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342-4 Critical Area Planting • <br /> Mulching <br /> Critical area plantings shall be mulched where rapid establishment of seeded <br /> species is essential , or where one or more of the following factors are likely <br /> co cause failure of Elie planting, as determined by the responsible technician. <br /> 1. Low or erratic precipitation <br /> 2. Droughty or slowly permeable soils <br /> 3. High soil temperatures <br /> 4. Erosive soils <br /> 5. Drying winds <br /> llhere need for mulching has been determined, follow standard and specifications <br /> for "Mulching" (484) . Cover crops or crop residues produced on the site will <br /> satisfy mulching requirements if present in sufficient quantity to provide <br /> needed soil protection and moisture conservation. <br /> Planting trees , shrubs and vines <br /> 1 . Planting of woody plants must be done in late winter or early spring before <br /> bud burst . <br /> 2. Roots shall be kept moist at all times before planting. <br /> 3. Roots should be spread out as close to natural position as possible during <br /> planting. <br /> G. Holes shall be deep and wide enough to accommodate seedlings without bending <br /> roots . <br /> 5. Stock should be set the same depth as in the nursery or slightly deeper. <br /> In no case should a plant be set shallower than it was in the nursery. <br /> 6. Soil shall be packed well around roots until seedling cannot be easily pulled <br /> from the ground. Care should be taken to eliminate all air pockets in the <br /> soil around the roots. <br /> 7 . Plants sh,n11 be watered at planting time. <br /> Supplemental water for establishment of plantings <br /> 1. Seeded plantings. In low rainfall areas, where water is available and where <br /> rapid establishment is needed, irrigation of new seeding should be performed <br /> during the first growing season. Water should be applied at approximately <br /> 1-week intervals , at a race of 314 - 1 inch per application, when rainfall <br /> is deficient for plant development . <br /> 2. Woody plantings . Woody transplants should be watered at time of planting, <br /> followed by application of at least 1 gallon per plant per week, applied <br /> to the soil at the base of the plant during the first growing season. <br /> USDA/SCS/Colorado-7/81 TGN C170 <br />