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on straw mulched soil should be adisc because the normal type of drag implements, such as tooth harrows, are likely to clog with mulch. • Ideally the seedbed will: 1) have a relatively cloddy surface: 2) have a surface mulch that will not clog a disc drill; 3) have a relatively uniform grade so that all drill openers penetrate on a given pass of the drill; 4) contain sufficient moisture near the s~~rface to germinate seed and sustain the seedlings for several week's; 5) contain relatively few weed seeds near the surface and; 6) contain sufficient available plant nutrients to sustain the plant seedlings. Straw mulch will be used for soil erosion control on bare soils. Were the mulch not used, soil erosion by intense thunderstorm runoff would be more likely to occur on those areas where the grasses had not yet established themselves. Wative hay of any age will make a satisfac- tory mulch and will be hauled in bales to the mine site and °;cattered • manually at a rate of 1.5 to 2.0 tons per acre. The application of the mulch to the topsoil can be accomplished during those season~~ when there is no snow cover and the ground is not frozen. Within a few days of applying the mulch, it should be disced into the soil. Projecting a fertilizer application program for revegetation operations on the basis of unknown topsoil fertility may not result in optimum re- commendations. However, for initial planning purposes, Cotter Corporation proposes to apply fertilizer to the topsoil subsequent to seeding at the rate of 50-60 pounds of nitrogen per acre, 50-60 pounds of phosphate (P205) per acre and 50-60 pounds per acre of potash. (Reclamation costs in Exhibit L will be based upon the fetilizer application rates listed above.) The application of fertilizer during the second year after emergence will be predicated on the initial stand of grass ob- E-11