IRRIGATION SCHEDULING OF WHEAT AT DIFFERENT NITROGEN LEVELS IN SEMI-ARID REGION

Year 2017, Volume: 22 Issue: 1, 63 - 70, 15.06.2017

Muhammad Usman Bashır Syed Aftab Wajıd Ashfaq Ahmad Muhammad Awaıs Muhammad Aown Sammar Raza Ghulam Mustafa Tahır Umer Saeed Muhammad Habib Ur Rehman Muhammad Waqas Shahid Abbas

https://doi.org/10.17557/TJFC.303880

Abstract

Appropriate nitrogen and optimum irrigation scheduling ensure economic yield. To access the behavior of
development, growth and yield of wheat in response to nitrogen rates (80, 120 and 160 kg ha-1
) and irrigation
scheduling, an experiment was conducted at Agronomy Research Area, University of Agriculture, Faisalabad
using Randomized Complete Block Design in split plot arrangement. It was observed that accumulated
thermal time and photo-thermal time derive the crop phenology. Calendar time of growth stages may vary
depending upon the prevailing climatic conditions particularly minimum and maximum temperatures.
Application of 120 kg ha-1 nitrogen (F2) resulted in maximum LAI (4.21 & 4.73), mean crop growth rate (9.38
& 9.14 g m-2 d
-1
), and grain yield (3100 & 3265 kg ha-1
). Full irrigation performed better in terms of maximum
LAI (4.97 & 5.46), mean CGR (10.89 & 12.66 g m-2 d
-1
) and grain yield (3735 & 4603 kg ha-1
). Application of
120 kg Nitrogen ha-1 and full irrigation were found to be the best management practices for better growth and
to attain maximum grain yield.

Keywords

Growth, Phenology, Triticum aestivum, Yield

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