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y UNITED STATES DEPARTMENT OF AGRICULTURE TECHNICAL GUIDE <br /> • Soil Conservation Service Section IV <br /> Colorado December, 1976 <br /> STANDARD AND SPECIFICATIONS <br /> Mulching (Code 484) <br /> Standard <br /> Definition <br /> _ — Applying plant residues or other suitable materials not produced on the <br /> site to the soil surface. <br /> Purpose <br /> To conserve moisture; prevent surface compaction or crusting; reduce <br /> runoff and erosion; control weeds; and help establish plant cover. <br /> Where applicable <br /> On soils subject to erosion on which low-residue-producing crops, such <br /> as grapes and small fruits are grown; on critical areas;. and on soils <br /> that have a low infiltration rate. <br /> • SPECIFICATIONS <br /> A. General <br /> 1. The area shall be relatively smooth and free of gullies or drifts. <br /> 2. Mulching material shall be applied immediately before or after <br /> seeding unless seed is applied with mulch. When stabilizing sandy <br /> soils it is recommended that seeding will be done after mulch <br /> application to prevent seeding too deep. <br /> B. Straw or Hay Mulch <br /> 1. The material will be grass hay or cereal grain straw. (Both <br /> referred to as straw in these specifications) <br /> 2. The normal rate of application shall be 4 ,000 lbs/Ac of air dry <br /> material. <br /> —--- 3. At least 50% of the mulch by weight shall be 10 inches or more <br /> in length. <br /> 4. The straw will be free of noxious weeds. <br /> ��.... S. Mulch Anchoring-apply immediately after distributing straw. <br /> _ Page 1 of 2 <br /> ' l..W',. 7-Y•IL tiN.SI�4Yi:'Y_'i.�•E <br />