Robinson, J.B.D.2015-07-172015-07-171969Robinson, J. B. D. (1969). Advisory Soil or Plant Analysis and Fertilizer Use. East African Agricultural and Forestry Journal. XXXIV (4), 449-456.0012-8325https://kalroerepository.kalro.org/handle/0/5265enhttp://creativecommons.org/licenses/by-nc/3.0/Advisory Soil or Plant Analysis And Fertilizer UsePart IV-Evaluation Of Plant Analysis With Maize Yield DataJournal ContributionSoilPlantsanalysisMaizeFertilizers