蕾薹期是油菜营养生长和生殖生长的两旺时期,花蕾不断分化、发育长大,分枝不断抽生,短柄叶、无柄叶和分枝叶都在这时长出,叶面积迅速增大,根系继续扩展,叶片的同化作用和根系吸收能力显著增加。蕾薹期是油菜春发稳长,达到根强、秆壮、枝多,争取角多、粒多、粒重,奠定丰产基础的关键时期。在这个生育阶段,气温逐渐上升,光照时间逐渐增多,雨量充沛等自然 Bud stage is rape vegetative and reproductive growth of the thriving period, the buds continue to differentiate, develop and grow branches constantly pumping, short-stem leaves, stemless leaves and branch leaves are grown at this time, the rapid increase in leaf area , Root system continued to expand, leaf assimilation and root absorption capacity increased significantly. Bud bolting stage is stable rape spring, reaching root strength, stalks and strong, sticks and more, for the angle and more, more grain, grain weight, laying a key foundation for high yield. In this fertility stage, the temperature gradually increased, the light time gradually increased, abundant rainfall and other natural