The biomass production and nutrient content of roselle leaves grown with poultry litter and Organosuper®
No hay miniatura disponible
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidade Estadual de Maringá
Resumen
Descripción
The objective of this study was to evaluate the effects of poultry litter and Organosuper ® with three modes of application on the biomass produc tion and nutrient content of the leaves of roselle plants. The treatments in each crop cycle were in a factorial arrangement, 2 x 3 + 1, composed of a control and combinations of the two organic fertilizers (poultry litter (10 ton. ha -1 ) and Organosuper ® (10 ton. ha -1 ) and the three application modes (surface, incorporated and surface + incorporated), in a randomized block design with four replicates. In the surface + incorp orated mode, the organic fertilizers were applied as 5 ton. ha -1 surface and 5 ton. ha -1 incorporated. The highest production s of fresh and dry weight and number of calyxes were obtained for poultry litte r in surface (10,776, 1,239 and 3,980,602 kg ha -1 , respectively) and Organosuper ® incorporated (11,372, 1,308 and 4,405,075 kg ha -1 , respectively) in the agricultural year 2009/2010. The increases in the fresh and dry weights of the calyxes, leaves, stems and roots, number of calyxes, leaf area and fibers in the agricultural year 2008/2009 in the poultry li tter treatments. Nutrients concentrations in the dry weight of the roselle leaves were not affected by the or ganic fertilizer type or by the mode of application.
Palabras clave
Agrociencias