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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 moreSee also Abs. 804. A series of glasshouse, growth room and field experiments were designed to study interference between perennial ryegrass [Lolium pe...
Read moreIndigenous sorghum varieties in N. Nigeria yielded best in their own localities. All local varieties of a locality tended to flower at the same time e...
Read moreAn analysis of the arthropod pest complex on tea from 14 geographical locations showed that the numbers of pests depend on the length of time for whic...
Read moreRoots collected from 3 contrasting types of permanent grassland in the Pennines were consistently infected by vesicular-arbuscular (VA) mycorrhizal fu...
Read moreThis paper examines the effect of changes in government spending level and composition on deforestation and related carbon dioxide emissions. Our theo...
Read moreGoose (Anser anser and A. brachyrhynchus) grazing on autumn-sown barley was simulated in the field in NE Scotland by removal of 25, 50, 75 or 100% of ...
Read moreIn this paper, we examine the gender-specific effects of climate variability using household level data from rural Ethiopia. In particular, this paper...
Read moreInsect pollination and biological pest control simultaneously influence crop yield, but are often investigated individually. This can lead to under- o...
Read moreSingle species forest systems often suffer from low resistance and resilience to perturbations. Consequently, fostering tree species diversity is disc...
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