WATERMELON YIELD AND EFFICIENCY OF USE OF WATER AND NITROGEN

The evaluation of the yield of crops and their efficiency of use of water and nitrogen is essential to optimize the management of production factors. The objective of this study is to evaluate the effect of irrigation regimes and nitrogen doses in fertigation on fruit yield and efficiency of use of...

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Detalhes bibliográficos
Autores: Pereira, Laercio da Silva, Silva, Everaldo Moreira da, Ferreira, José Orlando Piauilino, Santos, Vinicius Lemos Guerra, Lima, Carlos José Gonçalves de Souza, Silva Júnior, Gabriel Barbosa da
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Brasil
Recursos:Universidade Federal Rural do Semi-Árido (UFERSA)
Repositorio:Revista Caatinga
Idioma:inglés
OAI Identifier:oai:ojs.periodicos.ufersa.edu.br:article/7831
Acesso em linha:https://periodicos.ufersa.edu.br/caatinga/article/view/7831
Access Level:acceso abierto
Palavra-chave:Citrullus lanatus. Fertigation. Irrigation.
Citrullus lanatus. Fertirrigação. Irrigação.
Descrição
Resumo:The evaluation of the yield of crops and their efficiency of use of water and nitrogen is essential to optimize the management of production factors. The objective of this study is to evaluate the effect of irrigation regimes and nitrogen doses in fertigation on fruit yield and efficiency of use of water and nitrogen by the Top Gun watermelon hybrid. The study was conducted in Bom Jesus, Piauí, Brazil, from August 4 to October 15, 2015. The study used a completed randomized block design with four repetitions, five irrigation depths (110.17, 156.86, 221.16, 268.87, and 317.09 mm), and five doses of nitrogen in fertigation (0, 50, 100, 150, and 200 kg ha-1 applied as urea). Fruit yield and water use efficiency were not affected by nitrogen doses; however, there was a significant interaction of the factors for the efficiency of nitrogen use. The highest yield (39,549.45 kg ha-1) was obtained using 233.48 mm of water during the growth cycle. The water depth that promoted the maximum efficiency of water use was 110.42 mm, and nitrogen use was most efficient using 232.21 mm of water and 50 kg ha-1 of nitrogen.

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