Tuesday, October 29, 2013
Usually at this time of year, we are worried about soil temperature as relates to nitrogen application. This year, soil temperatures have dropped below the 50 degrees Fahrenheit mark fairly early. Click on the hourly reading for the 10AM temperature. One thing we don't usually consider is soil moisture. I saw some fields where nitrogen was applied after chisel plowing. The soil that was chisel plowed was very dry. Moisture is needed to bind the nitrogen to the soil particles. I think we have enough moisture if the soil is undistured. The rain this week might moisten things up enough to make this a non-issue. Also keep in mind that the only material to fall apply is the ammonium form of nitrogen. Also, be sure to use nitrification inhibitors fora ll fall applied nitrogen. Temperatures may be coll enough now, but they will likely warm up in spring. Some loss prevention is in order.