2026-06-27http://hdl.handle.net/123456789/26084nitrogen fertilizersnpk fertilizersnutrient uptakephosphorus fertilizersplant water relationspotassium fertilizersrainfed lowland riceuse efficiencyyieldsthailandInternal efficiency, nutrient uptake, and the relation to field water resources in rainfed lowland rice of northeast ThailandJournal Article