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A mathematical model of the dynamics of a virus disease in a perennial plant population was developed. The population was divided into healthy, latent...
Read moreDescribes a method of evaluating profile measurements above a vegetation cover in order to calculate its energy balance. The equations given by the ae...
Read moreA method of estimating root efficiency or specific absorption rate, A, in terms of the amount of mineral nutrient taken up per unit root per unit time...
Read moreCarabids are important biological control agents of weeds and other pests in agricultural fields. The carabid community is built upon direct and indir...
Read moreA simplified method for the estimation of the intrinsic rate of natural increase (rm) of aphids is proposed. Having determined the prereproductive tim...
Read moreSpacing treatments were created in stands of Sitka spruce (Picea sitchensis) near Edinburgh, Scotland, 3 yr after establishment, by thinning out the e...
Read moreReinfection of healthy replanted cocoa by cacao swollen shoot badnavirus, was modelled. Much of the spread of disease in pandemically diseased areas s...
Read moreDeterministic disease/host models based on differential equations, with and without age-structure, are used to aid understanding of the epidemiology o...
Read moreModified versions of the classic disease/host differential equation models were applied to rates of harvesting, sterilization and vaccination required...
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...
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