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Title

THE EFFECT OF DIFFERENT LEVELS OF IRRIGATION AND NITROGEN FERTILIZER ON YIELD AND WATER USE EFFICIENCY OF POTATO IN SUBSURFACE DRIP IRRIGATION

Writers

JOLAINI M. | KARIMI M.

Pages

 Start Page 51 | End Page 60

Abstract

 Introduction: After wheat, rice and corn, POTATO is the fourth most important food plant in the world. In comparison with other species, POTATO is very sensitive to water stress because of its shallow root system: approximately 85% of the root length is concentrated in the upper 0.3-0.4 m of the soil. Several studies showed that drip irrigation is an effective method for enhancing POTATO yield. Fabeiro et al. (2001) concluded that tuber bulking and ripening stages were found to be the most sensitive stages of water stress with drip irrigation. Water deficit occurring in these two growth stages could result in yield reductions. Wanget al. (2006) investigated the effects of drip irrigation frequency on soil wetting pattern and POTATO yield. ...

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