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Yield response of wheat to nitrogen and potassium fertilization.
Author(s)
Muhammad Adnan Department of Agriculture, the University of Swabi, Pakistan
Zahir Shah Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan
Hidayat Ullah Department of Agriculture, University of Swabi, Pakistan
Bushra Khan Department of Environmental Sciences, University of Peshawar, Peshawar, Pakistan
Muhammd Arshad Mountain Agriculture, Research Center MARC Gilgit Baltistan, Pakistan
Ishaq Ahmad Mian Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan
Gohar Ali Khan Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan
Mukhtar Alam Department of Agriculture, the University of Swabi, Pakistan
Abdul-Basir Department of Agriculture, the University of Swabi, Pakistan
Inayat-Ur- Rahman Department of Agriculture, the University of Swabi, Pakistan
Murad Ali Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan
Wasif Ullah Khan Department of Plant Breeding and Genetics, University of Agriculture, Peshawar, Pakistan
Abstract
A field study was carried out to evaluate the impact of various nitrogen (N) and potassium (K) combinations on yield of wheat crop during winter 2012-2013. Two factorial randomized complete block design (RCBD) was used for the experiment. There were three levels of nitrogen (90, 120, 150 kg N ha-1) and five levels of potassium (0, 30, 60, 90, 120 kg K2O ha-1). Nitrogen used at the rate of 150 kg ha-1 significantly improved plant height, grains spike-1, 1000 grain weight, biological and grain yields of wheat. Similarly, K application at 90 kg K2O ha-1 significantly enhanced plant height by 8%, grain spike-1 by 11%, thousand grain weight by 18%, biological yield by 42% and grain yield by 27% over control however, further increase in K level to 120 kg K2O ha-1 did not significantly improve these parameters. It was concluded that N application at the rate of 150 kg ha-1 in combination with 90 kg K2O ha-1 were optimum for achieving higher yield of wheat.
Publication Details
Page(s) 868-875
DOI DOI not available
Published Journal: Pure and Applied Biology, Volume: 5, Issue: 4, Year: 2016
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