2007
DOI: 10.1590/s0102-05362007000300016
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Eficiência e efeito residual de biofertilizantes de rochas com PK e enxofre com Acidithiobacillus em alface

Abstract: Entre agosto e novembro de 2005 foi realizado um experimento em campo, com dois plantios consecutivos de alface (cv. Grand Rapids), em solo do Cariri cearense, visando avaliar a eficiência da fertilização com biofertilizantes de rocha fosfatada (BP) e potássica (BK), em comparação com os fertilizantes minerais superfosfato simples(SFS) e cloreto de potássio (KCl). Os fertilizantes minerais foram aplicados nos níveis recomendados com base na análise de solo para alface (SFS e KCl), e os biofertilizantes em três… Show more

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Cited by 7 publications
(4 citation statements)
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“…The K content of ash in the present study was two to three times higher than that found in spruce ash and the mean ash value of a large database in Sweden [51,52]. Basak et al [53] and Lima et al [54] characterized mica feldspar and biotite rock powders, respectively, and obtained K contents close to 16 g kg −1 , which, when compared with the contents presented in this study for wood ash and crushed seed residue, are six, and two times lower, respectively. When compared with soluble mineral sources such as KCl, the K contents in wood ash and crushed seed residue are about five times smaller.…”
Section: Chemical Properties Of Agroindustrial and Heavy Metal Concencontrasting
confidence: 57%
“…The K content of ash in the present study was two to three times higher than that found in spruce ash and the mean ash value of a large database in Sweden [51,52]. Basak et al [53] and Lima et al [54] characterized mica feldspar and biotite rock powders, respectively, and obtained K contents close to 16 g kg −1 , which, when compared with the contents presented in this study for wood ash and crushed seed residue, are six, and two times lower, respectively. When compared with soluble mineral sources such as KCl, the K contents in wood ash and crushed seed residue are about five times smaller.…”
Section: Chemical Properties Of Agroindustrial and Heavy Metal Concencontrasting
confidence: 57%
“…Sulfur is one of the 16 essential elements involved in plant growth and development, which can actively participate in the maintenance of the physiological function of the living organisms, regulate plant metabolism [ 6 , 7 , 8 ], and may also improve both the yield and the quality of kiwifruit [ 9 , 10 ]. Sulfur-induced resistance (SIR) denotes the reinforcement of natural resistance in the plants against pathogens by triggering different metabolic processes [ 11 , 12 , 13 , 14 , 15 ]. It can be directly or indirectly involved in plant disease resistance in various ways by participating in physiological and biochemical processes such as expression of plant cytoplasmic membrane structure, modulation of the protein metabolism, and regulation of enzyme activity [ 16 , 17 , 18 , 19 ].…”
Section: Introductionmentioning
confidence: 99%
“…Biofertilizer produced with organic matter (earthworm compost) has been shown to increase the availability of nutrients in various crops, especially phosphorus, potassium, calcium, magnesium, and sulfur (Lima, Stamford, Santos, Lira Junior, & Dias, 2007;Stamford, Lima, Santos, & Dias, 2006;Stamford, Izquierdo, Fernández, & Moreno, 2008;Stamford et al, 2011). Nitrogen is also present in organic matter, although not in quantities that promote adequate nutrition and plant yield similar to an application of soluble fertilizer (Lima et al, 2010).…”
Section: Introductionmentioning
confidence: 99%