近年来，我省东部地区葡萄生产发展速度较快，面积逐年增加，规模越来越大。因此，果农进一步掌握葡萄树的需肥特点及果实着色期施肥技术环节，对提高葡萄的商品量及商品质量，增加经济收入，显得尤为重要。葡萄树对氮的吸收基本上是与萌芽同时开始的，但吸收高峰是从展叶至开 In recent years, the development of grape production in the eastern part of our province has been rapid with the area increasing year by year and getting bigger and bigger. Therefore, it is particularly important for fruit growers to further understand the characteristics of fertilizer required for grapevine and fertilization techniques during fruit coloring period, which is of great importance to improve the quality of the products and the quality of the products and increase the economic income. Grapevine nitrogen absorption basically start with the sprouting, but the absorption peak is from the leaves to the open