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各种农作物缺硼症状表现为:1.甜菜。首先是幼叶卷曲变形,叶色深,凋萎甚至停止生育;上部叶片出现白色网纹状皱纹,叶色深绿,褶皱逐渐加重而破裂,最后凋萎;叶柄上出现横向裂纹,颜色变黄而后变黑;外部的老叶和叶脉变黑,充满锈斑,最后凋萎。由于输导组织受损,叶片有时出现糖浆状分泌物。根上部变得干燥和松软,最后变空,颜色呈褐色到黑色,称为心腐病。严重缺硼时,幼苗梗会死亡。萝卜和芜菁缺硼时,表现类似症状。
A variety of crop boron deficiency symptoms are as follows: 1 beet. The first is the leaf curl deformation, dark leaves, wilt or even stop fertility; the upper leaves appear white reticulate wrinkles, dark green leaves, folds gradually increased and rupture, and finally wilt; petiole horizontal cracks appear, the color turns yellow Then black; external old leaves and veins black, full of rust, and finally withered. Symptoms of syrup sometimes appear on the leaves due to impaired tissue guidance. The upper part of the root becomes dry and soft, finally empty, the color is brown to black, known as heart rot. Severe boron deficiency, seedling stems will die. Radish and turnips lack of boron, the performance of similar symptoms.