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Efeito residual de calcário, nitrogênio e zinco na produção de matéria seca de Brachiaria decumbens em condições de campo
Other Titles: 
Residual effect of lime, nitrogen and zinc on dry matter production of Brachiaria decumbens in field conditions
  • Universidade Estadual Paulista (UNESP)
  • Coordenadoria de Assistência Técnica Integral
The balance of liming and fertilization practice with nitrogen and zinc could affect the production of the pasture. Thus, the present work has as objective to evaluate the residual effect of the application of calcareous rock, nitrogen, and zinc on the dry matter production of Brachiaria decumbens, during three cuts. For this, an experiment was installed in Selvíria, Brazil, on a distrofic red Latosol, from october 1997 to may 1998. The experimental design was randomized blocks, in a factorial project 3×3×2, with four repetitions. The treatments were three doses of nitrogen: 0, 50, and 100 kg/ha, three doses of lime: 0, 267, and 556 kg/ha, corresponding to 41, 50, and 60% of the levels of base saturation, respectively, and two doses of zinc 0 and 5 kg/ha, applied in the first year and reapplied in the second year, except for the limestone. Four cuts were done in the grass at 10 cm of height, with intervals of 49 days, to obtain the dry matter production. The limestone application in the first year did not provide to residual effect on the production of Brachiaria decumbens. However, the nitrogen fertilization increased the dry matter production of the grass. The application of zinc in the first year and the reapplication in the second year did not result in a productive response of B. decumbens. © 2009 Instituto Nacional de Investigaciones Agricolas INIA.
Issue Date: 
Zootecnia Tropical, v. 26, n. 2, 2008.
  • Fertilizantion nitrogen
  • Grass
  • Limestone
  • Micronutrient
  • Restauration
  • Brachiaria
  • Urochloa brizantha
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Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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