不同种植密度与化控剂互作对浚单28农艺性状及产量的影响

目的]为了探讨不同种植密度与化控剂互作对浚单28生长发育及产量的影响。方法]对4个种植密度与5种化控剂互作进行了比较分析,以正常种植为对照。结果]同一种植密度不同化控剂之间对产量的影响不一样;用化控剂处理的玉米株高、穗位高均低于对照,茎粗高于对照;随种植密度的增加,穗长、穗行数、行粒数、千粒重呈下降趋势,但容重变化不大;浚单28在种植密度7.50万株/hm2与化控剂互作下产量最高。结论]该研究可为浚单28的高产优质栽培提供指导。

Effects of Interactions of Different Planting Density and Chemical Control Agents on Agronomic Characters and Yield of Jundan 28

Objective ] The aim was to discuss the effects of interactions of different planting density and chemical control agents on agronomic char- acters and yield of Jundan 28. Method] The interaction of four planting density and five chemical control agents were analyzed, and taking the com- mouly planting as control. Result ] Under the same planting density, the effects of different chemical control on yield was different; the maize plant height and ear height of all chemical control agents treatments were all lower than those of control, while stem diameter were higher than those of con- trol ; with the increase of planting density, the ear length, rows per ear, grains per row, and 1 000-grain weight all showed decreasing tendency, while the volume weight had a little change; the yield of Jundan 28 was the highest under the interactions of planting density 75 000 plants per ha and chemical control a~ems. Conclusion] The study orovides a reference for hi~ yield and ~ood aualitv cultivation of Jundan 28.