SOD PRODUCTION AND NUTRIENT EXTRACTION BY EMERALD ZOYSIAGRASS WITH SPLIT NITROGEN APPLICATIONS

Nitrogen is the nutrient that provides the best grass growth responses, and proper nitrogen fertilization can enable the formation of sod in less time and firm enough to be handled after harvest. The aim of this study was to evaluate production and nutrient extraction of Emerald zoysiagrass (Zoysia japônica Steud.) according to the splitting of nitrogen doses. Treatments consisted of five doses (0, 150, 300, 450 and 600 kg ha-1) divided in to four applications, provided the formation of Emerald zoysiagrass sods six months after the previous sod harvest. Nutrient extraction by Emerald zoysiagrass occurs in the descending order, em kg ha-1: N (207) > K (57) > (Ca) > S (27) > P (14) = Mg (14).

Sod production and nutrient extraction by emerald zoysiagrass with split nitrogen applications

Nitrogen is the nutrient that provides the best grass growth responses, and proper nitrogen fertilization can enable the formation of sod in less time and firm enough to be handled after harvest. The aim of this study was to evaluate production and nutrient extraction of Emerald zoysiagrass (Zoysia japonica Steud.) according to the splitting of nitrogen doses. Treatments consisted of five doses (0, 150, 300, 450 and 600 kg ha-1) divided in three or six applications., The N dose of 400 kg ha-1, divided in four applications, provided the formation of Emerald zoysiagrass sods six months after the previous sod harvest. Nutrient extraction by Emerald zoysiagrass occurs in the descending order, at kg ha-1: N (207) > K (57) > (Ca) > S (27) > P (14) = Mg (14).O nitrogênio é o nutriente que proporciona as maiores respostas no crescimento das gramas e a adubação nitrogenada adequada pode proporcionar a formação do tapete em menor tempo e firme para ser manuseado após a colheita. Objetivou-se com o trabalho avaliar a produção e a extração de nutrientes pelos tapetes da grama Esmeralda em função do parcelamento de doses de nitrogênio. O experimento foi realizado em fazenda de produção de grama, em Itapetininga, SP. Os tratamentos foram constituídos por cinco doses de N: 0, 150, 300, 450 e 600 kg ha-1, divididos em três ou seis aplicações. A dose de 400 kg ha-1 N, parcelada em quatro aplicações, proporcionou a formação de tapetes de grama Esmeralda, seis meses após a colheita do tapete anterior. A extração de nutrientes pela grama esmeralda obedece a seguinte ordem decrescente, em kg ha-1: N (207) > K (57) > Ca (45) > S (27) > P (14) = Mg (14)