The invention discloses a
nitrogen fertilizer stabilizer composition. The
nitrogen fertilizer stabilizer composition comprises the following components in part by weight: 1-60 parts of
nitrapyrin, 1-15 parts of
wall material, 2-10 parts of emulsifier, 0.05-0.3 parts of
viscosity regulator, 2-10 parts of dispersing agent and 0.1-100 parts of water. The invention further provides a preparation method of the
nitrogen fertilizer stabilizer composition. The preparation method of the
nitrogen fertilizer stabilizer composition comprises the following steps of: heating and melting
active components, adding the macromolecular
wall material, and stirring uniformly; adding a mother liquid containing the
active components and the
wall material into an emulsifier-containing water solution under a shearing condition, and emulsifying into an oil-in-
water state; and controlling grain size as required, wherein the
nitrogen fertilizer stabilizer composition can be in a liquid or
solid state; and liquid drops containing the
active components react with water molecules to form the macromolecular wall material. Through addition of a
nitrapyrin product, the
nitrogen fertilizer stabilizer composition can improve the using efficiency of an ordinary nitrogen fertilizer by decreasing nitrogen leaching and
denitrification, is good in compatibility with a variety of fertilizers, pesticides, weedicides and bactericides, and can be mixed therewith for application.