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The distribution of T. repens and grasses was examined in 6 hill swards in mid-Wales sown 10-39 years before with seed mixtures containing T. repens a...Read more
The iodine content of the top 15 cm of 132 soils formed from a variety of parent materials within the UK ranged from 0.5 to 98.2 mu g g-1 on a dry wei...Read more
Results are presented from a study of 20 street trees (8 on the E. side of the street, 12 on the W. side, 9 Fraxinus pennsylvanica, 11 Tilia cordata) ...Read more
Climate and soil factors influencing the distribution of annual legume species collected at 207 sites throughout Syria were investigated by cluster an...Read more
Soils in which 4 grasses, 8 broadleaved species and 2 ferns had been grown individually for 16 yr were examined for p-hydroxybenzoic, vanillic, p-coum...Read more
In November 1970 the acidity of Calthorpe broad in Norfolk, and some adjacent ditches, changed abruptly from near-neutrality to just above pH 3. Most ...Read more
The effects of different grades of limestone, up to 2.4 mm diam., and incorporation depths of 15 and 25 cm, on growth of Lolium perenne cv. S23 was in...Read more
Roots collected from 3 contrasting types of permanent grassland in the Pennines were consistently infected by vesicular-arbuscular (VA) mycorrhizal fu...Read more
Populations of A. odoratum collected both from unlimed plots of the Park Grass experiment and from natural acid soils were more tolerant of high Al co...Read more