Yield constraint analysis of rainfed lowland rice in Southeast Asia

Rainfed lowland rice yields are low and unstable due to uncertain water supply, low soil fertility, and pest infestation. To design management interventions aimed at increasing rainfed rice production, the magnitude of and variation in yield gaps associated with various constraining factors need to be assessed.

This study aimed at improved understanding of spatial and temporal variations in water status and nutrient availabilities, and their effects on crop growth and yield for rainfed rice along toposequences in SE Asia, as a basis for the design of improved crop management strategies...