GENERAL37489 - Laserfiche WebLink

Home Browse Search

Seed Mixture for J Birds Plan of Operation (COC68907) Standard Native Seed Mix for Sagebrush and Pinyon-Juniper Zone Mid Elevations (6,000-8,000') This native seed mix should work well in the mid elevation zone in the l 1-16" rainfall wne. Use the complete mix on larger projects where substantial amounts of ground will be disturbed, and the likelihood of reseeding from adjacent vegetation is low. On small projects where linear or small patches of vegetation are disturbed and there is abundant adjacent native vegetation for reseeding, use just the bottlebrush squirreltail and western wheatgrass (at 4 Ibs PLS seed for each species per acre, under the drill rate, double this rate for aerial application with no seed incorporation). Price and seed availability vary, so not all species may be available at [he time you need them, or priced affordably. However the major ones should usually available. The rate shown below is for a drilled seeding, or some other method that incorporates the seed into the soil. Rates should be doubled if the seed is to be aerially applied. [f price or availability is a concern, reduce or leave out those species and increase percentages of remaining species correspondingly (column A in table below, total to this column should equal 100%, carry through changes in columns B, D, and E following instructions under column headings). BLM places the following requirements on seed mixes which are put on BLM lands: 1) Use the followin minimum PLS (Pure Live Seed) tolerances PLS tested % Tolerance % points 81-100 -7 61-80 -6 41-60 -5 21-40 -4 0-20 -3 2) All seed must comply with BLM and Colorado weed seed guidelines. There should be no prohibited species seed, and no more than allowable levels of restricted species seed. (n addition, there should be no more that 0.5% total weed seed, less than 2% other seed, and no trash larger than '`/a" in length. Seed shall not be stored in burlap bags. 3) The UFO places additional local restrictions on seed to minimize cheatgrass spread. If seed tests show any Bromus tectorum or Bromus japonicus, the BLM should be consulted with for approval. No mix placed on BLM shall contain more than 150 seeds. 4) BLM requires additional seed tests on seeding projects that are greater than 20 acres and/or require over 200 Ibs of seed. For these seeding projects, the project proponent should have the seed supply company store the purchased seed prior to mixing, and pull samples to be sent to a certified laboratory, preferably Colorado State Laboratory at the following address. Seed test results must comply with the criteria listed above before seed is mixed, shipped and applied to the project area: Colorado State Laboratory Colorado State University Department of Soil and Crop Sciences Fort Collins'CO 80523 5) BLM will need copies of seed tags and test results for all seed applied regardless of project size. 6) Only State Certified weed free mulch shall be used.