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<br />UNITED STATES • Natural Resources • 595 Nelson Road #D <br />DEPARTMENT OF Conservation Longmont, CO. 80501 <br />AGRICULTURE Service Phone: 303-776-4034 <br />Fax: 303-684-9893 <br />Serving Adams, Boulder and Weld Counties <br />RECEIVED <br />Mr. Chester Barnard <br />P.o. Box s6 UCC 22 1996 <br />Lyons, Colorado 80540 <br />Diviaian.ot m~nera~s ti Geology <br />RE: Seeding Recommendation <br />Reseeding on the quarry sites in the area north of Lyons is <br />difficult at best. Soils are very thin and generally low in <br />organic matter. Most of the soils are classified as Pinata Rock <br />and are characteristically found in this transition zone between <br />the plains and foothills. These soils are a stony sandy loam. <br />Runoff is rapid and the erosion potential is high. <br />To reclaim and seed the site, I would recommend slopes be shaped <br />and graded to no more than 4:1 with flatter slopes (6:1) being <br />more desirable. Slopes should be protected from off site water <br />running across them by installing diversions, if needed. A soil <br />sample should be taken to determine fertilizer requirements but <br />no less than 40# of Nitrogen and 40# Phosphorous should be <br />applied. Fertilizer should be applied immediately prior to <br />seeding and lightly worked into the soil. <br />These sites are best adapted to native species of grass. The <br />following mix would be recommended for the site: <br />Covington Blue Grama 1.0#/ac. ~ 20~ _ .2#PLS/ac. <br />E1 Reno Side Oats Grama 4.5#/ac. ~ 30~ = 1.5#PLS/ac. <br />Rosanna Western Wheat 8.0#/aC. @ 30$ = 2.4#PLS/ac. <br />Lodorm Green Needlegrass 5.0#/ac. ~ 20Yr = 1.0#PLS/ac. <br />The mix could be supplemented with Mountain Mahogany or Four <br />winged Saltbush. All seed should be of high quality and have a <br />current certification date (within the last twelve months). If <br />the seed is broadcast or a hydro-mulcher used, the above rates <br />should be doubled. <br />After seeding is completed, the area should be mulched with <br />approximately 4,000# per acre of native hay or clean, bright, <br />weed free straw. The mulch should be spread uniformly and <br />'crimped' into the soil. The exception would be with hydro- <br />seeding where mulching is not be needed. <br />All weeds should be controlled to allow the grass a chance to <br />become established. Care should be exercised, especially in the <br />use of chemicals. Manufacturers' labeling should be strictly <br />adhered to and chemicals applied only by qualified applicators. <br />