Effect of population, propagule size and nitrogen levels on growth and rhizome yield of ginger (Zingiber officinale Rosc.) in Southern Ethiopia

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Research Paper 15/08/2022
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Effect of population, propagule size and nitrogen levels on growth and rhizome yield of ginger (Zingiber officinale Rosc.) in Southern Ethiopia

Mulugeta Abebe Mamo, Alemayehu Adinew Abo
J. Bio. Env. Sci.21( 2), 112-122, August 2022.
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A field experiment was conducted during the 2021 main cropping season to determine the effect of density, rhizome size, and applied nitrogen levels on the growth and rhizome yield of ginger (Zingiber officinale Rosc). The treatments consisted of a factorial combination of three population densities, three rhizome sizes, and three nitrogen levels laid out in a randomized complete block design with three replications. The results revealed that plant height, leaf number, leaf area, number of tillers, and number of fingers were significantly affected by the main effects and interaction effects of nitrogen and population density. Rhizome length and yield were significantly influenced by the interaction of rhizome size and nitrogen, whereas days to emergence, days to maturity, plant height, leaf number, and fresh rhizome yield were significantly affected by the 3-way interaction. The establishment of ginger with 40g rhizome size, 166 667 plants ha-1 and its nourishment with 100kg N ha-1 enhanced its growth and rhizome yield.


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