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Observations on two burning regimes during a 3-year period in Machakos district (5200 ft. alt., rainfall 25 in./year) showed that these thickets can b...
Read moreRiver regulation and exotic plant invasion threaten riverine ecosystems, and the two often co-occur. By altering water regimes, flow regulation can fa...
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 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 moreWeed communities sampled at 78 sites on farmland in the upper Belize Valley, British Honduras, showed 148 different weeds present, of which 103 were i...
Read moreA statistical model is presented which explores the effects of weed patchiness on crop yield. Input data are a non-linear regression of yield versus w...
Read moreAgricultural intensification can cause a huge increase in productivity. However, associated costs in terms of reduced, self-regulation and increased r...
Read more1. Weed control is important for ensuring the rapid and successful establishment of trees in woodland creation projects. Over recent decades, herbicid...
Read moreA 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 moreBiological control is a key ecosystem service in arable lands, but its effectiveness varies according to environmental and biotic contexts. Cascading ...
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