Results of a 7-Year Conservation Agriculture Experiment at the San Miguel Tlacamama Research Platform, Oaxaca, Mexico (2017–2023)

Rainfed maize production in southern Mexico is constrained by climate variability and soil fertility limitations. This dataset contains seven years of data from a long-term field experiment conducted at the San Miguel Tlacamama Research Platform, Oaxaca, Mexico, evaluating the effects of crop diversification (maize monoculture vs. maize–cowpea intercropping), stubble management (remove vs. keep), and fertilization (organic vs. organic–mineral fertilization). The database includes agronomic management data (tillage, residue management, planting density, plant spacing, and fertilization), crop yield data (maize and cowpea grain yield, sowing, emergence, flowering, maturity, harvest, plant height, and lodging), soil fertility data, maize grain nutritional quality data, and economic data (production costs, gross margin, and net profit).