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The effect of nitrogen, plant density and competition between Bromus sterilis and three perennial grasses: The implications for boundary strip management



The effect of nitrogen, plant density and competition between Bromus sterilis and three perennial grasses: The implications for boundary strip management



Weed Research 35(5): 363-368



The competitive ability of Festuca rubra L., Holcus lanatus L. and Poa trivialis L. when grown from seed, in monoculture and in 1:1 additive mixtures with Bromus sterilis L. was studied. B. sterilis was more aggressive when grown in additive mixtures with F. rubra than P. trivialis or H. lanatus. H. lanatus was less dominated by B. sterilis at the second harvest; visual observations suggested that this dichotomy was due to its slower initial growth rate. and its subsequent dense vegetative growth habit. There was no statistically significant difference between the Relative Yield Total (RYT) of B. sterilis in additive mixtures with F. rubra, H. lanatus or P. trivialis, indicating that they were competing for the same resources. B. sterilis produced significantly more reproductive tillers and seeds as a result of nitrogen application, and such production was accentuated in the absence of interspecific competition. The implications of sown grass strips for field margin management are discussed.

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Accession: 009564854

Download citation: RISBibTeXText

DOI: 10.1111/j.1365-3180.1995.tb01631.x


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