Effectiveness of vermicomposts from horse, cow and poultry manure on lettuce growth
I am a teacher-researcher at the Cheikh Anta Diop University in Dakar, Senegal. My Ph.D. in Agroecology has allowed me to gain expertise in urban agriculture, waste management and vermiculture technologies. In the context of the reduction of arable land and urbanization, sustainable techniques must be developed to guarantee food quality. My current research involves soil-less crops and organic fertilizer production. My research examined the possibility of increasing crop productivity through micro-gardening, and the substitution of chemical fertilizer with vermicompost. This study aimed to determine the effectiveness of vermicomposts from three types of manures on the agronomic parameters of lettuce. The objectives are i) to evaluate the toxicity of vermicomposts on seed emergence and ii) to evaluate the efficacy of vermicomposts on lettuce growth. A mixture of sand and vermicompost was used for each type of vermicompost, D1 (25% vermicompost + 75% sand), D2 (50% vermicompost + 50% sand), D3 (75% vermicompost + 25% sand), D4 (100% vermicompost). These treatments were compared to a synthetic chemical fertiliser. The results showed that the soil amended with vermicompost gave a higher yield than the synthetic chemical fertiliser. The results also determined an optimal dose for the agronomic parameters of each crop. The vermicompost from horse manure (D3) was more suitable for germination and increased leaf surface of lettuce. Vermicompost based on poultry manure (D4) produced a higher number of leaves. For increasing the weight of lettuce, the cow manure vermicompost (D1) gave the best result. This research has contributed to the use of vermicompost as an alternative to synthetic chemical fertilizer.
Issa Alé Ndiaye won the ISHS Young Minds Award for the best poster presentation at the IV All Africa Horticultural Congress (AAHC2021), which was held virtually in Senegal in March 2021.
Issa Alé Ndiaye, Cheikh Anta Diop University of Dakar, Faculty of Science and Technology, Department of Animal Biology, Laboratory of Integrated Production and Protection in Agroecosystems (l2PIA), Mermoz rue 114, Dakar, Senegal, e-mail: firstname.lastname@example.org
The article is available in Chronica Horticulturae