Abstract
Low temperature regimes and low levels of P limit crop production in hill-land acid soils of the Appalachian region. Experiment consisted of four legume species: Alfalfa, birdsfoot trefoil, red clover, and white clover. Experiment was conducted in a temperature root zone cabinet and maintained in climatically controlled growth rooms at three levels of soil temperature (10, 15, and 20°C) and two levels of P (37.5 and 225 mg kg-1).
Increasing soil T and P increased growth of legumes. High levels of P helped to overcome low root zone T. The P, Ca, and Mg utilizatioin efficiency ratio [ER = mg of dry shoot weight, mg-1 of element in shoot] were calculated. At low root zone T, increasing P increased ER for Ca and Mg and reduced ER for P. Increasing T from 10 to 20°C increased ER for Ca and Mg. Legume species respond differently to T and P levels. The method used here might be useful in evaluation of various legume species and cultivars/genotypes within species to low root zone T and P levels.
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© 1997 Kluwer Academic Publishers
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Baligar, V.C., Wright, R.J., Fageria, N.K. (1997). Differences in growth and nutrition of legumes in varying soil temperature and phosphorus. In: Ando, T., Fujita, K., Mae, T., Matsumoto, H., Mori, S., Sekiya, J. (eds) Plant Nutrition for Sustainable Food Production and Environment. Developments in Plant and Soil Sciences, vol 78. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0047-9_27
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DOI: https://doi.org/10.1007/978-94-009-0047-9_27
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