Replication Data for: Biological N2-fixation and grain yield of pigeon pea: The role of biochar and conservation agriculture in low-input systems

This dataset contains original research data from Mubende (central Uganda), Alebtong and Gulu (Northern Uganda), for two growing seasons in 2022 and 2023. We investigated the effect of biochar and conservation agriculture on nitrogen derived from the atmosphere (Ndfa%), biological N2-fixation, biomass, grain yield, and soil parameters.