@article{Irizarry_Rivera_1985, title={Nutrient Uptake and Dry Matter Production by Intensively Managed Yams Grown In an Ultisol}, volume={69}, url={https://revistas.upr.edu/index.php/jaupr/article/view/7320}, DOI={10.46429/jaupr.v69i1.7320}, abstractNote={Intensively managed yams grown in a Ultisol and fertilized with 2,240 kg of 10-5-20-3/ha yielded 51.6 T of marketable tubers/ha, containing 18 T of edible dry matter, over an 8-month crop cycle. Uptake of nutrients by the yams was 190, 25, 215, 90 and 35 kg/ha of N, P, K, Ca, and Mg, respectively.}, number={1}, journal={The Journal of Agriculture of the University of Puerto Rico}, author={Irizarry, H. and Rivera, Edmundo}, year={1985}, month={Jan.}, pages={1–9} }