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On sites where equipment can operate, the seedbed shall be adequately loosened <br />(4 to 6 inches deep) and smoothed. Chiseling, discing, harrowing, or <br />cultipacking may be required. Work shall be done on the contour where <br />practicable. Slopes too steep for the above operations shall be tracked up <br />and down slope with a crawler tractor. <br />On sites where equipment cannot operate, the seedbed shall be hand raked or <br />otherwise prepared by hand by scarifying to a minimum depth of one (1) inch to <br />provide a roughened surface so that seed will stay in place. <br />Seedbed preparation shall be suspended when soil moisture conditions are not <br />suitable for the preparation of a satisfactory seedbed as determined by the <br />PROJECT MANAGER. <br />Seed Mixtures The CONTRACTOR shall be required to supply the seed. The seed <br />mixture designated below shall be uniformly sown over the areas to be <br />vegetated at the minimum rates per acre indicated below. Seeding shall not be <br />done if the ground is frozen. All rates are for drill seeding; therefore, the <br />rates for broadcast seeding are double the drilled rate. <br />~ecies, Variety <br />Pubescent Wheatgrass, Luna <br />Green Needlegrass <br />Western Wheatgrass, Arriba <br />Blue grama, Covington <br />Sideoats grama, Vaughn <br />Indian ricegrass, Paloma <br />Smooth brome, Lincoln <br />Cicer milkvetch, Monarch <br />Alfalfa, Ladak <br />Palmer penstemon <br />LBS/Acre <br />Latin Name PLS <br />Agropyron trichophorum 1. 5 <br />Stipa viridula 1. 0 <br />Agropyron smithii 2. 5 <br />Bouteloua gracilis 0. 5 <br />Bouteloua curtipendula 1. 5 <br />Oryzopsis hymenoides 1. 0 <br />Bromus inermis 1. 0 <br />Astragalus titer 0. 5 <br />Medicago sativa 0. 5 <br />Penstemon Palmeri 0. 1 <br />TOTAL 10.1 <br />The computations for quantity of <br />percentage of purity and percent <br />compensate for the percentage of <br />furnishing and applying sufficiei <br />requirement. Product comparison <br />in pounds. The formula used for <br />(PLS) shall be: <br />seed required shall be based on the <br />of germination. The CONTRACTOR shall <br />purity or germination of the seed applied by <br />it seed to equal the specified pure live seed <br />shall be made on the basis of pure live seed <br />determining the quantity of pure live seed <br />Pounds of Seed x (Percent Purity X Percent Germination) _ <br />Pounds of Pure Live Seed (PLS) <br />_10_ <br />