1. Should Corn Nitrogen Fertilizer Guidelines be Adjusted for Late N Fertilizer Applications?

Late application of nitrogen (N) fertilizer is a topic that is receiving considerable attention. Previous research in Kansas has shown that split applications of N fertilizer can increase yield compared to applications at planting in some site years. This study was designed to investigate how N rate recommendation guidelines can be affected by splitting N fertilizer application with applications during late vegetative growth stage. Four corn study locations were established in North Central and... A. Stemmer, D. Ruiz diaz