甘兰型油菜萎缩不实病,又称“花而不实”病。它是由于土壤中缺乏有效态硼而引起的一种生理性病害。在田间其发病程度轻重,常因土壤条件和农业技术的不同而有很大的差异。为了在生产上能有效地进行防治,我们对甘兰型油菜的需硼规律做了一些调查和试验研究。 Brassica napus shrunken disease, also known as “flower and not real” disease. It is a physiological disease caused by the lack of available boron in the soil. In the field of its severity, often due to different soil conditions and agricultural technology have very different. In order to effectively prevent and control in production, we conducted some investigation and experimental research on the boron requirement of Brassica napus.