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<br />I <br />I <br />I, <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 /> <br />'U"i'i <br /> <br />different climatic zones. Tables 6.32 and 6.33 <br /> <br /> <br />suitability and potential yield of oat grain and <br /> <br /> <br />climatic zone judged suitable for oat production. <br /> <br />summarize <br /> <br />hay for <br /> <br />the <br />each <br /> <br />Oats can produce satisfactory yields on a wide range of soil types <br /> <br />provided the soil is well drained and fertility is maintained. In <br />general, medium textured soils such as loams, clay loams, and silt <br />loams are best sui ted for oat product ion. Oats have moderate <br />tolerance to soil salinity and may begin to show yield reductions at <br />salt concentrations of about 4.0 mmhos/cm. Application of <br /> <br />irrigation water with concentrations exceeding about 2,700 <br /> <br />micromhos per cm (estimated) may also reduce yields. Table 6.34 <br />summarizes the impact of irrigation water salinity on potential oat <br />yields based on anticipated irrigation water sources for the Ute <br />Indian reservation identified in Section 4 (see Table 4.1). Salt <br /> <br /> <br />concentrations in these waters vary markedly; however, irrigation <br /> <br /> <br />water salinity is not sufficiently high to result in oat yield <br /> <br /> <br />reductions. <br /> <br />Crop cultural practices are summarized in Table 6.35 for both oat <br /> <br />grain and oat hay. These cultural practices are used in each <br /> <br />climatic zone judged suitable for oat production. Fertility <br />requirements, summarized in Tables 6.36 and 6.37 vary in each <br />climatic zone. <br /> <br />6- 49 <br />