Browse Quality Affected by Pine Site Preparation in East Texas

An east Texas pine-hardwood forest was clearcut in 1972, and selected sites were burned, chopped, KG bladed, or left untreated in the winter of 1973-1974. Crude protein, calcium, and phosphorus content in leaves and twigs of four browse species were measured in April, September, and November after site preparation. Among site treatments, burning usually resulted in highest nutrient contents, followed by chopping, control, and KG blading. The levels of crude protein and phosphorus in all browse were highest in April, but declined in deciduous plants as the seasons advanced; evergreens held fairly constant levels through September and November. Calcium was low in spring but increased toward fall. Leaves contained more of the measured nutrients than twigs.

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