Nutritional response of seedling tomato plants under different lighting treatments

  • Eva María Almansa /
  • Antonio Espín /
  • Rosa María Chica /
  • María Teresa Lao
Journal ar
Journal of Plant Nutrition
  • Volumen: 40
  • Número: 4
  • Fecha: 25 febrero 2017
  • Páginas: 467-475
  • ISSN: 15324087 01904167
  • Tipo de fuente: Revista
  • DOI: 10.1080/01904167.2016.1187748
  • Tipo de documento: Artículo
  • Editorial: Taylor and Francis Inc.325 Chestnut St, Suite 800PhiladelphiaPA 19106
© 2017 Taylor & Francis Group, LLC.In order to describe the effect of complementary artificial light supply on the nutrient status of tomato seedlings, fluorescent lamps were compared to each other. Nitrogen (N), phosphorus (P), and potassium (K) concentrations were measured (mg g¿1 dry matter). Blue, red and far-red relationships were established. The N, P and K higher concentration and uptake have been found under high efficiency fluorescent lamps. Phosphorus uptake increasing was observed at high levels of irradiation. Potassium concentration is significantly higher under compact fluorescent lamps. The relationship between ratios and N, P and K extractions were used as indicators of limitation for plant. The ratio N/P and N/K present a low relation with N extraction. The ratio N/P presents a significant correlation with P extraction, also the ratios N/K and P/K with K extraction. Significant differences in constant of lineal equation have been found in P/K ratio and K extraction.

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