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Response of potato to nitrogen application methodologies.

Author(s)
C. M. Ayyub Institute of Horticultural Science, University of Agriculture, Faisalabad, Pakistan
Muhammad Amjad Institute of Horticultural Science, University of Agriculture, Faisalabad, Pakistan
Waqar Ahmed Institute of Horticultural Science, University of Agriculture, Faisalabad, Pakistan
Khurram Ziaf Institute of Horticultural Science, University of Agriculture, Faisalabad, Pakistan
M. I. Khan Department of Math. and Stat, UAF
Abstract
A promising red potato variety Symphonia was taken to explore for various nitrogen application techniques like broadcast (BC), side dressing (SD) and foliar application. Optimal recommended dose of nitrogen (250 kg ha-1) were supplied from urea applied at planting and later on. Tuber emergence percentage, number of aerial stems, leaves plant-1, plant height, number of tubers, foliage and tuber fresh and dried weight plant-1 and tuber yield ha-1 were found to be better in case of T10 = BC+SD, followed by T7 = BC+BC, T11 = SD+BC and T4 = SD after 30 days of planting. Similarly, some of the tuber qualitative characters like TSS, specific gravity, dry matter contents were also better comparatively in case of initially broadcasted or later on side dressed nitrogen as compared to full basal dose (broadcasted or side dressed) and foliar application of nitrogen. On the other hand some qualitative characteristics like tuber’s moisture, nitrogen, phosphorus, potassium and crude protein contents were improved in case of foliar application of nitrogen, followed by initially side dressed or full basal single dose of nitrogen as compared to better performing treatments for all other quantitative characters.
Publication Details
Page(s) 45-49
DOI DOI not available
Published Journal: Pakistan Journal of Agricultural Sciences, Volume: 43, Issue: 1--2, Year: 2006

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