Revista Caatinga (Jan 2009)

NÍVEIS DE ADUBAÇÃO PARA A CULTURA DO MILHO SAFRINHA

  • Silvio José Bicudo,
  • Simério Carlos Silva Cruz,
  • Francisco Rafael da Silva Pereira,
  • Elizeu Luiz Brachtvogel,
  • José Antonio da Silva Madalena

Journal volume & issue
Vol. 22, no. 2
pp. 23 – 30

Abstract

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The objective of this research was to evaluate the effect two hybrids of maize, cultivated on "safrinha" conditions, in different rates of 08-28-16 formula. The treatments consisted of two hybrids of maize (DKB747 e CO32) cultivated in no-tillage system (SPD) and five rates of fertilizer 08-28-16 (100, 200, 300, 400 e 500 kg ha-1). The randomized block design was used, with subdivided splots and four replications. The maize was sowed on 02/03/2006 using seeder pneumatic of mechanics traction, with four individual lines, spaced of 0.45 m During maize flowering period, morphologic components were evaluated; the harvest occurred on 150 days after the sowing, when the production components were evaluated. The hybrid of maize DKB747 showed greater efficiency, while the hybrid of maize CO32 was more responsive to rates used. NPK rates on 08-28-16 formula above 300 kg ha-1 are not necessary to the hybrid CO32 cultivated on "safrinha" conditions, in Botucatu region, state of São Paulo.