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硼是油菜正常生长发育过程中不可缺少的一种微量元素。土壤严重缺硼时,在苗、薹期即可发病,病株萎缩死亡;土壤中、轻度缺硼时,花期后出现症状,病株花而不实。为了防止油菜发生由于缺硼引起的萎缩不实病,提高油菜产量,我县进行了大面积喷硼试验,1980年喷硼油莱面积达1.2万亩;1981年扩大到4.5万亩,占全县油菜面积的56%,收到了良好效果。
Boron is an indispensable trace element in the normal growth and development of rape. When the soil is seriously lack of boron, the disease can occur at seedling and bolting stage and the atrophy of the diseased plant dies. In the soil, when there is a slight boron deficiency, symptoms appear after florescence, and the diseased plants are discolored. In order to prevent rape due to lack of boron caused by shrinkage is not a real disease, improve rapeseed production, the county carried out a large area of boron spraying test, Bora Bora in 1980 an area of 12000 acres; in 1981 expanded to 45000 acres, accounting for 56% of county rapeseed area, received good results.