THE EFFECT OF GROWING MEDIAAND HUMIC ACID TREATMENTS ON SOME PLANT PROPERTIES OF PURSLANE (Portulaca oleracea L.)

La presente investigación se realizó en la comunidad Carao-Hormiguero, Siuna, Región Autónoma del Atlántico Norte (RAAN), ubicada en la zona núcleo de la reserva de biosfera BOSAWAS, con el propósito de evaluar la eficacia del proroot y ácido húmico en el enraizamiento en varetas de cacao. El estudio fue experimental, transversal y prospectivo. La metodología basada en el Diseño Completamente al Azar (DCA) con tratamientos de ácido húmico, proroot y testigo en un período de 40 días (20 de septiembre al 30 de octubre). Se utilizaron 180 varetas en 3 tratamientos con 3 réplicas de 60 varetas, 20 por bancal. Con el enraizador ácido húmico se obtuvo un prendimiento de 40% (24), con Proroot, 68.33% (41) y testigo, 11.66% (7). En general se logró un 40% de prendimiento (72 varetas). La inversión durante la investigación fue de C$ 2,548.60.(C$ 35.39 por vareta). El tratamiento que dio resultados aceptables fue el proroot, del que se obtiene una ganancia neta de C$ 388.80.SummaryThis research was carried out in the Carao Hormiguero community, municipality of Siuna, RAAN, which is located in the center of the Bosawas biosphere reserve, in order to evaluate the effectiveness of ProRoot and the humic acid on the rooting in cacao branches. The research was experimental, transverse and prospective. The methodology was based on a completely randomized design (DCA) with humic acid treatments, ProRoot and control in a period of 40 days (September 20 to October 30). 180 branches were used in 3 treatments with 3 replications of 60 branches, 20 by plots. With the rooting humic acid 40% (24) of capture was obtained, with ProRoot, 68.33% (41) and control, 11.66% (7). In general 40% of capture was achieved (72 branches). The investment during the investigation was of C$ 2,548.60 (C$ 35.39 per branch). The treatment that gave acceptable results was ProRoot, of which a net profit of C$ 388.80 is obtained.

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The effects of bioactive feed additives for the production parameters of common carp (Cyprinus carpio) fingerlings in intensive recirculating system

Acta Agraria Debreceniensis ◽

10.34101/actaagrar/65/1874 ◽

2015 ◽

pp. 35-41

Author(s):

Éva Csorvási ◽

Saboura Zaheri ◽

Milán Fehér ◽

Péter Juhász ◽

László Stündl ◽

...

Keyword(s):

Humic Acid ◽

Common Carp ◽

Mineral Elements ◽

Feed Additives ◽

Feed Additive ◽

Average Weight ◽

Control Stock ◽

Probiotic Treatment ◽

Acid Treatments

For the appropriate quantity and quality of fish meat the pond farmers need to use up to date nutrition and feeding technologies. Recently the intensification of the carp production is stepping up with the availability the proper quality of the artificial feeds. The using of different feed additives make a better feed conservation ratio, faster growing rates and more uniform stocks. In our experiment what is made with common carp (duration of the experiment was 8 weeks long) we compared two different kinds of feed additives in different doses. One of them contains only natural mineral elements and the other additive is a natural origin probiotics. Both additives were used in the quantity of 0.5, 1 and 2% of the total feed. By the result of the 8 weeks experiment it could be said, that the using of the humic acid based mineral elements feed additive. Makes a better FCR comparing with the control stock, but was not as good as the using of the probiotics. At the humic acid treatments the more doses, the better FCR value, but at the probiotics it wasn’t true. The 0.5% probiotic treatment gave the best result. It is concluded that the using of the probiotic feed additives always gave a better performance of the fishes (average weight, biomass, FCR) than the humic acid treatments. The using of the feed additives hasn’t got an influence for the survival rate of the carps.

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