MEDEIROS, I. F. S.; http://lattes.cnpq.br/6504350504970075; MEDEIROS, Isis Fernanda Silva.
Resumen:
The Jatropha curcas plant represents a valuable alternative in the production of biofuel;
however research information about management practices as well its nutritional requirements
are limited in the literature yet. Such information is needed to support both Jatropha curcas
cultivation and utilization of the side products generated. The scarce information on Jatropha
curcas in the literature may be explained by lack of research study on this subject what has
lead to lack of knowledge regarding the plant habits. The main goal of the current research
was to access the relationship between initial growth and nutrient accumulation in leaf tissue
of Jatropha curcas plants fertilized with organic manures made by mixing seed cake and fruit
shell in different proportions: manure-1 (20% cake and 80% shell of Jatropha curcas),
manure-2 (60% cake and 40% shell of Jatropha curcas). The concentrations used were: 0, 10,
20, 30, 40 and 50% v/v, in the growth substrate. The manure-1 had a positive influence in the
following growth parameters: plant height, leaf number, dry mass of root and shoot and
nutrient accumulation in the shoot. On the other hand, increasing concentration of manure-2
affected negatively all parameters studied provably by changing root membrane integrity what
may have affected plant nutrient uptake by the roots.