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A simple mathematical model is presented describing the effects of N and light on the vegetative growth of grass/legume swards, consisting of a set of...Read more
Fields in southern England were sampled over seven years to assess populations of eggs and larvae of Hylemya (Leptohylemyia) coarctata (Fall.) and of ...Read more
Agricultural and invasive weeds are major threats to managed and natural ecosystems, costing billions of dollars annually. Models for arable and invas...Read more
An 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 more
Land degradation drivers, including loss in vegetation and eutrophication, are expected to impact soil biodiversity and functions in drylands world-wi...Read more
Senescence and death of plant parts are frequently accelerated by various stresses to which plants are subjected. The dynamics of these responses can ...Read more
Data are given on the above-ground biomass of trees, ground flora and litter for a series of young P. radiata plantations 3, 5, 7, 9 and 12 years old ...Read more
Data for 19 years from a commercial coconut estate of 800 acres have been used to derive a regression equation relating yield in a particular crop yea...Read more
Water movement in response to gradients of water potential in the soil-plant-atmosphere catena is considered. An approximate solution is presented of ...Read more
Expressions are presented for the penetration of direct and diffuse radiation into stands having (a) horizontal leaves, (b) randomly oriented leaves, ...Read more