Autoria: LOPES, M. N.; CÂNDIDO, M. J. D.; SILVEIRA, W. M.; MARANHÃO, T. D.; SOARES, I.; POMPEU, R. C. F. F.; SILVA, R. G. da; CARNEIRO, M. S. de S.

Resumo: Abstract: The present study evaluated the accumulation and export of nutrients in cactus pear (Opuntia ficus-indica) cv. Gigante, fertilized with combinations of nitrogen (10, 70, 100, 130, and 190 kg ha -1 year -1 N) and phosphorus (10, 70, 100, 130, and 190 kg ha -1 year -1 P2O5) under annual and biennial harvests, in Quixadá and Tejuçuoca, using a split-plot randomized block design with four replications. In Quixadá, under annual and biennial harvests, the following orders of accumulation of macronutrients (in kg ha -1 year -1) were found, respectively: K (98.8) > Ca (87.2) > N (46.7) > Mg (26.8) > S (18.4) > P (2.04) and Ca (33.5) > K (31.1) > S (18.6) > N (12.9) > Mg (10.5) > P (0.81). In Tejuçuoca, under annual and biennial harvests, the orders of accumulation of macronutrients were, respectively: K (146.5) > Ca (204.6) > N (128.1) > Mg (75.8) > S (50.3) > P (3.7) and K (397.2) > N (191.3) > S (241.2) > Ca (167.8) > Mg (131.0) > P (14.1). The maintenance/production fertilization in cactus pear should be planned according to productive potential, fertilization and harvest managements, and cultivation region, based on nutritional requirement and considering the nutrient recovery efficiency.

Ano de publicação: 2018

Tipo de publicação: Artigo de periódico

Unidade: Embrapa Caprinos e Ovinos

Palavras-chave: Acúmulo de macronutriente, Crescimento, Exigência Nutricional, Fertilization, Harvest frequency, Macroelemento, Nutrient requirements, Nutriente, Nutritional demand, Nutrição Vegetal, Palma Forrageira, Plant micronutrients, Plant nutrition