ISRC affiliate Antonio Mallarino is a professor of agronomy and nutrient management at Iowa State University where he has been a faculty member since 1993. Previously, he was an associate professor at the University of Uruguay until 1989 and a postdoctoral research associate and assistant scientist at Iowa State until 1992. His research and extension focus at Iowa State has been on agronomic and environmental issues of nutrient management with emphasis on phosphorus, potassium, lime and micronutrients.

Mallarino’s research program studies soil and plant-tissue sampling and testing, fertilizer and manure placement methods to increase nutrient use efficiency and crop yield, use of variable-rate technology, and phosphorus management impacts on water quality. He integrates conventional field plot and laboratory research with innovative on-farm research and demonstrations utilizing precision agriculture technologies developed in cooperation with producers, agribusiness and extension agronomists. Mallarino was an integral part of the teams that developed the Iowa Phosphorus Index and Iowa Nutrient Reduction Strategy.

"I had never worked with soybean before I came to Iowa State. My work in soybean as well as the collaboration with the Iowa Soybean Association and the ISRC have been very enjoyable high points of my research and extension professional career." Mallarino said.

Mallarino represents Iowa State on regional and national committees for Soil Testing and Plant Analysis for the North Central Region (NCERA-13) and Minimizing P Losses from Agriculture (SERA-17/IEG). He has served on the oversight committee for the North American Proficiency Testing Program and as an associate editor for the Agronomy Journal and the Soil Science Society of America Journal. He is a Fellow of the American Society of Agronomy (ASA) and the Soil Science Society of America (SSSA) and is a recipient of the W.L. Nelson Award for Diagnosis of Yield-Limiting Factors (ASA) and the SSSA Applied Research Award. He has published numerous peer-reviewed scientific articles and technical or extension articles and has mentored more than 50 graduate students.

Mallarino has a BS in Agronomy and Animal Science from the University of Uruguay, and an MS in Soil Fertility and Crop Production and Physiology and a PhD in Crop Production and Physiology from Iowa State University.