He quotes zinc nitrate at 38 cents per pound in 55 gallon drums weighing 600 pounds each FOB Charlotte. It was necessary to patent the product so that the company would have some protection from competitors while they recovered their development costs. Since I developed the product I was the logical person to file for the patent, otherwise Allied would not have invested development costs in the fertilizer. The royalty lasted only 5 years and amounted to only a few thousand dollars which was shared with the Texas Agricultural Experiment Station. The check that I received was shared with my technicians who did the field and lab work and the remainder that I received was put back into the zinc research program.
More hormone means larger leaves, longer shoots, and ultimately larger crops of quality pecans.
The uan used in NZN is carefully monitored to make sure that biuret concentrations remain below the safety margin. Our lab can analyze uan samples for biuret for those who want to be safe. Zinc sulphate will severely burn peach leaves. After graduation Grady L. Wadsworth had a distinguished career as Vice President of Operations at Green Leaf Nursery near El Campo, TX where be moved up in the ranks from 1973 until his untimely death on September 9, 1992. The pecan industry is indebted to him for his pioneering research as a graduate student where it was obvious that he was destined to make a real impact in the horticultural industry.