maize, yield improvement, planting density, split fertilization, Drip irrigation
nitrogen application rate, nitrogen accumulation, spring maize, high-yield
Straw Return, Organic Fertilizer Application, Maize, Yield Enhancement, Carbon sequestration and emission reduction
planting density, Maize quality, Protein test weight, Starch test weight, Pricing model, economic benefits
Drip-irrigated maize, Planting density, Nitrogen fertilizer, Source-sink relationship, Yield
Maize, Nitrogen application rate, nitrogen use efficiency, Nitrous oxide emissions, High-density planting with precision regulation
Spring maize, Grain yield, Cultivars, Yield variational factors, Northwest China