1963
DOI: 10.1590/s0006-87051963000100054
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Competição entre fertilizante nitrogenado orgânico e mineral na cultura da batatinha

Abstract: Procurou-se determinar se a ação fertilizante da torta de mamona se faz sentir sòmente pelo seu nitrogênio, ou também pelo fósforo e potássio que estão contidos nesse material, em ensaio com a cultura da batatinha (Solanum tuberosum L.). Pelos resultados obtidos no ensaio, pôde-se concluir pela melhor reação da torta de mamona, que em todos os tratamentos suplantou significativamente o sulfato de amônio. Êsse melhor efeito da torta não se fêz sentir sòmente na produção, mas também na classificação comercial do… Show more

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“…S o m e s t u d i e s h a v e a l r e a d y demonstrated the beneficial effect of castor bean cake, such as in potato (Gomes et al, 1963), lettuce (Souza, 2008) and banana (Lins et al, 2013), but applications were made before planting. Applied in top dressing, it resulted in a linear increase in beet production, the higher the dose (Silva et al, 2016), however, it did not present significant effects on the production of onion bulbs in a soil of high initial fertility (Santos et al, 2012).…”
Section: Resultsmentioning
confidence: 99%
“…S o m e s t u d i e s h a v e a l r e a d y demonstrated the beneficial effect of castor bean cake, such as in potato (Gomes et al, 1963), lettuce (Souza, 2008) and banana (Lins et al, 2013), but applications were made before planting. Applied in top dressing, it resulted in a linear increase in beet production, the higher the dose (Silva et al, 2016), however, it did not present significant effects on the production of onion bulbs in a soil of high initial fertility (Santos et al, 2012).…”
Section: Resultsmentioning
confidence: 99%