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José E. Villarreal

0000-0003-1317-1960

Publications (4)

Soil Suitability for Coffee Cultivation in Non-traditional Areas of Panama-Herrera Province

José E. Villarreal, Marcos Riquelme Jaén, Iván Ramos Zachrisson, Ananias Torres, Johar Pérez & Yaira De León · Asian Journal of Soil Science and Plant Nutrition · 2025

The objective of this research was to determine the suitability of soils for coffee cultivation in the province of Herrera, Republic of Panama. Planting robusta coffee is gaining greater interest among Panamanian farmers as an alternative for soil conservation. On 19 farms in the...

Open access Research Article 10.9734/ajsspn/2025/v11i1459

Characterization of Soils in Coffee Productive Areas in the Provinces of Cocle and Veraguas-Republic of Panama

José E. Villarreal, Iván Ramos Zachrisson & Marcos Rodrigo Riquelme Jaén · International Journal of Plant & Soil Science · 2024

The objective of the work was to characterize the properties of the soils of coffee-producing farms in the provinces of Cocle and Veraguas that allow the preparation of regionalized fertilization cards according to the edaphoclimatic characteristics of each area. Planting robusta...

Open access Research Article 10.9734/ijpss/2024/v36i64639

Heavy Metals in Water, Soils and Sediments of La Villa River Basin- Panama

José E. Villarreal, Adolfo Santo Pineda, Jhon Villalaz Pérez & Iván Ramos Zachrisson · International Journal of Plant & Soil Science · 2021

Determine the concentration of heavy metals in water, sediments, and crops within the La Villa river basin, Herrera and Los Santos provinces, republic of Panama. La Villa river Basin, south central of Panama, in the rainy season of 2016 (May to November) and in the dry season of...

Open access Research Article 10.9734/ijpss/2021/v33i1830570

Spatial Behavior of Soil Erodibility in the La Villa River Basin, Panama

Lwonel Agudo Martínez, José E. Villarreal, Jhon Villalaz Pérez & Iván Ramos Zachrisson · International Journal of Plant & Soil Science · 2021

Introduction: Soil erodibility is an important factor in understanding the erosion that takes place in a territory. This is a parameter that can behave erratically in small spaces, but that describes a trend in larger spaces. Aim: Determine the K factor of soil erodibility in the...

Open access Research Article 10.9734/ijpss/2021/v33i2330745