Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
November 2015 Vol. 4(11): pp. 803-809
Copyright © 2015 Global Advanced Research Journals


Full Length Research Paper

Effect of organic manure sources and NPK fertilizer on yield and water productivity of onion (Allium cepa L.)

Ebtisam I. Eldardiry, Abd El-Hady M., M.S.A. Abou-El-Kheir and A.A. Aboellil


Water Relations and Field Irrigation Dept., Agricultural Division,

National Research Centre, El Behouth St., Dokki, Cairo, Egypt


Accepted 30 November, 2015



This study was carried out to maximize the fertilization efficiency of onion (Allium cepa L.) under two organic manures that improved soils retain ability to water. Field wintered experiments were carried out in Production Station in Nubaria, Behera Governorate, Egypt during two successive growing seasons (2014 and 2015). The organic fertilizers were farm yard manure and chicken manure. Chemical fertilizer NPK was added as a percentage from recommended dose (0, 25, 50, 75%). Farm yard manure (FYM) and chicken manure (ChM) were applied during soil preparation at rates 15 and 5 ton fed-1.  Based on the obtained results yield of onion bulbs, wither FYM or ChM with 50 % of recommended NPK had highly significant effect on all studied parameters. To achieve a high production potential of onion, appropriate reasonable amount of the organic manure enriched with 50 % NPK should be maintained during the entire growing season. High yields of bulbs in ChM followed by FYM confirm supplementary NPK under experimental conditions. Differences in bulb yields between 50 and 75 % from recommended NPK treatments indicate that high and reliable yields of onion grown from seed in the region could be achieved only under ChM or FYM. The values of consumed irrigation water were 420 mm that could be recommended as a good platform for onion growers in the region in terms of maximum yield and optimum utilization of NPK mineral fertilizer.  The mathematical relations between NPK fertilizer application rates from recommended doses versus onion yield and WCP were plotted and the obtained regression equations were positively and highly significant at 1 % level, which represents that any increase in NPK fertilizer by unite (25%) faced by increase in both onion yield and WUE.  Also, the previous relations was linear and could be used to maximize the expected yield by application different ratios of NPK. Regression equations between fresh and dry weight of both leaf and bulb were estimated and both equation were highly and positive significant liner for leaf and polynomial after bulb fresh and dry weight.  

KeywordsOrganic manure, Chicken manure, NPK fertilizer,  onion, growth characters, yield components.



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