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Ten species of Umbelliferae were examined with regard to the time of year at which seedlings emerged and the survival of seeds in cultivated soil. The...
Read moreYields of heather herbage ranged from 3238 to 29, 261 kg DM/ha. The latter stand contained 39, 56, 17, 8 and 192 kg/ha of Ca, K, Mg, P and N, respecti...
Read moreCarduus nutans spp. nutans was introduced into Australia in 1950, since when it has spread into several agricultural areas. Models were developed to d...
Read moreThe influence of competition on ramet populations of C. esculentus was studied experimentally at a site near Harare, Zimbabwe. A range of ramet densit...
Read moreLichens are sensitive to pollution and have therefore been used as air quality indicators. While the distribution of lichens within cities may reflect...
Read moreAtmospheric nitrogen (N) deposition, climatic variables and anthropogenic management affect grassland-ecosystem stability by driving changes in plant ...
Read moreDamage to trees by grazing animals and prevention of damage by fencing or use of unpalatable species; effects of grazing on forest soils, including co...
Read moreA germination response study using mannitol was conducted in growth chambers. The highest rate of germination in Agropyron smithii (western wheatgrass...
Read morePeatlands are lands with a naturally accumulated peat layer at their surface. In their natural state, peatlands support a large range of habitats and ...
Read moreIn a survey of 68 reclaimed china clay wastes, the grass/clover vegetation was scored for overall cover, legume cover and the number of ingressed spp....
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