Determining nitrogen topdressing rates in accordance with actual seedling density and crop nitrogen status in direct‐seeded rice

BACKGROUND Adjusting nitrogen (N) input based on actual seedling density (ASD) and plant N status is a practical approach for improving the yield stability of direct‐seeded rice. However, the adjustment of topdressing N rates has been empirical in the past. This study aimed to establish a quantitati...

Ausführliche Beschreibung