Effect of fertilizer and density on characters and yield of maize Nanxiao205

Effects of different fertilizers and density on main characters and yield of hybridmaize Nanxiao205 were studied. The results showed that the fertilizer and density had obvious effects on the agronomic characteristics and yield of Nanxiao205. In four fertilizer treatments, A1treatment had the largest value in spike length, diameter, kernel weight and yield. Density had a significant impact on the spike length, diameter, rows per ear, kernel weight and yield. The length, diameter, kernel number and kernel weight decreased as the density increased. But the yield rised as the density increased, the yield reached the highest when the density was 67 500 plants/hm2.The optimally treatment combination should be A2B4, at this time, the planting density was 67 500 plants/hm2 and the pure nitrogen was 225.0 kg/hm2, P2O5 was 75.0 kg/hm2, K2O was 187.5 kg/hm2.