Elaboración de un abono orgánico a partir DE Azolla filiculoides con hiperacumulación de hierro.
The present investigation evaluates a solid organic fertilizer obtained from Azolla filiculoides, which hyper accumulated of iron, promotes growth and development of lettuce in greenhouse conditions. In order to determine the best conditions for bioaccumulation of iron in filiculoides Azolla gro...
| Autor Principal: | Ruiz Alencastro, Jorge Luis |
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| Formato: | bachelorThesis |
| Idioma: | spa |
| Publicado: |
2015
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| Materias: | |
| Acceso en línea: |
http://dspace.ups.edu.ec/handle/123456789/9051 |
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| Sumario: |
The present investigation evaluates a solid organic fertilizer obtained from Azolla
filiculoides, which hyper accumulated of iron, promotes growth and development of
lettuce in greenhouse conditions.
In order to determine the best conditions for bioaccumulation of iron in filiculoides
Azolla growth was evaluated in a controlled cultivation medium, keeping constant
the concentration of macronutrients, pH, temperature and varying the concentration
of iron micronutrient , through ferrous sulfate solutions from 0 , 35; 0.55; 0.75 ppm,
and 1,3; 2,6; 5,2; 7,8; 10,4 ppm of EDTA-iron. The medium was changed every 5
days for 3 times. The quantification of iron absorbed into the tissue of Azolla
filiculoides was performed using atomic absorption spectrophotometry with airacetylene
flame and a wavelength of 248,3nm. The best response was obtained with
the EDTA-iron of 10.4 ppm; treatment was replicated in sufficient quantity for
cultivation.
The inspection of the Lactuca sativa var Inybacea was held for 45 days after the
transplant for which the substrate was obtained at Salache Experimental Station
located in Latacunga with a low iron; greenhouse cultivation was 2.5k in cases with
three different doses of Azolla and Fe-EDDHA, the appraisal was performed of the
agronomic characteristics after 45 days. You can set the concentration gave better
responses to treatment cultivation was Azolla filiculoides 2g / plant and generally has
better characteristics than synthetic iron chelate. |
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