The benefits of a crop foliar spraying, fertilizing the roots supplement if the root method can not be applied in a timely manner to meet the needs of crops, spraying only take underground soaring to quickly add nutrients to meet crop growth and development needs. 2, rapid nutritional supplements in the process of crop growth, crop has shown a lack of certain nutrients disease, the use of soil nutrient fertilization will take some time to be absorbed by crops, can not be alleviated crop nutrient deficiency symptoms. Then the use of foliar fertilization, then enable the rapid adoption of nutrients into the plant leaf, solve the problem of nutrient deficiency. 3, full fertilizer some fruit trees and other crops in some deep roots absorb nutrients than less, if the traditional methods can not be applied to the root fertilization absorption site can not fully play its fertilizer, but you can obtain more spraying good results. 4, to reduce the take of contaminated soil foliar fertilization, saving fertilizer, but also reduce the contamination of soil and water, is an effective technique to achieve both fertilization. 5, cost-effective according to research estimates, the general crop spraying in Boron, the utilization of boron is 8.18 times that of the base facilities. From the economic point of view, foliar spray should be applied cost-effective than the root. Rational use of plant yam cultivation of early market growth regulators, nutrition guidance downward shift underground soaring early role in promoting the yam enlargement. After soaring underground yam covered frame manufacturer, excessive leaf growth but likely to cause field shading, nutrient consumption by underground rhizomes enlargement soaring unfavorable underground tuber enlargement. Therefore, after the yam covered frame, we should begin to pay attention to control leaf growth, especially pay attention to suppress yam bean production, promote nutrition downward shift, so as soon as possible in order to ensure the yam listing and increase production. Private underground rhizome soaring San Gil Chemical (certified), underground soaring provided by Zhengzhou Chemical Co., San Gil. San Gil Zhengzhou Chemical Co. (www.sjehg.com) is Zhengzhou, plant growth regulators leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In San Gil Chemical leadership with the staff warmly welcome all inquiries negotiations to create a better future for San Gil chemicals.