Abstract: Corn is coated yuanzhou in arid and semiarid areas of agricultural production, increasing the income of farmers main crops.The planting area enlarged,and has developed to nearly 16 million acres.Through laminating corn nitrogen fertilizer quantity test,draw in corn production in coated plays a very important role, but not more nitrogen,but in a certain range with nitrogen rates increase yield and increase,When nitrogen than certain scope,nitrogen increased yield instead.The test results, yuanzhou in the production of corn,laminating moderate fertility soil of plot,in nitrogen on ShiChun 666.7 square meters kg increase nitrogen and best effect.