2012
DOI: 10.1590/s0034-737x2012000400015
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Fontes, doses e formas de aplicação de fósforo para o algodoeiro no Cerrado da Bahia

Abstract: In the Cerrado of Bahia, there is a lack of information about sources, doses and forms of P application to the cotton crop that are important for increasing yield and fiber quality. In this study, an experiment was carried out in conventional tillage, using a 2 x 4 x 2 + 7 factorial scheme [P sources x doses x application forms plus seven additional treatments: combinations of proportions of sources and the control (without P)], with four replications. The P sources that were tested included the triple superph… Show more

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Cited by 9 publications
(8 citation statements)
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“…This result may reflect the increase in P availability (Valentinuzzi et al, 2015) when fertigation is used (Souza, 2012), since increment in inorganic phosphate (Pi) concentration in cytosol can cause a higher transference rate of phosphate sugars in chloroplasts, via exchange of triose-P/Pi in vascular membrane. This exchange benefits the glucose formation in cytosol, which may be broken by glycolysis cycle, entering in cellular respiration, or going to saccharose synthesis (Santos et al, 2012), main sugar compound of mature fruits of watermelon (Soteriou et al, 2014). The highest averages of vitamin C (VC) and maturation index (MI) (15.45 mg 100 mL -1 and 109.36, respectively) were obtained with P application in foundation and fertigation, independently of P dose (Table 3).…”
Section: Resultsmentioning
confidence: 99%
“…This result may reflect the increase in P availability (Valentinuzzi et al, 2015) when fertigation is used (Souza, 2012), since increment in inorganic phosphate (Pi) concentration in cytosol can cause a higher transference rate of phosphate sugars in chloroplasts, via exchange of triose-P/Pi in vascular membrane. This exchange benefits the glucose formation in cytosol, which may be broken by glycolysis cycle, entering in cellular respiration, or going to saccharose synthesis (Santos et al, 2012), main sugar compound of mature fruits of watermelon (Soteriou et al, 2014). The highest averages of vitamin C (VC) and maturation index (MI) (15.45 mg 100 mL -1 and 109.36, respectively) were obtained with P application in foundation and fertigation, independently of P dose (Table 3).…”
Section: Resultsmentioning
confidence: 99%
“…Dessa forma, em solos mais arenosos o P aplicado na semeadura do algodão torna-se mais disponível, devido ter poucos sítios de sorção no solo para promover sua fixação e torná-lo indisponível. Por outro lado, a limitação de P pode imprimir menor resposta produtiva do algodoeiro (SANTOS et al, 2012). ICRTíndice de clorofila total; ALTaltura de planta; MSCmassa seca de caule; MSFmassa seca de folhas; AFárea Foliar; NRnúmero de ramos; NCnúmero de capulhos; PCpeso capulhos e PRODprodutividade de algodão em caroço.…”
Section: Resultsunclassified
“…Nessa situação, a maior disponibilidade de P na fase reprodutiva da cultura, que apresenta maior demanda de P nessa fase. Porém, não houve incrementos produtivos com o parcelamento de P. Assim, o parcelamento de P no solo de cerrado também é dispensável (AQUINO et al, 2014;SANTOS et al, 2012).…”
Section: Resultsunclassified
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