Organic fertilization for the improvement of production and quality of ripe figs

Aim of study: The use of natural inputs in farming practices and the consumption of in natura products have been on the rise. Natural crop fertilizing sources gains force when the intent lies in crop by way of an ecologically correct agricultural system. To this end, this paper targeted assessing the use of cattle (CM) and bird manure (BM) in organic fertilization of fig culture in organic handling, and its effect on the production of ripe figs. Area of study: Federal University of Parana, Curitiba, Parana, Brazil. Material and methods: In 2011, an experimental fig orchard was established using the 'Roxo de Valinhos' cultivar. The experimental outline adopted was in randomized blocks, with 3 repetitions and 7 treatments comprised of: the control and 6 types of fertilization using CM and/or BM. Harvests were performed in 2016 and 2017. The characteristics evaluated were mean weight, length and diameter of individual fruits, mean weight and number of fruits per tree, total soluble solids content, total titratable acidity and pH. Main results: Organic fertilization with 5 L of CM per fig tree promoted the best results in all biometric variables as compared to the plants that were not fertilized. Considering quality, only 5 L of CM or 1.25 L of BM provided equal total titratable acidity in comparison with control. Plants fertilized with 2.5 L of CM produced figs with higher maturation index against plants fertilized with 5 L of CM or 1.25 L of BM. Research highlights: Considering the fig tree productivity and quality of ripe figs, organic fertilization with CM and BM promoted good characteristics.