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A population of 570 adult beetles (Cyrtobagous sp.) released onto plants of Salvinia molesta in field cages declined to 40 adults over 7 months, and i...
Read moreThe soil seed bank and seedling recruitment of the weed vegetation were monitored over 9 years at two fixed plots (a shallowly ploughed plot and a dee...
Read moreDespite the increase in organic cropland, knowledge on the impact of organic farming on soil derived nitrous oxide (N2O) and methane (CH4) emissions i...
Read moreVarietal growth characteristics affect yield and the ability of cotton plants to avoid and/or compensate for herbivore damage, in particular by the cu...
Read moreA population dynamics model of the field biology of the curculionid Anthonomus grandis under Brazilian conditions was linked to a model for cotton gro...
Read moreWild oats (Avena spp.) were probably introduced into Western Australia from Tasmania c. 1830. Avena fatua and A. barbata now occur throughout the temp...
Read moreTrends in heather cover, ht. and standing crop were observed at 32 sites during 1969-72. Significant trends in heather cover and biomass occurred at m...
Read moreA hay crop was cut at three different dates in 1990 from a mesotrophic (meadow) grassland in Upper Teesdale, under various fertilizer, grazing and cut...
Read moreBoth species responded to increasing density by extreme plasticity and there was no density-induced mortality even at 3200 plants/m2. In wheat the pla...
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