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Agrostemma 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...
Read moreIn a study of net above-ground productivity of the economically important woody weed, S. punicea, in S. Africa, with and without the introduced monoph...
Read moreDistribution records of the flora within arable field boundaries and the associated crop indicated that most species in field boundaries did not occur...
Read morePlants of A. capillaris (outbreeding) and P. pratensis (apomictic) from populations in England (Rothamsted), southern Iceland (Sámsstadir), northern I...
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