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<br />I <br />I <br />I <br />I <br />I <br />I <br />.' <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />2020 <br /> <br />better under cooler climatic conditions. However, winter barley <br /> <br />can be damaged by cold weather and is not suitable in areas where the <br /> <br />mean minimum temperature during the coldest month is less than about <br />20 degrees Farenheit. Winter barley is not considered suitable for <br /> <br />production on the Ute Indian Reservations because of potential <br /> <br />serious winter kill problems. <br /> <br />Climatic conditions summarized in Section 4 impact the suitability <br />of barley to aChieve economic yields in different climatic zones. <br />Table 6.16 summarizes irrigated barley suitability and potential <br /> <br />yield for each climatic zone. <br /> <br />In general, barley is suited to a wide range of soil types but <br />produces the best yields on well drained medium textured soils. <br />Grain yield and quality can be significantly reduced on imperfectly <br />drained heavy textured soils. Yield and quality are also often <br />reduced when barley is grown on light textured "droughty" soils. <br /> <br /> <br />Barley is well adapted to soils with salinity levels of 8 mmhos/cm or <br /> <br /> <br />lower and is tolerant of sodic soil conditions. <br /> <br />Irrigation with saline water can result in reduced barley yield. <br /> <br />Application of irrigation water with salinity levels greater than <br />about 5300 micromhos/cm may reduce barley yield. Table 6.17 <br />summarizes the impact of irrigation water salinity on potential <br />barley yield based on anticipated irrigation water sources for the <br />Ute Indian Reservations identified in Section 4 (see Table 4.1). <br /> <br />6- 25 <br />