Effect of the first cut date on the yields and yield components of red clover-meadow fescue mixtures
Halina Ścibior
iung@iung.pulawy.plZakład Uprawy Roślin Pastewnych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy (Poland)
Abstract
The effect of timing of the first cut on the rate of biomass increase, yields and yield components of red clover cultivars (diploid Nike and tetraploid Jubilatka) and meadow fescue cv. Westa, grown as pure stands or as mixtures was studied in the years 1993–1995 in Puławy. Under the trial conditions, it has been shown that with respect to the total annual yield of dry matter the optimum date of the first harvest of mixed and pure swards coincides with the beginning of flowering of red clover and meadow fescue (date 4). Mixed swards of red clover and meadow fescue out yielded red clover grown as pure stand regardless of first cut date and sward age. Yields of meadow fescue equalled those of the mixture. The mixtures showed superior performance with respect to dry matter yield from the first cut and leaf area index (LAI) especially in intitial growth stages (dates 1 and 2). There were no differences in productivity between the di- and tetraploid red clover cultivars, both in the monocultures and the mixed swards with meadow fescue.
Keywords:
biomass increase, clover-grass mixtures, meadow fescue, red clover, yield components, yieldReferences
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Authors
Halina Ścibioriung@iung.pulawy.pl
Zakład Uprawy Roślin Pastewnych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy Poland
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Copyright (c) 2003 Halina Ścibior
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