据调查：省内葡萄园土壤凡属于偏碱性的一般缺硼现象较为广泛。葡萄缺硼可导致葡萄幼叶产生油渍状黄色斑点，成叶期更加明显，严重的还可形成褐色坏死斑，叶缘呈现烧灼状，有的还可引起叶片变小，变畸形等。由于本病引起早期落叶，所以一般至７月下旬，缺硼树的叶片仅相当于正? According to the survey: the province’s vineyard soil, which belong to the general lack of boron is more extensive. Boron deficiency in grapes can lead to the formation of oily yellow spots on young leaves of grapes, which are more pronounced in the leaf-setting stage. Brownish necrotic spots may also form in serious grapes. The leaf margin presents cautery, and some may cause the leaves to become smaller and become deformed. As the disease caused by early deciduous, so generally late in July, lack of boron leaves is only equivalent to the right?