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Production and nutritional attributes of tobosa grass hilaria mutica following burning

Production and nutritional attributes of tobosa grass hilaria mutica following burning

Southwestern Naturalist 28(3): 347-352

Tobosagrass (H. mutica) was prescribed burned in mid-Feb. and late March. Sequential harvests were used to compare growth curves from the different burn dates to an unburned control. Crude protein concentration, moisture content and digestible organic matter were determined for all samples. Final yields taken in late July were 2357, 1950 and 620 kg/ha for the mid-Feb. burn, late March burn, and control, respectively. At growth initiation, crude protein concentration for new growth varied from about 15-20%, then decreased to about 7% by July. Moisture content of tobosagrass from burned areas decreased from about 65% early in the growing period to below 30% in July. Moisture content of the control (old standing dead + new growth) increased to a high of over 30% in early May, then decreased below 20% by July. Digestibility of new growth from all treatments were similar by sampling date and varied from about 40-60%. Old standing dead digestibility varied from 14-23%.

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Accession: 006190165

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