Kumar, Ashok, and Alex G. Alexander. “EFFECTS OF MANGANESE DEFICIENCY ON LEAF CHLOROPHYLL AND CERTAIN ENZYMES IN SUGARCANE RAISED IN SAND CULTURE”. The Journal of Agriculture of the University of Puerto Rico 56, no. 1 (January 1, 1972): 75–78. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10889.