1. Effect of Manure Applications Compared to Commercial Fertilizer for Total Nitrogen in Dryland Winter Wheat (Triticum Aestivum L.)

The Magruder plots are one of the staples in research agriculture not only in Oklahoma but across the country. The historic data gathered from the Magruder Plots allows for the analysis of long term data sets in excess of 124 years of data.  The Magruder treatment structure allows for the comparison of the added benefits of manure applications as compared to inorganic sources of fertilizers. Manure applications were made once every four years as a total nitrogen source compared to annual... B. Arnall, R. Singh, R. Sharry