Laserfiche WebLink
<br />Revised 04/20/90 <br />Section 780.18(b) Continued. <br />• <br />fertilization Plan <br />Presently, it is anticipated that no <br />will be necessary for revegetation <br />nutrients or amendments are needed, <br />recommended rates and will be <br />recommendations of Ludwick, et. al. <br />use of rangeland. <br />fertilizer or soil amendments <br />at the Kerr Mine Area. if <br />they will be applied at the <br />supplied according to the <br />(1975) for the postmining land <br />Due to the potential shortage of topsoil at the Kerr Tipple, Kerr <br />Coal will apply fertilizer to improve soil properties and increase <br />the likelihood of plant establishment at the Kerr Tipple Area. <br />Fertilizer will be applied both in the form of the topsoil mulch and <br />as supplemental nitrogen and phosphorus. Specifically, supplemental <br />nitrogen will be applied at the rate of 200 pounds per acre and <br />phosphorus will be applied at the rate of 80 pounds per acre. The <br />basis upon which Kerr Coal makes this determination was thoroughly <br />explained in the previous tipple amendment submitted to CMLRD dated <br />November 16, 1979. Although existing soil tests (Table 45, Soil <br />Chemical and Physical Properties Lab Analysis Kerr Tipple Area) <br />reveal that N0,-N levels are present but low, the application rate <br />suggested by Ludwick et. al. (1975) is used since the sail as applied <br />will be too thin to directly compare with undisturbed soils. Since <br />the existing reservoir of plant available nutrients is lower in the <br />two inches of reapplied topsoil, the standard practice of evaluating <br />a 12 inch column of topsoil should be used with reservation. Since <br />Ludwick et. al. (1975) recommended 200 lbs. per acre of supplied <br />nitrogen for areas where the soil tests shown 0.0 ppm N0,-N and 80 <br />lbs. per acres P20, for soils with 0.0 ppm <br />780-86 <br />