Response of Onion to Different Organic Amendments in Central Uganda
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Date
2017
Authors
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Journal ISSN
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Publisher
Journal of Agricultural Science and Technology
Abstract
Onion is one of the most important vegetable crops grown in Uganda, because of its nutritional and economic value.
However, production of onion in Uganda is very low due to nutritional imbalances in the soil. Therefore, soil fertility remains one of
the key areas of focus in sustaining onion production. A field experiment was conducted to assess the response of onion variety Red
Creole C-5 to different soil organic amendments at Kyambogo University during the period February 2016 and January 2017. The
experiment was laid out in a randomized complete block design with four replications. The treatments included T0: without manure
(control), T1: green manure (GM), T2: farmyard manure (FYM) and T3: compost manure (CM). Data collected included: plant height,
root length, plant fresh and dry weight, number of leaves per plant, fresh and dry weight of bulbs, diameter of bulbs and commercial
yield computed. Data were analysed using Genstat. There was significant response of onion to the different soil organic amendments.
Onion plant height, number of leaves, root length, dry and fresh weight and bulb weight were high in farmyard manure, followed by
compost manure and lastly green manure, compared to the control. The highest yield (12,000 kg/ha) was obtained from the plots
amended with farmyard manure as opposed to the control. It was therefore concluded that farmyard manures had a greater effect on
the agronomic and yield performance of onion. Future study with more than one onion genotype is recommended so as to widen the
scope of this result.
Description
Keywords
Onion, Organic manures, Growth, Yield
Citation
Bua, B., Owiny, R., & Akasairi, O. (2017). Response of onion to different organic amendments in central Uganda. J. Agr. Sci. Tech, 7, 79-85. doi: 10.17265/2161-6264/2017.02.002