Response of maize yield and nitrogen recovery efficiency to nitrogen fertilizer application in field with various soil fertility.

ABSTRACT: Appropriate nitrogen (N) management system is essential for effective crop productivity and minimizing agricultural pollution. However, the underlying mechanistic understanding of how N fertilizer regulates crop yield via soil properties in soils with different fertilities remains unresolved. Here, we used a field experiment that spanned 3 cropping seasons to evaluate the grain yield (GY), aboveground biomass and N recovery efficiency (NRE) after treatment with five N fertilizer application rates (N0, N75, N112, N150, and N187) in soils with three levels of fertility. Our results indicated that the highest GY across low, moderate, and high fertility soils were 1.5 t hm^-2 (N150), 4.9 t hm^-2 (N187), and 5.4 t hm^-2 (N112), respectively. The highest aboveground

SUBMITTER: Zou H 

PROVIDER: S-EPMC10935998 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature