油菜在生长发育过程中，常出现早苔早花、花而不实和发生次生花等异常现象，影响油菜的产量和质量，应采取必要措施加以防治。一、早苔早花的防治油菜在冬季即抽苔开花，使植株抗寒力降低，易受冻害。要根据具体情况采取相应的措施控制。对生长较好，年前或小寒前将要抽苔... Rape in the process of growth and development, often appear early premature flower, flowers and false and secondary flowers and other anomalies, affecting the yield and quality of rapeseed, should take the necessary measures to be prevention and treatment. First, the prevention and treatment of premature flower rape In the winter that is, bolting and flowering, cold resistance to reduce the plant vulnerable to frost damage. According to the specific circumstances to take the appropriate measures to control. Good growth, years ago or before the cold moss will be ...