The Effect of Phosphorus and Transplanting Date on Growth, Yield and Yield Components of Onion (Allium Cepa L.) Under Irrigated Conditions at Adami Tulu Jedo Kombolcha Woreda, Oromia Region

Tilaye Anbes


A field experiment was showed to decide the influence of transplanting date and phosphorus level on growth, yield and yield component of onion at Adami Tulu Jedo Kombolcha Woreda during 2017/18 season. The treatments comprised of three transplanting date (42, 49 and 56 days of transplanting date) and phosphorus levels (0, 23, 46, and 69 kg P2O5 ha-1).  The experiment was laid out in RCBD with four replications. In this study, transplanting at 56 days of transplanting date fertilized with 69 kg P2O5 ha-1 recorded the highest total bulb yield and marketable bulb yield, but no significant difference was showed with that obtained at 46 kg P2O5 ha-1 with the same transplanting date. The economic analysis revealed that the highest net benefit with low cost of production was obtained in response to the application of 46 kg ha-1 and the transplanting age of 56 days.

Keywords: bulb yield, Onion, economic analysis, phosphorus, transplanting date.

DOI: 10.7176/JBAH/11-1-03

Publication date: January 31st 2021

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ISSN (Paper)2224-3208 ISSN (Online)2225-093X

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