Vol 50, No 2 (2023)

Table of Contents

Review Articles

A review of local-scale agricultural sustainability in the coffee regions of Mexico
Jesús Gómez-Velázquez, Alfonso Vásquez-López, Juan Regino-Maldonado, Silvia N. Jurado-Celis

Research Paper

Prediction of the nutritive value of whole plants and morphological fractions of forage sunflower by near-infrared reflectance spectroscopy and empirical equations
Sonia Pereira-Crespo, Adrián Botana, Marcos Veiga, Laura González, César Resch, Roberto Lorenzana, María del Pilar Martínez-Diz, Dalia Andrea Plata-Reyes, Gonzalo Flores-Calvete
Spatial variability of soil organic carbon fractions in areas under cultivation of Amazonian species in the southern region of Amazonas state, Brazil
José Igor Silva Praça Igor Silva Praça, Bruna Firmino Enck, Milton Cesar Costa Campos, Marcos Gervasio Pereira, Fernando Gomes Souza, Bruno Campos Mantovanelli, Elilson Gomes Brito Filho, Laercio Santos Silva, Jose Mauricio Cunha

Research Notes

Behavioral responses of vicuñas to human activities at priority feeding sites associated with roads in the highland desert of northern Chile
Nicolás Fuentes-Allende, Claudio S Quilodrán, Andrés Jofré, Benito A González
Measuring the length of the juvenile phase and corm growth in the Chilean endemic geophyte Conanthera bifolia Ruiz et Pavon
Flavia Schiappacasse Canepa, Paola Yáñez, Patricio Peñailillo, Enrique Misle
Validation of a new method for the rapid determination of free sulfur dioxide in wine
Edmundo Bordeu, Lorena Macarena Villalobos, Natalia Brossard