Katuisca Acosta ¹, Iris A. Jimenez-Pitre ², Geomar Molina-Bolivar ²

Affiliations
1 Agricultural Microbiology Laboratory. University of Zulia, VE
2 BIEMARC research group. University of La Guajira, CO

Abstract

Objective: The effect of residual sludge of industrial shrimp farming on the initial growth of maize is conducted. Materials and Methods: We used bags of 5 kg with polystirene surface horizon + mud-cattle manure (L+Mo). We used an experimental design totally at random with four treatments: T1: 0% (50 kg ha -1 CV + 0 ton.ha -1 L+ Mo + complete formula 14-14-14), T2: 2% (49 kg ha-1 HP+52 ton ha-1 L + Mo) T3: 4% (48 kg ha-1 CV ton.ha-1 139-141 Cromwell Road L+Mo) and T4: 6% (47 kg ha-1 CV+156 ton ha-1 L + Mo) and 10 repetitions. Results: Non-destructive variables were evaluated (plant height, number of sheeths, the stem thickness, average length of the leaves and average width of the leaves) using repeated measures in time with five weekly evaluations and destructive variables (leaf area, dry mass and air and ischolar_main) using a 4x2 factorial, with 4 treatments and 2 evaluations (21 and 35 days after sowing). In the first evaluation (21 days after) no differences were observed between treatments; while for the second evaluation (35 days after) the T4 with the dose of 156 ton.ha-1L + MO showed the greatest growth of maize during under controlled conditions. Applications: The incorporation of sludge produced improvements in physical and chemical properties of the soil recipient.

Full Text

   

Miriam Rosiris Munoz Estrada ¹, Iris A. Jimenez-Pitre ², Geomar Molina-Bolivar ²

Affiliations
1 Territorios Semiaridos Research Group. University of La Guajira, CO
2 BIEMARC Research Group, University of La Guajira, CO

Abstract

Objective: This research was conducted in the district of Integrated Management (DMI) Rancheria River delta in the city of Riohacha; the purpose was to analyse the contribution of eco-etnoturistica activity for the preservation and/or recovery of this important ecosystem and the Wayuu indigenous culture settled in this area. Materials and Methods: Taking into account the above facts were analyzed within the community of the delta of the River Rancheria, with the designing of an array FODA, where participants identified the strengths, weaknesses, opportunities, strengths and threats to the community to organize and undertake new challenges to improve their quality of life and improve environmental quality, preserve the ecosystem of the DMI and their ancestral culture. Finding: The result is a tool of the management and planning of similar projects, promoting to strengthen the actions of conservation, use and sustainable management of biodiversity, mangroves, and the adaptive capacity of coastal communities settled in the area. We conducted a participatory diagnosis that examined the environmental and cultural features of the area, to define sustainability indicators and establish the true potential. Applications: described the tourism potential in the Rancheria River delta with all its potential through planning tools, socio-cultural organization, articulation-district government and community management of tourist space for the development and better management of resources provided by this ecosystem.

Full Text