International Institute of Tropical Agriculture

Genotype by environment interaction analysis for fall armyworm (Spodoptera frugiperda) response and yield stability of maize hybrids (Zea maize L.) in southern Ethiopia

Abstract This study lies in the simultaneous evaluation of maize hybrids for grain yield stability and FAW tolerance under natural infestation conditions in the Gamo lowlands, an area where such integrated assessments are limited. The study also provides valuable insights into th...

Soil organic carbon, texture and oxide-associated processes regulate phosphorus availability across Nigerian agroecosystems

Abstract Background and aims Phosphorus (P) limitation constrains productivity in tropical soils, yet the combined roles of soil organic carbon (SOC), texture, reactive minerals, and acidity in regulating plant-available P remain insufficiently quantified across diverse agricultu...

Conservation agriculture practices and labor productivity in maize production: Evidence from smallholders in Malawi and Zambia

This study estimates the relationship between adoption of CA practices and labor productivity in maize production among smallholder farmers in Malawi and Zambia, using data from 1,120 randomly sampled households and 4,311 plots. We define CA practice adoption as using minimum til...