以富农1号为指示品种，研究了玉米产量与氮、磷、钾施用量之间的关系，建立了玉米产量(Y)与氮(N)、磷(P)、钾(K)肥之间的回归方程。得出玉米最大施肥量为N 102.90 kg/hm2、P2O5 46.95 kg/hm2、K2O 42.90 kg/hm2，此时玉米产量为13 201.36 kg/hm2；玉米最佳施肥量为N 108.90 kg/hm2、P2O5 22.95 kg/hm2、K2O 27.00 kg/hm2，此时玉米产量为13 582.12 kg/hm2。

Using Funong 1 as instructions cultivars to study the relationship between production of corn and fertilizer of nitrogen， phosphorus and potassium， establishing the regression equation about the maize production(Y) and nitrogen (N)， phosphorus(P)， potassium(K) fertilizer . The results showed that the largest fertilizer of corn was N 102.90 kg/hm2， P2O5 46.95 kg/hm2， K2O 42.90 kg/hm2， and the production was 13 201.36 kg/hm2. The best fertilizer quantity of corn was N 108.90 kg/hm2， P2O5 22.95 kg/hm2， K2O 27.00 kg/hm2， and the production was 13 582.12 kg/hm2.

S532

创新基地长期肥料定位试验科研协作网建设(2012GAAS10)项目资助