The diagnosis of oil crops deficiency syndrome
First, rape 1. Boron deficiency occurs with no real symptoms. In the seedling stage, the root system grows slowly, the leaves shrink, and the leaf is dark. In the case of severe boron depletion, the roots of the roots are hollowed in yellow-brown in the xylem, roots are swollen, the leaves are red-purple, and stem growth points wither. During the bud stage, there are purple spots on the middle and lower leaves, withering buds, slow growth of stolons, and even dwarfing of plant type. During flowering, the buds are chlorotic and even withered, the petals are shriveled and the flowers are not brightly colored. In the pod stage, the ovules were atrophic, and the pods were shed or deformed into node-shaped pods, and the number of pods was reduced. At this point it is also possible to withdraw tufted branches and to continue flowering but not strong. 2. The molybdenum-deficient leaves withered or scorched, twisted in a spiral, the thickness increased, and the plants clustered. 3. Zinc deficiency starts with the leaf margins first, and the leaf color turns green and gray and then progresses towards the middle. The mesophyll is yellow-white, with lesions, valgus in the middle and lower leaves, sagging of the tip, and small roots. Second, soybean 1. The molybdenum-deficient plants were dwarf, and the leaves were light in color. Many small gray-brown spots appeared. The leaves were thickened and wrinkled, curled downward, and the nodule developed. 2. The top of the boron deficiency withered, the leaves roughened and thickened, and the growth was obstructed. The top of the main root died. The lateral roots were numerous and short, and the nodule developed abnormally. Does not flower or flowering is not normal, scarring and deformity. 3. The upper leaves of the iron deficiency are yellowed and veins remain green with slight curling. When the iron deficiency is severe, the chlorosis of the new leaf is white, and it gradually expands and eventually necroses. 4. Manganese-deficient young leaves are pale green and veins remain green. In severe cases, the old leaves fall early, the leaves are shriveled, and brown spots are seen. 5. The copper-deficient plants grow slowly, the leaves are light green, the leaves are yellow, and the lower leaves are brown. 6. Zinc deficient young leaves become smaller, veins pale green or bronze. In severe cases, the leaves are lemon yellow, with ringing spots, and the plants are short and easy to fall off. Third, peanuts 1. Manganese deficiency lacks manganese in the early stage and appears yellowish yellow between veins. The late lack of manganese, bronze leaves, green veins keep green. 2. The iron deficiency of the entire plant is chlorotic. In severe cases, the gray leaves of the plant are easy to fall off. 3. Boron deficient in the middle of the kernel and darkened. Fourth, the lack of boron in the upper leaves of sunflower withered, abnormal leaf shape. Both sides of leaf veins are asymmetrical in size, discs are twisted, and flowering is less or flowering is not a result. Fifth, the lack of boron sesame growth point necrosis, can not normally flower and fruit.