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1 <br />1 <br /> <br />1 <br /> <br />1 <br /> <br /> <br />1 <br />1 <br /> <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br /> <br />121 <br />(31 <br />141 <br />(51 <br />• -11- • <br />Seedbed pr•eparatinn: <br />9'he seed}-red shall be well settled and firm, but friable <br />enowgh that seed can he placed at the seeding depths <br />snec_ified i.n "Depth of Seeding." The seedbed shall. be <br />rrasnnably free of creeds. Competitive stands of weeds that. <br />pre nrnsent before seedint; must be controlled by shallow <br />tillage or h}- apnl.icat.ion of herbicides labeled for this <br />purpose. Sn~i.l.s that have been over-r_ompacted by traffic or <br />equ.i.pment., esnecial]y when wet, should be t.i.lled to break un <br />root.inq restrictive layers, and then harrowed, rolled rir <br />pnclted t.n pr•enarc the required firm seedbed. <br />Pcrtili•r..cr reUttirements: <br />(al All cri.t,ical area plantings shall he ferti.Lized unless <br />field evidence or a .Laboratory soil analys.i.s ind.i.cates <br />sufficient. amounts of nitrogen and phosphorus are <br />present. for establishment of vegetation. <br />Ibl The rake of fertiti.zer application shall be nn less <br />than 40 pounds of nitrogen (N) and 40 pounds of <br />phosphate 1P2051 per acre. Animal manures or similar <br />organic material may be used to supply all or part of <br />the specified nutrients. <br />Icl Time of application shall he immediately prior to <br />seeding, at the time of seeding or immediately <br />following seeding, as applicable to the kind of <br />fr>r•ti]izer and type of equipment Used. <br />Methods of seeding: <br />lal Se:crl should he planted with a drill nn all slopes of 33 <br />percent. 13:1) or flatter. 'fhe dri7.1. must have the <br />capabilii;y of handling t;he kind and rate of seed beine <br />planted. <br />(hl Recd map he broadcast by hand, by mechanical spreader, <br />or by hydrau.l.ic equipment on areas that are small, ton <br />steep ar not accessible for seed-drill. operations. <br />This speciFication does not provide for h}•draulic <br />an}clication of seed applic..ation of seed and mulch i.n a <br />single operation. <br />llepth of seeding: <br />(al Seed planted with a drill sha.11 be covered with sail to <br />a depth of 1/4 to 3/4 inch. <br />(bl Seerl planted b7 the lroadcast method shall be <br />incorporated into the surface soil, not t.o eeceed ,~ <br />depth of 3/1 inch, by raking, harrowing or other proven <br />mr:thod. <br />Mulchine: <br />(a) ('r•it.ina] area planting shall he mulched because the <br />rapid establishment of the seeded species is essential <br />for site protection from erratic precipitation, drying <br />winds ;rod erosive soils. <br />IhI Rl.raw nr ha>• mulr;h will be grass hay or cereal grain <br />slrnw (hereaft.er referred t,n as straw) applied at a <br />r[r l.c nl' d(100 lbs/ac spread uniformly o~rer the aria. At. <br />lr-nv r. GO% of t.}ce mulch by weight, shall he 10 inches or <br />more in length. The straw sha.l.l. be free of al] noxipus <br />weeds. <br /> <br />