Título:	Changes in soil fertility and mineral nutrition of mango orchards in São Francisco Valley, Brazil.
Autor:	SILVA, J. P. S da NASCIMENTO, C. W. A. do SILVA, D. J. CUNHA, K. P. V da BIONDI, C. M.
Afiliación:	JOÃO P. S. DA SILVA, Universidade Federal Rural de Pernambuco; CLÍSTENES W. A. DO NASCIMENTO, Universidade Federal Rural de Pernambuco; DAVI JOSE SILVA, CPATSA; KARINA P. V. DA CUNHA, Universidade Federal do Rio Grande do Norte; CAROLINE M. BIONDI, Universidade Federal Rural de Pernambuco.
Año:	2014
Referencia:	Agrária - Revista Brasileira de Ciências Agrárias, Recife, v. 9. n. 1, p. 42-48, 2014.
Descripción:	This research aimed to analyse the soil fertility changes and macronutrient concentration in mango plantations in Petrolina, Pernambuco, Brazil. Samples of soil were collected at depths of 0-20 and 20-40 cm, and leaves of mango trees during vegetative growth were collected from 11 areas with different cultivation time spans (6, 7, 8, 9, 10, 11, 14, 16, 17, 19, and 26 years). Nearby areas under natural vegetation were sampled for reference. The chemical characteristics of soil evaluated were: pH; P, K, Ca, Mg; exchangeable Na and Al; H + Al; organic matter; sum of bases; base saturation; and total cation exchange capacity. The mango leaves were analysed for N, P, K, Ca, and Mg. The agricultural management practices adopted by the mango-producing companies promoted changes in soil fertility when compared with the reference areas. The concentrations of organic matter tended to increase in the crop areas. The organic matter caused increases in CEC and nutrient retention. High P values were observed in soils and plants owing to the excessive use of fertilizers. This may cause nutritional imbalance and contamination of water sources. The contents of N, P, K in the leaves of mango trees were nutritionally adequate
Thesagro:	Manga Adubação Fertilidade do Solo Matéria Orgânica Mangifera Indica
Palabras clave:	Vale do São Francisco Nutrição mineral Mango
DOI:	DOI:10.5039/agraria.v9i1a3466
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CPATSA)