12-20-1976 Planning Packet - Laserfiche WebLink

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Prclimin;»rv Soil and Victoria Grain Co. Subdivision in Orono ^ . » STANDARDS /d.D s?;-:.*iKicATi:::3 GUirs r'o?. ?:sTi'3Li3:-:i::G 73-IPOMi VEGETATIVE COVER. s'- ‘ Definition Establishing: temporary vegetative cover on hig^ silt producing areas created during urban construction activities, Tliis includes the seeding of annual grasses, legumes, email grains or the use of anchored straw or hay mulch. Purpose To afford rapid cover for the control of accelerated runoff ar.d erosion during periods of construction on disturbed areas and until permanent vegetation or other stabilization material can be established. This practice is expected to give protection for a period of 6 to 12 months. Conditions Where Practice Applies On areas of land that are being converted from agricultural or related uses to urban develoiment and when the period of exi>08ure will be at least 60 days but generally less than 12 months. Specifications 1, Apply 500 lbs. per acre of 20-10-10 or equivalent fertilizer, 2, Incoirporate fertilizer into the top U feet of surface soil by disking or other suitable means, 3* Seed one of the following mixtures at the rate shown i)er acre: July 1 to September 15-2 bu, of rye (small grain) April 1 to July 1 - 3 bu, of oats May 20 to July 1 - 30 lbs, grain sorghum 30 lbs, Sudan grass Broadcast or drill seed uniformly and cover to a depth of ^ inch to approximately 2 inches, depending on the seeding mixture. Seed can be covered and seedbed firmed by the use of a corrugated cultipacker or other suitable equipment, 5, Temporary vegetative cover can be satisfactorily established on subsoils of the hif^er producing soils without the use of mulch, A mulch is recommended for use on adverse soil conditions, 6, On areas where permanent seodings are planned, temporary stabilization may be obtained by the use of anchored straw or hay mulch. The mulch material sliDu].d be spread uniformly at a rate of 3|000 to 1»,000 lbs, per acre and anchored with either asphalt, netting, mulch a.nchoring tool or a straigii disc, Permrjiont, seeding mi?:.ures may be overseeded on this I M mulch at a later date.