玉米的棒三叶甩出,手摸内有发软的雄穗,五、六个叶丛生,上平中空似喇叭状,群众称之大喇叭口期。这时雌穗开始小花分化,茎基部三节基本定型,日生长量10—15厘米,是加强管理,争取穗大粒多,同时为增加粒重打基础的关键时期。 Three sticks of corn threw off the hand touched the soft tassel, five or six leaves clustered, the flat-shaped hollow trumpet, the masses called the big bell mouth. At this time, the ear of the ear began to differentiate, and the three basal stems were basically shaped. The daily growth rate was 10-15 cm. This was a crucial period for strengthening management, obtaining large grains and spikes, and laying the foundation for increasing grain weight.