Productivity of Lettuce Under Organic Fertilization

José Júnior A. Sarmento, Caciana C. Costa, Maila V. Dantas, Kilson P. Lopes, Ivando C. de Macedo, Silva Marinês P. Bomfim and José Wilson da S. Barbosa

Journal of Agricultural Science, 2024, vol. 11, issue 1, 335

Abstract: Organic fertilizersare a viable alternative to reduce the expenses associated with synthetic fertilizers, besides improving the chemical, physical and biological attributes of the soil and promoting the increase of productivity in the cultivation of vegetables. The aim of this research was to evaluate the effect of goat manure applicatiosn on lettuce yield, cv. Cristina. The experiment was conducted at the Center for Agri-Food Science and Technology, Federal University of Campina Grande in the municipality of Pombal, PB, Brazil. The experiment was conducted in randomized blocks with treatments composed of five goat manure percentages (0, 25, 50, 75 and 100%), considering 100% of the recommended dose being 36.50 ton/ha de goat manure, in five replications, using a spacing of 0.25 × 0.25 m between plants. Harvesting was performed 30 days after transplanting the seedlings. The following parameters were analyzed- aerial part height, plant diameter, number of leaves, aerial fresh weight, root fresh weight, total fresh weight, aerial dry weight, root dry weight, total dry weight, root volume and productivity. The data were submitted to polynomial regression analysis. When the lettuce plants cv. Cristina were fertilized with 75% of the N ratio required for maximum production, the goat manure application produced the greatest development and increase productivity.

Date: 2024
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