Organic waste of winery and poultry rearing with fertilizer for lettuce
Abstract
The aim of this study was to evaluate the growth, yield and nutrients uptake in lettuce with winery and poultry rearing waste as organic fertilizer. The winery waste was composted, while the poultry rearing waste was submitted for a thermic process to obtain a nutrient solution used in fertirrigation. The treatments were composed by different concentrations of plants organic fertilizer: T1, without fertilizer; T2, recommended mineral fertilizer; T3, 50% of recommended composted winery waste (CWW); T4, 100% of CWW; T5, 200% of CWW; T6, 50% of recommended poultry liquid waste (PLW); T7, 100% of PLW; and T8, 200% of poultry PLW. The organic fertilizer based on winery and poultry rearing wastes showed potential for organic fertilization in lettuce. The compost of winery waste should be used in recommendation of 100%. The poultry waste liquid solution should not use concentration higher than 100%, because there is no increasing in growth and yield of lettuce.
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