Indian Journal of Science and Technology
Year: 2018, Volume: 11, Issue: 29, Pages: 1-6
Katuisca Acosta1*, Iris A. Jimenez-Pitre2 and Geomar Molina-Bolivar2
*Author for correspondence
Agricultural Microbiology Laboratory. Faculty of Agronomy. University of Zulia; [email protected]
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 root) 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.
Keywords: Cultivation of Zea mays L, Organic Fertilizers, Sewage Sludge, Shrimp Farms
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