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Calibrating Water Hyacinth Based Compost For Organic Onion (Allium Cepa) Production

Adeoluwa, Olugbenga O. and Tosin Ogunlola, Emmanuel (2021) Calibrating Water Hyacinth Based Compost For Organic Onion (Allium Cepa) Production. Paper at: Organic World Congress 2021, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB, Rennes, France, 8 - 10 September, 2021. [Completed]

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Summary

"Water hyacinth based compost is a recent innovation aimed at addressing the menace of water hyacinth on water ways. However, there is paucity of information on specific quantity of the water hyacinth compost for optimum yield of onion (Allium cepa). Thus, the effects of different levels of water hyacinth based compost on the fresh yield of onion (Allium cepa L.), as well as the post-harvest soil fertility in an organic farming system are presented in this report.An experiment was carried out in two years at the Organic Vegetable Garden of the Teaching and Research Farm; University of Ibadan, to calibrate water hyacinth based compost for fresh yield of onion. The compost was applied at the rates of 0, 30, 60 and 90 kg K/ha in 2015 and 0, 30, 60 and 90, 120 and 150 kg K/ha in the year 2016 in a randomized complete block design with four replicates. Data were collected on fresh onion bulb weight as well as post-planting soils. Yield data were subjected to analysis of variance (ANOVA) and means were separated using Duncan Multiple Range Test, while soil data were subjected to descriptive analysis.The result revealed that fertilizer source had significant effects on fresh bulb weight (t/ha) at (p≤0.05). The treatments 90 kg K/ha and 150 kg K/ha water hyacinth based compost significantly influenced fresh bulb weight having 79.7 t/ha and 106.3 t/ha respectively, but were not significantly different at p≤0.05. Post-planting soils with 90 kg K/ha was better than others treatments in nitrogen and phosphorus which are critical elements for onion production. Based on the results of this study, 90 kg K/ha water hyacinth based compost is recommended for organic onion production."


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Water hyacinth compost, Potassium, Organic fertilisers, organic farming system, Onion, Soil fertility
Subjects:"Organics" in general
Research affiliation: International Conferences > 2021: Organic World Congress, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB > Innovation in Organic farming: “Thinking outside of the box”
Nigeria
Deposited By: rey, m. frederic
ID Code:42197
Deposited On:07 Sep 2021 13:12
Last Modified:07 Sep 2021 13:12
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:A book of abstracts of papers of the Science Forum at the Organic World Congress 2021, September 8-10, Online and on-site in Rennes, France '6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB' has been published

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