... London.[37] Mengel K. , Kirkby E.A., Principles of plant nutrition, InternationalPotash Institute Worblaufen, Bern, 1987.[38] Minotta G., Pinzauti S., Effects of light and soil fertility on growth,leaf ... increased sharply withincreasing plant P concentration at LP and IP, and the slope of the linear relationship between plant P concentration and RGR,i.e., phosphorus productivity, was highest ... (Eds.), Photosynthesis and production in a changing environment, a field and laboratory manual, Chapman and Hall, London, 1993, pp. 207–219.[20] Fredeen A.L., Rao I.M., Terry N. , Influence of phosphorus nutri-tion...