Response nitrogen and potassium fertilization in Brachiaria brizantha pasture formed in with corn intercropping

Authors

  • Fábio Kempim Pittelkow Universidade Federal do Mato Grosso, Cuiabá, MT
  • Adriano Jakelaitis Instituto Federal Goiano, Urutaí, GO
  • Emerson Alexandrino Universidade Federal do Tocantins, Departamento de Zootecnia, Araguaína, TO
  • Abdias Alves de Oliveira Universidade Federal de Rondônia, Rolim de Moura, RO
  • Lenita Aparecida Conus Universidade Federal da Grande Dourados, Dourados, MS
  • Cleberson Lima dos Santos Universidade Federal de Rondônia, Rolim de Moura, RO
  • Rafael Teles Feitosa Universidade Federal de Rondônia, Rolim de Moura, RO

Keywords:

competition, forage grass, agriculture-cattle raising integration

Abstract

The objective of this study was to evaluate the effects of nitrogen and potassium fertilization in corn intercropped (DOW657 and AG2040) and Brachiaria brizantha cv. Vitória upon production of intercropped species and the pasture formation. Two field experiments were conducted, in which the cv. Vitória was intercropped with corn in a substitutive design (EXP1), sowed at the corn reproductive period; and in the other experiment the forage seeding was made as the same time as the corn's (EXP2). The EXP1 was conducted in a ramdonmized blocks four replications, arranjed in a factorial scheme 2x5+2. The first factor was the nitrogen doses (30+90+0 and 30+90+30 kg ha-1 of N), and the second factor was the potassium doses (25+25+0; 50+0+0;50+25+0; 50+50+0 and 50+25+25 kg ha-1 of K2O), all distributed along the seed line, in top dressing fertilization (4-6 expanded corn leave) and in the harvest, respectively. In the EXP2 the same design was adopted, but in a 2x5+3 factorial scheme, wich corresponded to the N and K fertilizations, similar to the EXP1, plus the corn monocultives and the fertilized and non-fertilized cv. Vitória. There were no significant effects of the fertilizer applications in the variables analyzed in the intercropped corn, independent of the forage seeding. Despite that, in the simultaneous seeding, the corn held the growth of the pasture. Bigger doses and applications of fertilizers in cv. Vitória intercropped increased the forage yield, independent of the seeding period.

Downloads

Download data is not yet available.

Published

2009-02-13

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Response nitrogen and potassium fertilization in Brachiaria brizantha pasture formed in with corn intercropping. (2009). Bulletin of Animal Husbandry, 66(2), 83-93. http://bia.iz.sp.gov.br/index.php/bia/article/view/1096

Most read articles by the same author(s)

<< < 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 > >>