Lettuce response to dosage application, biofertilizer and irrigation blades

• Autor(a) principal: Leite, Kelly Nascimento
• Data de Publicação: 2022
• Outros Autores: Oliveira, Querolaine Sampaio, Marques, Kecy Dhones Monteiro, Oliveira Júnior, Porfirio Ponciano de, Sousa, Geocleber Gomes de, José, Jefferson Vieira
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Research, Society and Development
• Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/30781
• topic: Irrigation management; Bovine biofertilizer; Lettuce productivity.; Manejo de Irrigação; Biofertilizante bovino; Produtividade da alface.; Manejo del Riego; Biofertilizante bovino; Rendimiento de lechuga.

Lettuce is a crop widely cultivated throughout the country, they are sensitive to water stress, however they benefit from the use of organic fertilizers. The objective of this work was to evaluate the growth, development and productivity of lettuce under the effect of four doses of biofertilizer of bovine origin and different irrigation depths. Four doses of biofertilizer 10, 20, 40 and 60 m³ha-1 were tested, and four irrigation depths, 100, 90, 80 and 70% of the water requirements of the plant. The variables analyzed were, number of leaves, crown diameter, root growth, fresh mass of the aerial part, dry mass of the aerial part and dry mass of the root. The best variables were achieved with the highest doses of biofertilizer above 20 m3ha-1. The irrigation depths also had a positive influence on the development of the crop, the one that best influenced the development of the lettuce was the 126 mm blade, corresponding to 90% of the calculated water needs, so the 100% blade can cause a decrease in growth, for excess water. Therefore, the use of biofertilizer is a viable alternative, which can increase productivity and positively affect the qualitative variables of lettuce.