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The relationship between grazing intake, herbage availability and sward structure was investigated using grazing process models. The general model exp...Read more
A sward of perennial ryegrass cv. S23 grown during 1979-81 was treated on 20 April with 130 kg N/ha as ammonium nitrate doubly labelled with 15N, foll...Read more
Land degradation in non-equilibrium rangelands may be defined in terms of loss of resilience and is linked with lower economic productivity through r...Read more
Spoil N composition, DM yield, herbage N concentration and N yield were determined in Festuca rubra L. and Lolium perenne L. swards established on col...Read more
After 2 trials in late winter 1973-4, 6 main experiments were conducted over the winter periods of 1974-5 and 1975-6 to determine the loss of herbage ...Read more
In derived savanna, tree cover measured in various ways was not significantly related to the dry weight of the herbage layer before or after burning. ...Read more
Densities of upland geese and ruddy-headed geese were determined for a variety of 'natural' pastures in the Falkland Islands. Herbage consumption by g...Read more
The levels of blood urea, Ca, P, Na and K in the lechwe (Kobus leche kafuensis) blood sera were determined and compared with a standard. Blood urea wa...Read more
Quantities of C and N in the microbial biomass of soils receiving long term applications of pig and cow slurries were compared, and changes in soil pH...Read more
Measurements were made of growth and death in spring and autumn in a perennial ryegrass/white clover sward, and by integration of growth and death dat...Read more