Development of a methodology to characterize the nitrogen nutritional status of open field processing tomato by means of fast indicators

Fecha de publicación: 12/09/2022
Fuente: ISHS (International Society for Horticultural Science)
Post date: Monday 12 September 2022
ISHS Secretariat

José María Vadillo received his BS degree in Agricultural Engineering at the University of Extremadura, Spain, in 2017. After graduation, he began his master’s studies in Agronomic Engineering and Agri-food Chain Management Engineering at the University of Cordoba, Spain, finishing in 2020. He is currently a student of the Food Science PhD programme at the Centro de Investigaciones Científicas y Tecnológicas de Extremadura (CICYTEX), Spain, under the supervision of Dr. Henar Prieto and Dr. Carmen Giménez. His research focused on the evaluation of the response of horticultural crops (pepper, broccoli and processing tomato) to nitrogen fertilisation. Farmers need to be made aware of the major environmental problems that exist because of over fertilisation. Nitrate concentration in groundwater is increasing because of leaching from agriculture. This environmental problem is not an immediate danger but is getting worse. Food producers must be provided with information and tools on efficient use of fertilisers to solve this problem without reducing food production. At the XVI International Symposium on Processing Tomato, José María presented some of his research on the relationships between rapid measurements of chlorophyll and nitrate content in sap versus the reference indicator nutritional nitrogen index (NNI). The main aim was to determine the threshold values of these rapid measurements to help technicians and producers in monitoring the nutritional status of their crops in an easier, quicker, and safer way. This will reduce production costs for farmers and reduce groundwater contamination by nitrate leaching. José María presented these threshold values for each phenological moment of the crop.
José María Vadillo won the ISHS Young Minds Award for the best oral presentation at the XVI International Symposium on Processing Tomato, which was held virtually in Argentina in March 2022.
José María Vadillo, Centro de Investigaciones Científicas y Tecnológicas de Extremadura (CICYTEX), 06187 Guadajira, Spain, e-mail:
The article is available in Chronica HorticulturaeTags: processing tomatoCategories: Young Minds Award Winners