Agronomía
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Item Introducción del cultivo de zucchini (Cucurbita pepo) l.de la variedad black jack, con cinco dosis de materia orgánica en el recinto Cruz de Perezán cantón Chillanes, provincia Bolívar(Universidad Estatal de Bolívar . Facultad de Ciencias Agropecuarias . Escuela de Ingeniería Agronómica, 2015) Andrade Castillo, Ibán Alcivar; Velóz, LuisIn Chillanes production is focused on beans and corn, however overproduction and lack of technology leave no return, so it is necessary to find productive alternatives for this area, climate edafo environment is suitable for cultivation zucchini, so you need to evaluate, on the other hand the behavior of this plant degradation and the need to adequately nourish crops without degrading the environment requires the application of organic amendment, however you have to determine a dose that technically adequate and economically profitable, it is planned to carry out this investigation in Perezán community, located at 2503 meters, to evaluate the response of zucchini variety black Jack to five doses of organic matter more an absolute witness, a DBCA was used, with three replicates, the study factor was "five doses of organic matter and a variety of zucchini" treatments were t1, (5 Tm.ha MO), t2 (10 Tm.ha MO), t3, (15 Tm.ha MO), t4, (20 Tm.ha MO), t5, (25 Tm.ha MO) and T6 (no MO), 18 experimental units of 20 m2 were established; to assess response analysis of variance, Tukey test at 5%, the correlation analysis and regression and economic analysis was performed, the crop was managed organically, the percentages of arrest seedling (PPP) was evaluated, plant height (AP), number of leaves per plant (NHP), the average length of the blade. (LPH), days to flowering (DF), number of fruits per plant (NFP), incidence and severity of pests and diseases (ISPE), days to harvest (DC), equatorial diameter of fruit (DEF), length Polar fruit (LPF), fruit weight per plot. (PFP), and performance TM / ha (RH), whereby the economic analysis showed that T4 and T3 are the most profitable with marginal Retoro rate of 468% and 457.3% respectively, so that the best treatment in both performance and economically corresponds to the treatment t4, where the trial was conducted was observed to plant variety zucchini black Jack applying 20 Tm.ha of organic matter is the most efficient, most profitable technical and economic aspect treatment