葡萄叶面喷肥,用肥少,见效快,增产效果显著,生产实践证明,一般可增产16—22%,含糖量提高2—3度,是实现增产的一项好措施.生长前期:以氮肥为主,喷施0.3%—0.4%的尿素和0.2%—0.3%的磷酸二氢钾溶液,可以促进新梢加速生长。花前喷施:一般在开花前10天左右进行,可用0.1%—0.3%的硼砂或硫酸锌溶液喷洒,可提高座果 Grape foliar spray, with less fertilizer, quick, yield significant effect, production practice has proved that the general increase of 16-22%, sugar content increased by 2-3 degrees, is a good measure to increase production.Preliminary growth: The main nitrogen fertilizer, spraying 0.3% -0.4% urea and 0.2% -0.3% potassium dihydrogen phosphate solution, can promote the shoots to accelerate growth. Spraying before spraying: generally about 10 days before flowering can be sprayed with 0.1% -0.3% borax or zinc sulfate solution can improve the fruit