Effect of tillage on the structural stability and resistance to penetration of a Inceptisol planted with arracacha (Arracacia xanthorrhiza Bancroft) in Boyaca Tekijä Pinto-Acero, Yomaira Liney, Álvarez-Herrera, Javier Giovanni, Forero-Ulloa, Fabio Emilio

Aiheet:

Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems Tekijä Dos Santos, Luiz Henrique, Loss, Arcângelo, Lourenzi, Cledimar Rogério, Souza, Monique, Gonzatto, Rogério, Kurtz, Claudinei, Brunetto, Gustavo, Comin, Jucinei José

Aiheet:

Índices de calidad de agua en México y Colombia. Evolución, criterios y cambios Tekijä Gaytán-Alarcón, Ana Patricia, González-Elizondo, María del Socorro, Vergara Gómez, Inés, Díaz Lagos, Mercedes, Alarcón Herrera, María Teresa

Aiheet: “…Aggregation…”

Total nitrogen and humic substances in aggregates of soils with onion crops under no-tillage and conventional tillage systems Tekijä Santos, Luiz Henrique dos, Loss, Arcângelo, Lourenzi, Cledimar Rogério, Souza, Monique, Gonzatto, Rogério, Kurtz, Claudinei, Brunetto, Gustavo, Comin, Jucinei José

Aiheet: