甜菜种株徒长原因及调控措施

The spindling reason and control method of sugar beet seed plant

调查结果表明,甜菜种株徒长的形成原因有种植密度过大,施肥过多或追肥过早和田间管理不及时等。防止甜菜种株徒长的主要调控措施是合理密植;基肥适量,追肥延后;合理控水;打薹干净彻底;喷施生长延缓剂,使结实部位下移,达到种球大,薹坚挺,能增产10%以上。

The results of investigation showed that:the spindling reasons of sugar beet seed plant were higher density planting,fertilizer application too more and fertilizing earlier and field manage no in time.The main control methods to prevent spindling of sugar beet seed plant are proper close planting;Suitable fundamental fertilizer and postponing fertilizing;Control water reasonably;Finding bolter thoroughly;Growth deferring chemical sprayed;And to move down the bearing part to make the seed ball big and make the bolter strong,it can improve production above10%.