Research Article
Azotobacter and L-tryptophan Application for Improving Wheat Yield
Department of Soil Science, University of Agriculture, Faisalabad-38040, Pakistan
Zahir Ahmad Zahir
Department of Soil Science, University of Agriculture, Faisalabad-38040, Pakistan
Azhar Waseem
Department of Soil Science, University of Agriculture, Faisalabad-38040, Pakistan
Muhammad Arshad
Department of Soil Science, University of Agriculture, Faisalabad-38040, Pakistan