Effect of nitrogen and potassium fertilization on the production and quality of oil in jatropha curcas l. under the dry and warm climate conditions of colombia Report as inadecuate




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Stanislav Magnitskiy ; Martha C. Henao T. ;Agronomía Colombiana 2014, 32 2

Author: Omar Montenegro R.

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Agronomía Colombiana ISSN: 0120-9965 agrocolfabog@gmail.com Universidad Nacional de Colombia Colombia Montenegro R., Omar; Magnitskiy, Stanislav; Henao T., Martha C. Effect of nitrogen and potassium fertilization on the production and quality of oil in Jatropha curcas L. under the dry and warm climate conditions of Colombia Agronomía Colombiana, vol.
32, núm.
2, 2014, pp.
255-265 Universidad Nacional de Colombia Bogotá, Colombia Available in: http:--www.redalyc.org-articulo.oa?id=180332010013 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Effect of nitrogen and potassium fertilization on the production and quality of oil in Jatropha curcas L.
under the dry and warm climate conditions of Colombia Efecto de la fertilización con nitrógeno y potasio sobre la producción y calidad de aceite de Jatropha curcas L.
en condiciones de clima cálido y seco de Colombia Omar Montenegro R.1, Stanislav Magnitskiy2, and Martha C.
Henao T.2 ABSTRACT RESUMEN This study was conducted to assess fruit and seed yield, oil content and oil composition of Jatropha curcas fertilized with different doses of nitrogen and potassium in Espinal (Tolima, Colombia).
The yields ranged from 4,570 to 8,800 kg ha-1 of fruits and from 2,430 to 4,746 kg ha-1 of seeds.
These yields showed that the fertilizer dose of 150 kg ha-1 N 120 kg ha-1 K increased fruit production by 92% and seed production by 95%, which represents an increase of about 100% in oil production, which increased from 947 to 1,900 kg ha-1.
The total oil content in the seeds ranged from 38.7 to 40.1% (w-w), with a high content of the unsaturated fatty acids oleic ( 47%) and linoleic acid ( 29%).
The highest content of oleic acid in the seed oil was from the unfertilized control plants an...





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