Y. Espinoza

Land use effects on microbial biomass C, β-glucosidase and β-glucosaminidase activities, and availability, storage, and age of organic C in soil

V. Acosta‐Martínez, D. Sotomayor-Ramírez, Y. Espinoza, 2009, Biology and Fertility of Soils.

Short-term tillage practices on soil organic matter pools in a tropical Ultisol

D. Sotomayor-Ramírez, Y. Espinoza, R. Ramos-Santana, 2006 .

Biological N2-fixation by three tropical forage legumes and its transfer to Brachiaria humidicola in mixed swards

Y. Espinoza, O. Guenni, J. Gil, 1997 .

Effect of shaded on the production and quality of guinea grass (Panicum maximun) in a silvopastoril system

F. Ovalles, Y. Espinoza, N. Obispo, 2008 .

Soil aggregation and organic carbon fractions in the Rio Grande de Arecibo watershed.

D. Sotomayor-Ramírez, Y. Espinoza, 2010 .