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By means of factor analysis of concentrations of Cu and Zn in soil and of Cu, Zn, Fe and Mn in vegetation, the relationships between biogeochemistry, ...
Read moreExperiments were conducted in field cages in Queensland to assess the effects of adults and larvae of the curculionid Cyrtobagous salviniae on Salvini...
Read moreIt is necessary to improve knowledge exchange between scientists and decision-makers so that scientific evidence can be readily accessed to inform pol...
Read moreAgrostemma githago and spring wheat cv. Sicco were sown in monocultures and 1:1 mixtures at overall densities of 16, 40, 120, 400 and 1200 plants/m2 i...
Read moreSamples taken at Cedar Creek, Minnesota, showed that the above-ground parts of cattail [Typha angustifolia] and maize ecosystems contained much the sa...
Read moreAnalytical data (tabulated) show that A. indica has considerably improved the nutrient content and physical condition of the infertile acid sands on w...
Read moreA study was conducted during 1994-95 in Finland within a 1600 ha area containing patchy boreal spruce (Picea abies) and pine (Pinus sylvestris) mire h...
Read moreWheat cv. Concorde, Chenopodium album, Agropyron repens [Elymus repens] and Spergula arvensis were grown in pure stands and in mixtures of weeds with ...
Read moreThe demography of the annual grass weed A. sterilis subsp. ludoviciana was studied during 3 consecutive years on populations growing in winter wheat c...
Read moreBarley, Sinapis alba and Papaver rhoeas, and then barley, S. alba and Avena fatua were grown in pure stand and in mixtures of 2 and 3 species at diffe...
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