Academic Research Journal of Agricultural Science and Research
 

Vol. 6(9), pp. 520-525. December, 2018.

ISSN: 2360-7874 

 DOI: 10.14662/ARJASRD2018.044

Full Length Research

Response of Phosphorus fertilizer rate on Growth, Yield and Yield Components of Onion (Allium cepa L.) at East Gojjam Zone, North Western Ethiopia

Solomon Ali Gebeyehu

Lecturer, Department of Plant Science, Debre Markos University, Ethiopia. E-mail: ethiotrust@gmail.com,

mobile +251(09)-14662007.

Accepted 4 December 2018

A field experiment was under taken to study the effect of different levels of phosphorous on growth and yield of onion (Alluim cepa L.) var. Adama red in Northwestern Ethiopia, Debre Markos university during 2015 under irrigation condition. Onion is the most essential vegetable for nutritional and economical purpose. But there was low yield: under farmer’s field between 9 to 15 t ha^-1 which was far less than research sites which was 30 to 35 t ha^-1. Therefore, four rates of phosphorous (0, 60, 90 and 120 kg ha^-1) were arranged in a Randomized Complete Block Design (RCBD) and replicated three times. The total plot size was 3.7m by 4.8m (17.76m²) and the net plot was 0.9m X 0.9m (0.81m²).  Phosphorous showed significant difference on yield parameter of onion. Plant height had significant difference at four levels of Phosphorous. Maximum leaf diameter and number of root were observed at 90 kg and 120 kg of phosphorous than control and 60 kg of phosphorous_; But no significant difference on leaf number from growth parameter. Maximum bulb diameter, fresh bulb weight and dry bulb weight was recorded at 60, 90 and 120kg ha^-1   than control. But vertical bulb thickness had non-significant difference on each phosphorous levels. By considering cost of production 60kg P ha^-1 level was recommended from all significant difference Parameters.

Key words: Bulb Diameter, bulb weight, phosphorous

How to cite this article (APA Style):

Solomon, A, G (2018). Response of Phosphorus fertilizer rate on Growth, Yield and Yield Components of Onion (Allium cepa L.) at East Gojjam Zone, North Western Ethiopia. Acad. Res. J. Agri. Sci. Res. 6(9): 520-525