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Long‐term effects of fertilizer on the botanical composition and soil seed population of a permanent grass sward
Author(s) -
WILLIAMS E. D.
Publication year - 1985
Publication title -
grass and forage science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 56
eISSN - 1365-2494
pISSN - 0142-5242
DOI - 10.1111/j.1365-2494.1985.tb01780.x
Subject(s) - holcus lanatus , poa pratensis , lolium perenne , poa annua , festuca rubra , agronomy , biology , agrostis , population , fertilizer , festuca pratensis , weed , poaceae , demography , sociology
Results are presented after 14 and 19 years of the botanical composition and seed bank of moderately fertilized or unfertilized grazed paddocks. Agrostis capillaris, Festuca rubra and broad‐leaved weeds contributed a larger proportion of the cover on unfertilized than on fertilized swards. In contrast Poa spp., Holcus lanatus, Alopecurus pratensis and Lolium perenne were relatively more abundant on the fertilized than on the unfertilized swards. A. capillaris was the most plentiful grass in the seed bank of the unfertilized swards but Poa spp. (especially P. annua) in that of the fertilized swards. Some of the relationships between the seed bank and vegetative cover are discussed and the possibility of further increasing the contribution of L. perenne highlighted.