First, there is a clear principle of foliar leaf structure, the basic structure of the leaf blade and petiole foliar supply, stipulate. Also includes efficient foliar leaf epidermis, mesophyll, veins. Mesophyll generally divided into palisade and spongy tissue (that C3 plants and C4 plants are different). First mate foliar and soil fertilizer nutrient supply a limited number only as an adjunct to, and therefore the basis of foliar fertilizer to the soil price, and with the application of soil fertilization, crop nutrients urgent need or lack of anything, you buy contain What foliar nutrients. Second, the majority of goods purchased foliar qualified products on the market is good, generally contains a variety of nutrients, often also added to improve the effect of spraying components, such as show, chelating agents, growth regulating agents. But there are also fake and shoddy products fertilizer, so the farmer friend to look at when purchasing three cards (fertilizer registration certificate, production license, product certification), and save notes, prevent fraud. The best-known and trusted businesses to purchase, conditions can also do first point of simple comparison test in their own land. Foliar price, Marvell biotechnology, 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.