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International Journal of Horticultural Science and Ornamental Plants

Effects of different irrigation and fertilization treatments on growth and yield of potato (Solanum tuberosum L.) in Iraq

Abdel-Monnem Sadalaha Kahlel

Accepted 10 March, 2015. 

Citation: Kahlel AMS (2015). Effects of different irrigation and fertilization treatments on growth and yield of potato (Solanum tuberosum L.) in Iraq. International Journal of Horticulture and Ornamental Plants 1(1): 002-010. 

Copyright: © 2015. Kahlel AMS. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Abstract

The experiment was implemented during the autumn season 2013, to study the effect of three methods of irrigation and fertilization on the development and yield of the potato (Solanum tuberosum L.) cv Rivera. Two methods of drip irrigation (putting the pipe at the bottom  and at the top of  furrows) and furrow irrigation with three types of fertilizers (chemical fertilizer at  rate of 300 kg urea, 180 kg superphosphate triple, 240 kg potassium sulphate per hectare) and organic fertilizer at  30 kg.100 m2 -1  with half  amount of the chemical fertilizers mentioned. The organic fertilizers were added in two ways: by scattering dry fertilizer and irrigation with fertilizer solution near plant roots. Results showed  that the highest total water content of leaves was 86.665%, leaf area 2285 cm2, roots dry weight 13.60 g., average tuber  weight  69.56 g., and the percentage of dry matter in tubers 19.26%  was produced from applying organic fertilizer by irrigation, whereas the highest total tubers yield was 16.345 tons.ha-1 and water use efficiency 9.855 kg. ha-1 resulted from organic fertilizer by scattering method, also the treatment of drip irrigation by putting the pipe at the top of the furrows was superior in all studied parameters except the average tuber weight and total soluble solids compared with the other two treatments. 

Key words: Potato, drip irrigation, furrow irrigation, chemical fertilizer, organic fertilizer, tubers.