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Nitrogen fertilization strategies for xaraes and tifton 85 grasses irrigated in the dry season R. Bras. Zootec.
Queiroz,Domingos Sávio; Menezes,Maria Angélica Chamon; Oliveira,Rubens Alves de; Viana,Maria Celuta Machado; Silva,Edilane Aparecida da; Ruas,José Reinaldo Mendes.
An experiment was carried out to assess rates and nitrogen fertilization strategies on the forage yield using irrigation to supply the water deficit during the dry season. The grasses Cynodon spp cv. tifton 85 and Brachiaria brizantha cv. Xaraés were cultivated with nitrogen (N) at levels of 200 and 400 kg/ha according to strategies: 1) half dose applied during the rainy season (RS) and half during the dry season (DS); 2) 1/3 during the RS and 2/3 during the DS; 3) 2/3 during the RS and 1/3 during the DS; 4) all doses applied during the DS. In each season the dose was divided in three applications. Eleven harvests were conducted: six in the RS and five in the DS. When 2/3 of N was applied in the DS, forage yield in this period was statistically equivalent...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brachiaria brizantha; Cynodon spp; Nitrogen; Pasture irrigation.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800005
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