Fertilizer Changes Changes in fertilizer rates were also examined. Users were asked "In the time you have had your crop consultant, how have the following practices changed?" Nonusers were asked, "In the past 5 years, how have the following practices changed?" The largest differences between the groups were on nutrient rate changes. Seventy-two percent of the users indicated a change in nitrogen (N) rates has occurred since using a crop consultant, while 58 percent of the nonusers indicated a change in N rates in the last 5 years. Examining changes in phosphorous and potassium (P and K) rates, 77 percent of the users indicated they have made a change in rates during the time they have had a crop consultant while 38 percent of nonusers indicated they have changed rates in the past 5 years. When asked to indicate the specific changes they made in fertilizer rates, 85 percent of the users commenting noted they have decreased both their rates of N, and P and K, since employing a crop consultant. |
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