Yield response of wheat to nitrogen and potassium fertilization. | [Pure and Applied Biology • 2016]

Author(s):

1. Muhammad Adnan: Department of Agriculture, the University of Swabi, Pakistan

2. Zahir Shah: Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan

3. Hidayat Ullah: Department of Agriculture, University of Swabi, Pakistan

4. Bushra Khan: Department of Environmental Sciences, University of Peshawar, Peshawar, Pakistan

5. Muhammd Arshad: Mountain Agriculture, Research Center MARC Gilgit Baltistan, Pakistan

6. Ishaq Ahmad Mian: Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan

7. Gohar Ali Khan: Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan

8. Mukhtar Alam: Department of Agriculture, the University of Swabi, Pakistan

9. Abdul-Basir : Department of Agriculture, the University of Swabi, Pakistan

10. Inayat-Ur- Rahman: Department of Agriculture, the University of Swabi, Pakistan

11. Murad Ali: Department of Soil and Environmental Sciences, the University of Agriculture, Peshawar, Pakistan

12. 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.

Page(s): 868-875

DOI: DOI not available

Published: Journal: Pure and Applied Biology, Volume: 5, Issue: 4, Year: 2016

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