Efeito de biossólido no crescimento inicial de Corymbia citriodora

Content Provider	Semantic Scholar
Author	Pérez, Paula Vergili Malavasi, Ubirajara Contro Malavasi, Marlene De Matos Lang, Aleteia Zachow, Karine
Copyright Year	2011
Abstract	Este trabalho avaliou os efeitos da adicao de doses de biossolido no desenvolvimento inicial de Corymbia citriodora (Hook.) K.D.Hill & L.A.S. Johnson. Utilizaram-se as doses: 0, 10, 20, 30 e 40 Mg ha-1 com incorporacao destas a camada superficial de 20 cm. Foram avaliados os seguintes parâmetros nas epocas 60, 120, 180, 240 e 300 dias apos o transplante: altura das plantas, numero de folhas, diâmetro do coleto, area foliar, biomassa seca radicular e aerea, indice de Dickson e eficiencia nutricional. A analise dos resultados indicou que a viabilidade de uso esta entre 30 e 40 Mg ha-1, pois seus efeitos estao demonstrados positivamente no comprimento da planta (media dos incrementos igual a 38,85 cm), numero de folhas (media dos incrementos igual a 43,9 folhas), assim como para diâmetro de coleto e biomassa seca aerea. Devido as evidencias na reducao do acumulo de biomassa seca radicular decorrente da aplicacao de doses crescentes do biossolido, a dose de 10 Mg ha-1 destacou-se obtendo a maior media, e indicando uma prioridade na estrategia de crescimento da especie de rapido crescimento. A recomendacao da dose 30 Mg ha-1que pode reduzir gastos em transporte e em aplicacao comparativamente a dose 40 Mg ha-1. Abstract This essay aimed to evaluate the effects of the addition of biosolids doses in the initial development of the Eucalyptus citriodora Hook. For this experiment it was utilized doses of biosolids equivalents at 0, 10, 20, 30 and 40 Mg ha-1. With their incorporation to a superficial layer of 20 cm. The parameters evaluated on 60, 120, 180, 240 and 300 days after the transplant were: plants length; number of leaves, foliar area, colon diameter and aerial and radicular dry biomasses. The analysis of the results pointed that the viability of the use is between the doses 30 e 40 Mg ha-1, because their effects are positively demonstrated in the parameters: plant length (increases average between 30 e 40 Mg ha-1 equal to 38,85 cm) and number of leaves (increases average between 30 e 40 Mg ha-1 of 43,9 leaves, higher than other treatments that got an average equal to 35,62 leaves), as well as in the colon diameter and aerial and dry biomass. Evidences on the reduction of the radicular dry biomass accumulation with the application of increasing doses of biosolid, the dose 10 Mg ha-1 stood out, because this got the average higher (99,12g) than the other treatments (31,48), indicating a priority in the growing strategy of the fast development specie, which commercial interest is emphasized by the production of wood and leaves, implies a recommendation of doses of 30 Mg ha-1 that is able to reduce expenses in transport and in application comparatively to a doses of 40 Mg ha-1.
Starting Page	13
Ending Page	23
Page Count	11
File Format	PDF HTM / HTML
DOI	10.5777/ambiencia.2011.01.01
Alternate Webpage(s)	https://revistas.unicentro.br/index.php/ambiencia/article/download/910/1187
Alternate Webpage(s)	https://doi.org/10.5777/ambiencia.2011.01.01
Volume Number	7
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article