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MINERAL NITROGEN SUBSTITUTION BY CHICKEN LITTER IN SUCCESSION OAT/CORN

By Loana Bergamo dos Santos, Deise Dalazen Castagnara, Lucas Guilherme Bulegon, Tiago [UNESP] Zoz, Paulo Sergio Rabello de Oliveira, Affonso Celso Goncalves and Marcela Abbado Neres

Abstract

The constant search for sustainability of production systems have driven research to find alternatives to the problems arising from the intensified use such systems. In this context the present work aimed study the effects of substitution of mineral nitrogen by chicken litter in oat and corn crop in succession and the chemical characteristics of soil. The study was conducted during the period May 2009 to March 2010 in area of Oxisol. The design was of randomized block with four replications. The six treatments were obtained by a combination of different amounts of chicken litter (0, 1500, 3000, 4500, 6000 and 7500 kg ha(-1)) applied 30 days before the sowing of oats combined with the mineral nitrogen applied in coverage in corn (311.1, 257.8, 202.2, 148.9, 95.6, 42.2 kg ha(-1) of urea), for the total supply of 140 kg ha(-1) of nitrogen (N). The application of poultry litter in oat promotes increased the production of dry matter, and content and accumulation of N. The mineral nitrogen substitution by chicken litter increases the yield of corn crop. The use of poultry litter alters the chemical properties of soil, increasing the levels of organic matter, exchangeable Al and acidity potential. However lowers the pH, K, Ca, Mg, sum of bases and base saturation

Topics: Avena strigosa, Zea mays, Nitrogen, Organic matter
Publisher: Univ Federal Uberlandia
Year: 2014
OAI identifier: oai:agregador.ibict.br.RI_UNESP:oai:repositorio.unesp.br:11449/117784
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