Impact Of Inorganic Nitrogenous Fertilizers And Farmyard Manure Combination On Nitrogen Content By Grain, Straw At Harvest And Protein Content Of Grain In Ppm. Journal of Pharmaceutical Negative Results, [S. l.], p. 3081–3085, 2023. DOI: 10.47750/pnr.2023.14.03.387. Disponível em: https://pnrjournal.com/index.php/home/article/view/9427.. Acesso em: 7 jun. 2026.