TAMASA Nigeria. Nutrient omission trials (NOT) stover nutrient analysis, 2015

This dataset consists of Result of stover or straw nutrient analysis for the 95 on-farm field trial sites x 2 varieties (Hybrid and OPV) x 6 treatments (Control, PK, NK, NP, NPK, NPK+S+Ca+Mg+Zn+B) . The dataset is divided into six sheets; Metadata, variable, Sites information, Raw Data, Data Summary and Data History. 'Metadata' give summary description of the dataset. 'Variables' give the name, unit, description and method of determination of the variables in the dataset. 'Site information' gives description of the study and sampling sites, 'Raw Data' contain the raw dataset, Data summary gives the summary statistics of each of measured variable in the raw dataset. And 'Data History' describe the historical changes and exchange in the raw dataset