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Analysis of theoretical calculations and experimental measurements showed that the photosynthetically useful fraction of the solar spectrum for total ...
Read moreFields in southern England were sampled over seven years to assess populations of eggs and larvae of Hylemya (Leptohylemyia) coarctata (Fall.) and of ...
Read moreThe adult life-span and the factors affecting egg production in Pieris rapae (L.) (especially age, temperature and solar radiation) were investigated ...
Read moreSwards of perennial ryegrass and white clover were grown in controlled-environment cabinets in soil that was allowed to dry. The evaporation rate duri...
Read moreField measurements showed that Deroceras sp., a slug, could at times be a serious pest in pastures of T. semipilosum cv. Safari in SE Queensland. At p...
Read moreAn equation is given which gives valid estimates of wind profiles in crops of maize and Vicia faba where foliage distribution is reasonably uniform. R...
Read moreThe foraging range and constancy of two colonies of Bombus terrestris were investigated on a mixed arable farm in the UK using harmonic radar, which h...
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 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...
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