The Productivity and Nutritive Value of Imperata cylindrica (L) Beauv. in the Thai Highlands

Abstract
The rate of dry matter production after the annual pre-wet season burning, the rate of regrowth after cutting at 3 times during the year and the N content, P content and in vitro digestibility of I. cylindrica were studied in north Thailand over a 1-yr period. Dry matter production was slower than that recorded in more tropical regions and N content and digestibility correspondingly remained higher for longer. The slower growth rates recorded in this environment probably permitted Imperata to remain a useful forage for a longer period than is usually considered possible for this species.

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