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• . <br /> <br />UNITED STATES DEPARTMENT OF AGRICULTURE <br />Soil Conservation Service <br />Colorado <br />STAN DARUS ANU SPECIFICA'CLON <br />r1ULCHING - 484 <br />(Acre) <br />rt` <br />C~ <br />Standard <br />Technical Guide <br />Section IV <br />All Field Offices <br />February 1982 <br />Definition li. SCrnw ur Ilay Mulch <br />Applying plant residues or other I. 'I'hc innteri.il will be grass <br />ma [erials not produced on the site to hay or cereal gain strew (both <br />[he soil surface. referred to as straw in these <br />specifications). <br />Purpose <br />'Co conserve moisture; prevent surface <br />compaction or crusting; reduce runoff <br />and erosion; control insects; and help <br />establish plant cover. <br />Conditions where practice applies <br />On soils subject to erosion on which <br />low-residue-producing crops, such as <br />grapes and small Fruits are grown; un <br />critical areas; and on soils that have <br />a low infiltration rate. <br />2. fhc iiunuaL sate of appli- <br />cation shall bu 4,(1(10 lbs/ac. of <br />air-dry material spread uniformly <br />over the area. <br />3. AC least 5U"/> of the mulch <br />by wci+;ht shall be 10 inches nr <br />inure in J.englh. <br />4. Thr str.iw will be Lrec of <br />nu:t loos weeds. <br />5. One ul: Chu following <br />methods of anchoring the straw <br />mulch will be used: <br />Specifications <br />A. General <br />1. The area shall be relatively <br />smooth and free of gullies or drifts. <br />2. Ptulching material shall be <br />applied immediately before or after <br />seeding unless seed is applied with <br />the mulch. When stabilizing sandy <br />soils it is recommended [hat seeding <br />will be done after mulch application <br />to prevent seeding Coo deep. Fur <br />additional infurm,ition refer to <br />A;;ronumy 'technical Note 1147 (Rev. l) <br />a. Manufactured mulch <br />netting: Mulch netting w~i11 be <br />IiuLied hand tight over straw. <br />Mulch netting will be held fi ~~ly <br />in place by metal pins commer- <br />cially available from mulch net <br />manufacturers Eor this purpose. <br />They are usually made uE 8 gunge <br />wire and are 6-5 inches long. Pin <br />spacing wi.lL be in accordance with <br />thu mnnufartur~:r's instructions. <br />[I` [lie :;oil i-; s.indy ur nther.wise <br />lun:~., use luii~;ci pins :uul wuudc;n <br />stn kes Cu Firmly su c~.iru Chc <br />neCCfng. <br />'I'GN llIR2 ~/8~~ <br />26 <br />