It is generally only used during the daylight saving time for places that observe Pacific Standard Time (PST) during the non-daylight saving period. As mentioned earlier, most parts of Arizona do not observe daylight saving time, so these parts remain on MST. The Navajo Nation lands, which extend to the states of Arizona, New Mexico and Utah, observe daylight saving time from April to October.
The nature of chaff is different enough from wheat to render it worthy of fire. If you plant a little of the stem or stalk of the wheat plant, it will not grow. If you tried to sell it, you might get a few pennies, but not anything like that of the grain itself.
Figure 1. Wheat residue being burned just ahead of wheat planting, September 30, 2013, Dickinson County. Photo by Photo by Jim Shroyer, K-State Research and Extension. If producers choose to burn their wheat stubble, timing is important. Itâs best to burn as late as possible, close to the time of wheat planting. This minimizes the time that the field will be without residue cover and vulnerable to erosion of surface sealing.