Nanotechnology is the branch of the technology in which the work done with very small particle (1 - 100 nm). The professor of Californian institute of technology Mr. R. Feynman delivered in 1959 at the session of the American Physical Society. In this lecture called "There is a lot of space down there" for the first time the possibility to create nano sized products with the use of atoms as building particles was considered. The fertilizer material prepare by using those nano size particle create a possibility to increase the fertilizer use efficient. This book describe how nano size particle interact with soil after applied in soil and what will happen after that. The nanotechnology not only limited to IT sector or medical science, their are a lot of scope of nano technology in agriculture to satisfied present food demand of world.