Economic and environmental valuation of the contribution of organic matter to the soil, through the calculation of available nitrogen, on the Santa Elisa farm, municipality of Jinotepe, with projection in the Golden Triangle of the department of Carazo. torreon [Internet]. 2024 Nov. 28 [cited 2025 Aug. 6];13(38):151-63. Available from: https://revistas.unan.edu.ni/index.php/Torreon/article/view/4719