This experiment was carried out in a greenhouseat the Animal Science Department/UFRPE and aimed to evaluate the fertilizationand nematicide effects on the chemical composition of cactus forage cv. "Gigante"suffering chlorotic symptoms. Chlorotic cladodes of Cactus forage cv. "Gigante"were used as planting material and they were collected at the Caruaru ExperimentalStation/IPA in the same location where those symptoms were previously observed.The treatments tested the presence or absence of macronutrients, micronutrients,and nematicide. A completely randomized block design was used and the treatmentswere replicated four times. No significant differences were found for dry matter,K, Ca, and Mg concentration. Significant differences were observed for N, P,and S concentrations. The mean values for DM, N, P, K, Ca, Mg, and S were 7.29,1.19, 0.17, 3.31, 1.84, 0.59, and 0.17%, respectively. Micronutrients and nematicideaddition did not alter the N, P, K, Ca, Mg, and S concentrations. Younger cladodespresented higher concentration of N, P, and K. Chemical composition was affectedonly by N, P, and S.
