DeValerio, J., D. Nistler, R. Hochmuth, and E. Simonne. “Fertigation for Vegetables: A Practical Guide for Small Fields: HS1206/HS1206, 10/2012”. EDIS, vol. 2012, no. 10, Oct. 2012, doi:10.32473/edis-hs1206-2012.