甘兰型油菜对硼的反应敏感,据试验,在缺硼(临界值0.5PPM)的土壤上种植,容易发生程度不同的生理性病害,导致前期幼苗生长停滞,发育不良;后期出现“花而不实”和“阴荚干果”,对产量影响很大.近十多年来,随着耕作制度的变革,双季稻面积不断扩大,普及和推广高产耐肥的矮秆良种,稻田土中的硼元素因消耗多,补充少而失去 Brassica napus is sensitive to the reaction of boron. According to the experiment, planting on the soil lacking boron (the critical value of 0.5PPM) is prone to physiological diseases with different degrees, leading to the stagnation of the seedling growth in the early stage and poor growth. In the later stage, In the recent ten years, with the reform of the farming system, the area of ​​double cropping rice has been continuously expanded, popularized and popularized high yield and fertile dwarf varieties, in the soil of paddy field The boron element due to consumption, add less and lose