Effects of bracken litter and frond canopy on emergence and survival of ryegrass and white clover seedlings

H. C. Lee, J. A. Cooke

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Two field experiments, at Woolly Hills Farm, County Durham, UK, and a glasshouse experiment were carried out in 1977. Early in the growing season (May-July), a covering of bracken litter increased the number of ryegrass and clover seedlings which became established both in an area where bracken had been removed and where there were developing fronds. In a second experiment (August-October), bracken litter had no effect on seedling establishment in the open. Under the frond canopy, the absence of litter was beneficial to clover establishment. The frond canopy reduced the number of ryegrass seedlings by half compared with the numbers in the open. In the glasshouse, litter caused a small reduction in the numbers of ryegrass and clover seedlings becoming established. The results suggest that litter may be either beneficial because of the prevention of desiccation in dry periods or detrimental, perhaps through allelopathic effects or shading. In terms of the successful establishment of a sown grass and clover sward, it would seem that litter removal by incorporation or burning is more justified in upland hill pastures because of the need to improve soil fertility than because of adverse effects of the litter itself.

Original languageEnglish
Pages (from-to)397-400
Number of pages4
JournalThe Journal of Agricultural Science
Volume113
Issue number3
DOIs
Publication statusPublished - 1989

Fingerprint

Medicago
Lolium
fronds
Trifolium repens
Seedlings
canopy
seedlings
greenhouses
Desiccation
sward
Poaceae
Fertility
soil fertility
shade
highlands
Soil
adverse effects
growing season
pastures
grasses

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Animal Science and Zoology
  • Genetics
  • Agricultural and Biological Sciences (miscellaneous)

Cite this

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abstract = "Two field experiments, at Woolly Hills Farm, County Durham, UK, and a glasshouse experiment were carried out in 1977. Early in the growing season (May-July), a covering of bracken litter increased the number of ryegrass and clover seedlings which became established both in an area where bracken had been removed and where there were developing fronds. In a second experiment (August-October), bracken litter had no effect on seedling establishment in the open. Under the frond canopy, the absence of litter was beneficial to clover establishment. The frond canopy reduced the number of ryegrass seedlings by half compared with the numbers in the open. In the glasshouse, litter caused a small reduction in the numbers of ryegrass and clover seedlings becoming established. The results suggest that litter may be either beneficial because of the prevention of desiccation in dry periods or detrimental, perhaps through allelopathic effects or shading. In terms of the successful establishment of a sown grass and clover sward, it would seem that litter removal by incorporation or burning is more justified in upland hill pastures because of the need to improve soil fertility than because of adverse effects of the litter itself.",
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Effects of bracken litter and frond canopy on emergence and survival of ryegrass and white clover seedlings. / Lee, H. C.; Cooke, J. A.

In: The Journal of Agricultural Science, Vol. 113, No. 3, 1989, p. 397-400.

Research output: Contribution to journalArticle

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