| Electrical Conductivity of Nutrient Solutions “Conductividad eléctrica de las soluciones nutritivas" |
Web page in Spanish & in English |
EC FREE in the web |
| Colorimetric pH determination “Determinación de pH por colorimetría” |
Web page in Spanish & in English |
pH FREE in the web |
| Water supply and the nutrient solution |
Article in English | Published in Practical Hydroponics and Greenhouses magazine, issue No. 113, July-August 2010, pages 40-45 |
| Our own Tower of Babel |
Article in English | Waiting to be published in Practical Hydroponics and Greenhouses magazine, issue No. 115, November-December 2010 |
| Soilless growing of potato seeds in Peru | Article in English | Waiting to be published in Practical Hydroponics and Greenhouses magazine during next year |
