Publicado

2018-04-01

Safflower (Carthamus tinctorius L.) yield as affected by nitrogen fertilization and different water regimes

Producción de cártamo (Carthamus tinctorius L.) en función de fertilización nitrogenada y diferentes regímenes hídricos

DOI:

https://doi.org/10.15446/acag.v67n2.60896

Palabras clave:

Fertilizer application, irrigation scheduling, nutrient availability(soil), plant-soil relations, rainfed conditions, yield components (en)
Aplicación de fertilizantes, componentes de rendimento, condiciones de secano, disponibilidad de nutrientes (suelo), programación de riego, relaciones planta-suelo. (es)

Autores/as

  • Reginaldo Ferreira-Santos Centro de Ciências Exatas e Tecnológicas, Unioeste
  • Doglas Bassegio Faculdade de Ciências Agronômicas. Departamento de Produção e Melhoramento Vegetal UNESP- Universidade Estadual Paulista, Brasil
  • Maria Márcia Pereira-Sartori Centro de Ciências Exatas e Tecnológicas UNIOESTE- Universidade Estadual do Oeste do Paraná, Brasil
  • Maurício Dutra-Zanotto Faculdade de Ciências Agronômicas. Departamento de Produção e Melhoramento Vegetal UNESP- Universidade Estadual Paulista, Brasil
  • Marcelo de Almeida-Silva São Paulo State University/UNESP – College of Agricultural Sciences, PO Box 237, 18603-970 Botucatu, SP, Brazil

Due to its origin and hardiness, safflower is usually cultivated in low-fertility soils with few inputs and no irrigation. In Brazil, little is known about its response to nitrogen (N) and irrigation. This study was carried out near the city of Engenheiro Coelho, SP, Brazil, in 2014, in order to determine the effect of increasing nitrogen application rates (0, 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 550 and 600 kg ha-1) on safflower cultivation under irrigation and rainfed conditions. The use of irrigation during drought periods allowed stress reduction and significantly increased yield components and grain yield. Safflower yield was influenced by the interaction between water regimes and nitrogen rates. Grain yield may vary depending on several factors, however, maximum yield was achieved with rates of 208 and 214 kg N ha-1 under irrigation and rainfed conditions, respectively. For oil yield, 200 kg N ha-1 were sufficient, regardless of the water regime.

En función de su origen y rusticidad, el cártamo se produce generalmente en tierras  secas, de baja fertilidad, con pocos insumos y sin riego. En Brasil, poco se sabe de la respuesta de este cultivo a la aplicación de nitrógeno (N) y al riego. Este estudio fue realizado próximo a Ingeniero Coelho, SP, Brasil, en la campaña agrícola de 2014,para determinar el efecto de dosis crescientes de nitrógeno (0; 50; 100; 150; 200; 250; 300; 350: 400; 450; 500; 550 e 600 kg.ha−1) en el cultivo de cártamo en secano e irrigado. La aplicación de riego en periodos secos, posibilitó reducir el estrés y así, aumentar de forma significativa los componentes de producción y el rendimiento de granos. La producción de cártamo es influenciada por la interacción entre el régimen hídrico y la dosis de nitrógeno. El rendimiento del grano puede variar dependiendo de varios factores, sin embargo, el rendimiento máximo se logró con tasas de 208 y 214 kg.N ha-1 en condiciones de riego y de secano, respectivamente. Para el rendimiento de aceite, 200 kg N. ha-1 fueron suficientes, independientemente del régimen hídrico.

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Cómo citar

Ferreira-Santos, R., Bassegio, D., Pereira-Sartori, M. M., Dutra-Zanotto, M., & de Almeida-Silva, M. (2018). Producción de cártamo (Carthamus tinctorius L.) en función de fertilización nitrogenada y diferentes regímenes hídricos. Acta Agronómica, 67(2), 264-269. https://doi.org/10.15446/acag.v67n2.60896