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~. <br />c. any modi=_ed equipment such as air seeders and drills <br />that control seedin5 depth with packer wheels must be <br />able 'to insure proper seeding depth, uniform seed <br />distribution, and firm seed-soil contact, Ground speed <br />will ;not exceed 4 to 4.5 mph so that proper seeding <br />depth can be maintained. <br />.d. AeriaJ~ seeding will not be used for any range seeding <br />except broadcast seeding on Pinyon and JuniFer sites <br />that are co be chazned. <br />e'. :dhen seeding ?~~''- that is to be irrigated with furrows <br />or corrugations, the soil must be firmly compacted and <br />in a condition to take irrigation water. In addition, <br />the seedi:~g must be drilled into the residue paz-allel to <br />- irrigation direction. In this seeding situation, the <br />' grass dri~I must have drpch control bands on bo~h uw~:c~ <br />and meet t`~e other drill requirements listed in l.a. <br />Z. ~ Range intersesding ~•'.ethod <br />a. '.-Jhere applicable <br />.- The Range Interseeding Method is an exception to the <br />seedbed preparation requirements specified previously. <br />~~~ This method is for seeding sandy sites which are highly <br />susceptible to wind erosion and w*:sre the introduction <br />of seed can be done with a minimum disturbance of soils <br />and existing cover or where desirable established <br />grasses are found in a very thin stand or in patches, <br />not uniformly throughout, but too abundant to destroy. <br />where the cover is principally annuals and no more than <br />a thin (?-~ percenr density} or scattered stand of <br />perennials, range interseeding will not apply. Such a <br />condition ~s to be drilled rather than interseeded. <br />{1) Range Interseeding will apply only to Deep Sandi <br />Cho~ov Sar-'.s, and Sa.+dv _go*tomla*~d range sites in <br />Eastern Colorado and special suii and cover prc:.le;n <br />seedings on Sandy Plains. <br />~~~~; (2) seedings with this method are to be performed with <br />~~.- a Range Interseeder capable of making a furrow :at <br />~_~ least 14 inches wida and 3-4 inches deep. <br />so^ _ ~ .. <br />a•~:•~ (3) Seeding rates are to be 1/2 to 2/3 the rate <br />_ ^ i:::~ specified for the species u:~der "seeding rate" in <br />. -.. Agrono;ay Technical Note No. 61. <br />TCPI#230 (Rev. 2) (page 9 of 16} 3C9 Colorado Janual'y 1991 <br />5~ <br />p~~ <br />