Leaf area data were fitted to an exponential model: l = y0+a×e−bx, where l is the leaf area (cm2 plant−1) at different seed rates (kg ha−1) x, y0 is the minimum leaf area at seed rate 100 kg ha−1, y0+
Appropriate planting density and nitrogen (N) supply are critical factors optimizing yield in crop cultivation. To advance the knowledge of maize plants under different density and N rate combinations