Foliar absorption of nutrients through the low, low absorption amount, especially thick cuticle blade; foliar fertilizer easy dripping from foliar spraying nutrient leaching susceptible to rain; spraying liquid foliar dry quickly, affecting the absorption ; some nutrients (eg Ca) difficult to transfer from the absorption site to other parts; a limited number of foliar fertilizer nutrients provided is insufficient to meet all the needs of the crop, particularly nitrogen, phosphorus, potassium macronutrients; foliar fertilizer formulated properly, easy cause leaf burn; foliar fertilizer residual effect a short time, to be repeated foliar spraying price, a lot of work. Foliar spraying grape leaves wide by fat face, fertilizer quickly, in the province of fat, is commonly used grape fertilization methods. Generally two hours after spraying fertilizer solution began to absorb, within 24 hours after spraying the urea solution can be absorbed by 88%. Flowering spraying 0.2% to 0.3% urea was added 0.1% boric acid or borax mixture or element Boron can improve fruit; young fruit and berry maturity foliar spraying superphosphate solution used to make Fruit sugar content significantly increased foliar fertilizer, and enhance resistance to disease; berry growing spraying fertilizer, yields can be increased by 7% to 10%, increase the sugar content of 1.5% to 2.5%; berries soften the initial spraying rare earths solution, yield and sweet. Foliar technology, Marvell biotechnology (certified), Shanxi foliar provided by Shouguang Maiwei biotechnology company. Shouguang Maiwei Biotechnology Limited (www.maiweishengwu.com) Shandong Weifang, a leader in bio-fertilizer, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Marvell biotechnology leader in the staff warmly welcome all inquiries negotiations to create Marvell biotechnology a better future.