Effects of compost enriched with human urine on the biochemical quality of potatoes in the Urban Municipality of Faranah (Republic of Guinea)

Vegetale nutrition

In order to valorize liquid waste in the fertilization of crops and to minimize the negative impact of chemical fertilizers on renewable natural resources in the farms of the Urban Municipality of Faranah, a fertilization test involving compost enriched with human urine was carried out in the market gardening perimeter of Sagbaya, on acidic soil (pH = 5.3), silty-clayey-sandy, rich in nutrients with 7.60% organic matter, a C / N = 11.63; and an average saturation rate (V = 45%). The experiment was conducted from 29/11/2019 to 11/02/2020. Analyzes at the Laboratory of the National Soil Service of Guinea revealed that the compost has an alkaline pH (pH = 6.90) and rich in nutrients with 0.04% nitrogen, 0.01% potassium and 0, 12% phosphorus. The experimental device used is the Randomized Complete Block (4x4). The plant material used is the mandola potato variety. The treatments studied are the 4 increasing doses of compost added at a rate of 0t / ha, 15t / ha, 30t / ha and 45t / ha. The analysis of compost demonstrated that it was enriched by supplementation with human urine. After the statistical analyzes of the biochemical parameters, the dry matter, moisture, mineral matter and protein showed no significant difference between the doses tested; unlike fat and carbohydrate showed a significant difference with two classes each of which the 30t / ha dose was found to be better compared to the other doses.

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