The effect of fertilizer application and time of seasonal break on the growth and dominance of capeweed (Arctotheca calendula)

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Abstract
Pot and field experiments were carried out to study the effect of N and P addition and time of seasonal break on the growth and dominance of capeweed (Arctotheca calendula) in mixed swards. In a pot experiment time of break had a much greater effect on capeweed dominance than fertilizer treatment with a late break increasing capeweed content. N and P treatments did not alter botanical composition of a predominantly capeweed pasture. The results suggest that manipulation of fertilizer application will have only small and possibly variable effects on the dominance of capeweed in pastures.

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