Título:	Phosphorus and silicon fertilizaer rates effects on dynamics of soil phosphorus fractions in oxisol under common bean cultivation.
Autoria:	ALOVISI, A. M. T. FURTINI NETO, A. E. SERRA, A. P. ALOVISI, A. A. TOKURA, L. K. LOURENTE, E. R. P. SILVA, R. S. da SILVA, C. F. B. da FERNANDES, J. S.
Afiliação:	ALESSANDRA MAYUMI TOKURA ALOVISI, UFGD; ANTONIO EDUARDO FURTINI NETO, UFLA; ADEMAR PEREIRA SERRA, CNPGC; ALVES ALEXANDRE ALOVISI, UFGD; LUCIENE KAZUE TOKURA, Universidade Estadual do Oeste do Paraná; ELAINE REIS PINHEIRO LORUENTE, UFGD; ROBERVALDO SOARES DA SILVA, UFGD; CAMILA FARAH BORGES DA SILVA, UFGD; JUCINEI SOUZA FERNANDES, UFGD.
Ano de publicação:	2016
Referência:	African Journal of Agricultural Research, v. 11, n. 30, p. 2697-2707, July, 2016.
Conteúdo:	The purpose of this research was to evaluate the effects of P and Si fertilizer rates in dynamic of P fractions in clay soil under greenhouse. The research was carried out in a Dystroferric Red Latosol of a very loamy texture from Lavras city, Minas Gerais State, Brazil. The experimental design was entirely randomized, arranged in 4 × 3 factorial design, with four repetitions. The treatments included four inorganic fertilizer P rates (0, 110, 330 and 560 mg dm-3) and three Si rates (0, 110, 330 and 560 mg dm-3). The preview application of Si fertilizer did not contribute to decrease P desorption. Possibly, the silicate has lower affinity with the bound sites of adsorption than phosphates. The effects of inorganic fertilizer P were higher in increasing the moderately labile and labile P inorganic fractions. Among the organic P fractions, the NaHCO3-Po fraction was the only one that contributes to plant nutrition. The Hedley sequential phosphorus fractionation promoted information about different pools where P was accumulated in the soil after common bean cultivation. The highest amount of P was obtained in stable P fraction, followed by moderately labile and labile P fraction. The moderately labile P fraction decreased after common bean cultivation possibly due to the time of P contact in the soil and redistribution to stable P fraction. The labile form was the lowest P pool in soil; nevertheless the increase in fertilizer P rates increases the amount of P content in labile fraction.
Thesagro:	Phaseolus Vulgaris
Palavras-chave:	Nutrients interaction
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPGC)