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Class III. Soils in Class III have more restrictions than those in Class II and when <br />• used for cultivated crops The conservation practices are usually more difficult to <br />apply and to maintain. They may be used for cultivated crops, pasture, woodland, <br />range, or wildlife food and cover. <br />Class IV. Soils in Class IV have very severe limitations that restrict the choice of <br />plants. When these soils are cultivated, more careful management is required and <br />conservation practices are more difficult to apply and maintain. The soils may be <br />used for crops, pasture, woodland, range or wildlife food and cover. <br />Class V. Soils in Class V have limitations that restrict the kind of plants that can <br />be grown and that prevent normal tillage of cultivated crops. They are nearly level <br />but some are wet, frequently overflowed by streams, stony, have climatic limitations, <br />or have some combination of these limitations. Pastures can be improved and <br />benefits from proper management can be expected. <br />Class VI. Physical conditions of soils placed in Class VI are such that it is practical <br />to apply range or pasture improvements, if needed, such as seeding, liming, <br />• fertilizing, and water control with contour furrows, drainage ditches, diversions, or <br />water spreaders. Soils in Class VI have continuing limitations that cannot be <br />corrected, such as (I) steep slope, (2) severe erosion hazard, (3) effects of past <br />erosion, (4) stoniness, (S) shallow rooting zone, (ti) excessive wetness or overflow, (7) <br />low moisture capacity, (8) salinity or sodium, or (9) severe climate. Because of one <br />or more of These limitations these soils are not generally suited to cultivated crops. <br />But they may be used for pasture, range, woodland, or wildlife cover or for some <br />combination of these. <br />Class VII. Physical conditions of soils in Class VII are such that it is impractical to <br />apply such pasture or range improvements as seeding, liming, fertilizing, and water <br />control with contour furrows, ditches, diversions, or woter spreaders. Soil <br />restrictions are more severe than those in Class VI because of one or more continuing <br />limitations that cannot be corrected, such as (I) very steep slopes, (2) erosion, (3) <br />shallow soil, (4) stones, (5) wet soil, (6) salts or sodium, (7) unfavorable climate, or <br />(8) other limitations that make them unsuited to common cultivated crops. They can <br />be used safely for grazing or woodland or wildlife food and cover or for some <br />• combination of these under proper management. <br />2.9-IS <br />