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<br />I <br /> <br />I <br />I' <br />i' <br />I <br />1 <br />I' <br /> <br />2026 <br /> <br />Grain corn can be grown as both an irrigated and dryland crop in <br /> <br />Colorado. However, successful dry land corn production is limited <br /> <br />to areas with sufficient spring and summer rainfall which is required <br />to bring the crop to maturity and obtain economic yield and <br /> <br />acceptable quality. Dryland grain corn cannot be produced on the <br /> <br />Ute Indian reservations. Grain corn can be produced under <br /> <br />t' <br />irrigation in areas of lower elevation on the Ute Indian reservations <br /> <br />where climatic conditions are conducive to economic production. <br /> <br />I <br />t <br />I <br />, <br />.~ <br />I <br />I <br />I, <br />t <br />I <br />I <br />I <br /> <br />Climatic conditions summarized in Section 4 impact the suitability <br />of grain corn to achieve economic yields in different climatic zones. <br />Table 6.20 summarizes grain corn sui tabi 1 i ty and esti ma ted potential <br />yield for each climatic zone. <br /> <br />In general, corn is well suited to a wide range of soil types. This <br />is evidenced by the widespread production of the crop throughout many <br />different environments. However, the crop performs best on deep, <br /> <br />well drained, medium textured soils. In cooler climates, corn <br /> <br />performs well under irrigation on deep, light textured and sandy <br />soils that warm quickly in the spring. Corn is moderately sensitive <br />to soil salinity. The critical soil salinity level at which yield <br />decreases may occur in corn is at or above about 1.7 mmhos/cm. <br /> <br />Irrigation water <br /> <br />micromhos/cm may <br /> <br />salinity values <br />also reduce grain <br /> <br />greater than <br />corn yields. <br /> <br />about <br />Table <br /> <br />1100 <br />6.21 <br /> <br />6- 31 <br />