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Ecological studies identifying a positive relationship between biodiversity and ecosystem services motivate projections that higher plant diversity wi...
Read moreGrowth characteristics and response to atrazine were studied in atrazine resistant (R) and susceptible (S) populations of Amaranthus retroflexus and A...
Read moreIn 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 moreLeaf extension rates of perennial ryegrass, Italian ryegrass, tall fescue and timothy were measured in the field using artificial soil heating as a tr...
Read moreThe effects of temp. on seed dormancy and germination were studied in 11 populations of tetraploid F. pratensis var. apennina from the Italian Alps an...
Read moreSwards dominated by western wheatgrass (Agropyron smithii) at 2 sites in SE Montana were continuously fumigated with 2, 4 or 7 p.p.h.m. SO2 from mid-M...
Read moreThe effects of mechanical control methods and foliar sprays of fosamine ammonium, 2,4,5-T and triclopyr, singly or in combination, were assessed on Be...
Read moreThe results of the first 4 years of an experiment which has involved frequent applications of ammonium sulfate within a 1-km2 tract of nitrogen-poor d...
Read moreThe effects of applications of locust insecticides on birds were studied in the savannah of northern Senegal in 1989. The insecticides studied were fe...
Read moreEighteen biotypes collected from different sites were grown in a common environment and seeds from these biotypes were grown in four experiments in co...
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