Chattha, H. S., Q. Zaman, A. W. Schumann, G. R. Brewster, Y. K. Chang, and S. Read. 2013. Evaluation of Modified Variable Rate Granular Fertilizer Spreader for Spot-Specific Fertilization in Wild Blueberry Fields. Annual International Meeting ASABE, Kansas City, USA. July 21-24, 2013.
Chattha, H. S., Q. Zaman, A. W. Schumann, G. R. Brewster, Y. K. Chang, and S. Read. 2012. Variable Rate Granular Fertilizer Spreader For Spot Specific Fertilization. WBPANS annual meeting, Truro, NS, Canada.
Chattha, H. S., Q. Zaman, A. W. Schumann, G. R. Brewster, Y. K. Chang, and S. Read. 2013. Variable Rate Granular Fertilizer Spreader For Spot Specific Fertilization. Graduate research day, Faculty of Agriculture, 黄色直播, Truro, NS, Canada.