The effect of swine wastewater in the development and quality of seedling of Eucalyptus urophylla/O efeito da agua residuaria da suinocultura no desenvolvimento e qualidade de mudas de Eucalyptus urophylla

This study aimed to evaluate the effect of different proportions of ARS (Swine Wastewater) and two ages of seedlings of Eucalyptus urophylla in their morphological quality. The experiment was conducted at the Experimental Hydraulics, Irrigation and Drainage Department of Agricultural Engineering, Fe...

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Published inCiência florestal Vol. 24; no. 1; p. 127
Main Authors Batista, Raquel Oliveira, Ma, de Paiva, Haroldo Nogueira, Batista, Rafael Oliveira, Cecon, Paulo Roberto
Format Journal Article
LanguagePortuguese
Published Universidade Federal de Santa Maria 01.01.2014
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Summary:This study aimed to evaluate the effect of different proportions of ARS (Swine Wastewater) and two ages of seedlings of Eucalyptus urophylla in their morphological quality. The experiment was conducted at the Experimental Hydraulics, Irrigation and Drainage Department of Agricultural Engineering, Federal University of Vicosa (UFV), in Vicosa, Minas Gerais state, in a greenhouse. The experiment consisted of 10 treatments in a factorial 5 x 2 (5 proportions of ARS supplemented with nitrogen fertilization and seedling age 2) with different number of repetitions, and the experimental design was a randomized block. To track the growth of seedlings of the species studied were evaluated at 75 and 90 days after sowing, the following morphological characteristics: height of shoot (H), stem diameter (CD), shoot dry mass (SDM), root dry mass (RDM), total dry matter (TDM), seedling height raltionship/collar diameter (H/CD), shoot dray mass ratio/root dry mass (SDM/MSR) and Dickson quality index (IQD). The results showed that the proportion of 50% of ARS is the one which results in the best morphological characteristics of eucalyptus seedlings. The seedlings showed the planting in the field only 90 days after sowing. Keywords: fertirrigation; Eucalyptus; quality seedlings. Este trabalho teve como objetivo avaliar o efeito de diferentes proporcoes de ARS (Agua Residuaria da Suinocultura) e duas idades das mudas de Eucalyptus urophylla na sua qualidade morfologica. O experimento foi instalado na Area Experimental de Hidraulica, Irrigacao e Drenagem do Departamento de Engenharia Agricola da Universidade Federal de Vicosa (UFV), em Vicosa, MG, dentro de casa de vegetacao. O experimento foi composto por 10 tratamentos em um esquema fatorial 5 x 2 (5 proporcoes de ARS complementadas com adubacao nitrogenada de cobertura e 2 idades das mudas), com numero de repeticoes diferentes, o delineamento estatistico utilizado foi o de blocos casualizados. Para acompanhar o crescimento das mudas da especie estudada foram avaliadas, aos 75 e 90 dias apos a semeadura, as seguintes caracteristicas morfologicas: altura da parte aerea (H), diametro do coleto (DC), massa seca da parte aerea (MSPA), massa seca da raiz (MSR), massa seca total (MST), relacao da altura da parte aerea/diametro do coleto (H/DC), relacao da massa seca da parte aerea/massa seca da raiz (MSPA/MSR) e o indice de qualidade de Dickson (IQD). Os resultados obtidos permitiram concluir que a proporcao correspondente a 50% de ARS e a que resulta em melhores caracteristicas morfologicas das mudas de eucalipto. As mudas apresentaram-se aptas ao plantio no campo somente aos 90 dias apos a semeadura. Palavras-chave: fertirrigacao; eucalipto; qualidade das mudas.
ISSN:1980-5098