2011
DOI: 10.1590/s1413-70542011000300012
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Productivity and efficiency of nitrogen fertilization in maize under different levels of urea and NBPT-treated urea

Abstract: The management of nitrogen fertilization is complex due to the various transformations of the nitrogen that occur in the soilplant-atmosphere system, reducing the efficiency of the fertilization, productivity and the profit margin of the maize production areas. This study aimed to evaluate the effect of different levels of common urea and urea treat with NBPT [N-(n-butyl) thiophosphoric triamide] on the productivity and efficiency of the nitrogen fertilization in maize, correlated with simple economic analysis… Show more

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Cited by 19 publications
(12 citation statements)
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“…Several compounds have been found to reduce the conversion of urea [(NH 2 ) 2 CO] into ammonium and, ultimately, ammonia in soil (Roberts, 2014). The main substances and elements that have been used for this purpose are NBPT (Watson et al, 2008;Cantarella et al, 2008;Menendez et al, 2009;Pereira et al, 2009;Trenkel, 2010;Silva et al, 2011), copper (Cu) and boron (B) (Krajewska;Zaborska;Chudy, 2004;Heringer, 2008;Gabrovska;Godjevargova, 2009;Faria et al, 2013;Nascimento et al, 2013;Stafanato et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…Several compounds have been found to reduce the conversion of urea [(NH 2 ) 2 CO] into ammonium and, ultimately, ammonia in soil (Roberts, 2014). The main substances and elements that have been used for this purpose are NBPT (Watson et al, 2008;Cantarella et al, 2008;Menendez et al, 2009;Pereira et al, 2009;Trenkel, 2010;Silva et al, 2011), copper (Cu) and boron (B) (Krajewska;Zaborska;Chudy, 2004;Heringer, 2008;Gabrovska;Godjevargova, 2009;Faria et al, 2013;Nascimento et al, 2013;Stafanato et al, 2013).…”
Section: Introductionmentioning
confidence: 99%
“…A ureia tratada com o inibidor de urease NPBT (fonte UN) foi 8,09% superior à ureia comum (fonte U) corroborando os resultados obtidos por Scivittaro et al (2010), Silva et al (2011) e por Kaneko et al (2013) nas culturas de arroz, milho e algodão, respectivamente. Não houve diferenças entre as fontes U e UK (ureia revestida com polímeros).…”
Section: Resultsunclassified
“…Maiores produtividades de milho fertilizado com ureia tratada com NBPT também foram observadas por Silva et al (2011) em área sob sistema de cultivo convencional (preparo do solo), sendo superiores às obtidas com a utilização de ureia comum, nas doses de 180 e 240 kg ha -1 de N. Pereira et al (2009) avaliaram a utilização ureia comum tratada com inibidor de urease (NBPT) e recoberta com camadas de polímeros na cultura do milho safrinha. As maiores produtividades de grãos foram obtidas com a utilização de ureia tratada com NBPT porém os mesmos autores verificaram que o revestimento da ureia com polímeros não influenciou significativamente a produtividade em comparação com a ureia comum.…”
Section: Resultsunclassified
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“…For a side dressing concentration of 50 kg ha -1 , a response of 336 kg ha -1 grain yield occurred. Furthermore, grain yield increases related to N dose have been reported for maize (Farinelli;Lemos, 2012;Rimski-Korsakov et al, 2012;Silva et al, 2011). At 200 kg N, the maize yield was 12,017 kg ha -1 . However, in the absence of N fertilizer (control), the yield of 10,673 kg ha -1 was considerably high.…”
Section: Agronomic Performance and N Accumulation Of Maizementioning
confidence: 91%