1. Department of Soil and Environmental Science, Ghazi University, Dera Ghazi Khan, Pakistan;
2. Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan;
3. Department of Soil and Environmental Science, Muhammad Nawaz Sharief University of Agriculture, Multan, Pakistan;
4. Department of Agronomy, Ghazi University, Dera Ghazi Khan, Pakistan