OCR Text |
Show 4 Bulletin No. 173 Most of the irrigation water of Cache Valley comes from streams flowing out of the east mountains. Logan River is the largest of these and is fairly typical. Some of the smaller streams, however, are entirely dry by the early part of August. The storage for power purposes of the waters of Bear River which flows through the northwestern part of the valley, is doing much to increase the late water supply of land that is served by this stream. Other means should be sought to increase the late water of the valley so that large acreages of such crops as alfalfa* sugar- beets, and potatoes could take the place of some of the wheat and oats that are raised at present. CONDITIONS OP THE EXPERIMENTS The experiments reported in this bulletin were conducted on a deep, uniform loam soil with excellent' under- irrigation, two miles north of the Agricultural College at Logan. The soil is typical of that extending around the valley between the shallow bench soil and the heavy soil in the center of the valley. The soil and conditions of the experiments are described in detail in Utah Station Bulletin No. 115. The results can be said to hold strictly only for soils of the same general type as those on which Fig. 1.- Total precipitation at Logan, Utah, during each year from 1902 to 1920. |