Influence of Different Cropping Patterns and Fertilizer Level on Agronomic Traits and Grain Yield in Maize Tianchi No.3

Under two planting pattern (maize monoculture, maize intercropping with potato), two fertilizer ratio(N∶P=1:1 and 2:1) and three fertilizer level, the agronomic traits and grain yield of maize variety Tianchi No.3 was studied. The results showed that the fertilizer ratio (N:P=1:1) and low fertilization in two planting pattern could meet the needs of the maize variety Tianchi No.3. The influences of different fertilizer levels to maize grain yield and 1000-grain weight were extremely high fertilization high fertilization low fertilization CK. In different fertilizer level condition, the maize grain yield and 1000-grain weight were obviously higher with fertilizer ratio of N∶P=1∶1 than with fertilizer ratio of N∶P=2:1.