In June 14th, the construction of farm workers in Heilongjiang reclamation area science park drive big horsepower locomotives in Maize Seedling fertilizer. On the same day, Heilongjiang reclamation farms 50 locomotives shuttle N fertilizer in 190000 acres of corn fields. It is understood, maize nitrogen has the effect of promoting seedling root and promote leaf stalk, the weak seedling corn plot fertilization, but also speed up the transformation and upgrading of two or three kinds of seedlings, conducive to the realization of the whole field of corn yield.