What is the effect of compost on the characteristics of a sandy soil after two seasons of okra (abelmoschus esculentus) cultivation in the niayes area of senegal?

Soil is both a support and a nutrient source for the development of living organisms. Composts based on faecal sludge and vegetable wastes were tested on okra to see the proportion of organic matter and nutrients in the soil after two seasons. Thus the control, non-composted faecal sludge and chemical fertiliser were compared with the other treatments T0, T1 and T2. Physicochemical parameters such as pH, electrical conductivity, organic matter, nutrients Carbon, Nitrogen, Potassium, Phosphorus and grain size were analysed. The results showed an increase in organic matter content from the beginning (As = 0.52%) with 1.72%, 1.9% and 1.4% for the soil samples that were amended with T0, T1 and T2 respectively. Thus the pH values are neutral for treatments T0, T1 and T2. The electrical conductivities are between 33-47µs/cm. Mineral elements such as A (0.08-0.1%), P (21.7-29.6%), K (0.02-0.03%), are satisfactory for T0, T1 and T2. The C/N ratio is between 9.5-10.4 and below 12.