处理不同程度地降低了株高和穗位高,显著增加了玉米灌浆期至成熟期的叶面积指数和叶绿素含量,延缓了玉米后期叶片衰老;在不施氮肥和氮肥过高时,PKN处理促使干物质由营养器官向子粒转运。从穗部性状来看,PKN处理增加了穗行数和百粒重,产量也较对照提高。
Taking Zhongdan 808 as experimental material and combining with different levels of nitrogen fertilizer, the effects of PKC on the morphology and yield of maize were studied. The results showed that: PKN treatment reduced plant height and ear height to different extents, increased leaf area index and chlorophyll content at grain filling stage to maturity stage of maize significantly, delayed leaf senescence in late maize stage. When no nitrogen fertilizer and nitrogen fertilizer were too high , PKN treatment to promote the transfer of dry matter from vegetative organs to the grain. From the panicle traits, PKN treatment increased the number of rows and 100 kernels per panicle, and the yield also increased compared with the control.