WINTER COVER CROPS AND NITROGEN TO CORN IN NO-TILLAGE SYSTEM

Authors

  • Igor Quirrenbach de CARVALHO Fundação ABC
  • Mauro José Stegg da SILVA
  • Amir PISSAIA UFPR
  • Volnei PAULETTI Fundação ABC
  • João Carlos POSSAMAI UFPR

DOI:

https://doi.org/10.5380/rsa.v8i2.8367

Keywords:

plantas de cobertura, rotação de culturas, matéria seca, manejo do solo

Abstract

In the southern of Brazil, with the increase of corn production in no-tillage system, some winter cover crops are being evaluated, the purpose is to obtain a soil cover that benefit not only the corn cultivated but also the no-tillage. The objective of this work was to evaluate the effects of four winter cover crops (black oat, forage turnip, common vetch and ryegrass) and four combinations (oat + vetch, oat + turnip, vetch + turnip and oat + vetch + turnip) with and without nitrogen fertilizer in post-emergency applied in the corn (0 and 108 kg ha-1). The experiment was carried in Castro, Paraná state, in a Melanic Gleysoil, in the agricultural year of 2001/2002. Dry matter cover crops were increased with black oat presence. Independent of cover crops, the post-emergency nitrogen in corn provided increase on plant height, ear height, stem diameter, number of ear per plant, mass of grains per ear, mass of thousand grains and corn grain yield. The combination black oat and turnip resulted in a larger corn grain yield than the single vetch.

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Published

2007-08-03

How to Cite

CARVALHO, I. Q. de, SILVA, M. J. S. da, PISSAIA, A., PAULETTI, V., & POSSAMAI, J. C. (2007). WINTER COVER CROPS AND NITROGEN TO CORN IN NO-TILLAGE SYSTEM. Scientia Agraria, 8(2), 179–184. https://doi.org/10.5380/rsa.v8i2.8367

Issue

Vol. 8 No. 2 (2007)

Section

Soil Science

License

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