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Livestock grazing comparison is a method of comparing the numbers and density of livestock grazing in agriculture.Various units of measurement are used, usually based on the grazing equivalent of one adult cow, or in some areas on that of one sheep.
State grass Scientific name Image Year adopted California: Purple needlegrass: Nassella pulchra: 2004 [1] Colorado: Blue grama: Bouteloua gracilis: 1987 [2] Illinois: Big bluestem (state prairie grass) Andropogon gerardii: 1989 [3] Kansas: Little bluestem: Schizachyrium scoparium (Andropogon scoparius) 2010 [4] Minnesota: Wild rice (state grain ...
B Poor: <50% ground cover; Fair: 50-75% ground cover; Good: >75% ground cover. C Actual curve number is less than 30; use CN = 30 for runoff computation. D CN's shown were computed for areas with 50% woods and 50% grass (pasture) cover. Other combinations of conditions may be computed from the CN's for woods and pasture.
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Growing degree days (GDD), also called growing degree units (GDUs), are a heuristic tool in phenology.GDD are a measure of heat accumulation used by horticulturists, gardeners, and farmers to predict plant and animal development rates such as the date that a flower will bloom, an insect will emerge from dormancy, or a crop will reach maturity.
The leaf blades are typically 10–50 cm (4– 19 + 1 ⁄ 2 in) long and 1–10 millimetres (1 ⁄ 16 – 3 ⁄ 8 in) wide. The plant produces 2-flowered fertile spikelets. The plant produces 2-flowered fertile spikelets.
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The optimal soil conditions for marram grass is a soil pH from 4.5 to 9.0, soil temperatures from 10–40 °C (50–104 °F), [17] and salt concentrations of no more than 1.0-1.5%. [18] Marram grass can also be found on alkaline soils with a high pH of around 9.1 and also acidic soils with pH less than 4.5.