Summary
The effects of three levels of N (0, 50 and 100 ppm) and four salinity regimes (0.5, 1.5, 2.5 and 3.5 mmhos/cm) on the growth and mineral composition of dry beans (Phaseolus vulgaris L.) were investigated in a greenhouse experiment. Bean plants treated with N produced more dry weight and contained higher N than the untreated check. Growth and N uptake by bean plants generally decreased with increasing irrigation water salinity at all N levels. High salinity caused severe burning of the margins of older leaves and stunting of growth. At the low salinity levels (0.5 and 1.5 mmhos/cm), N additions had no effect on growth; however, the suppressing effects of higher salinity were alleviated somewhat with N fertilization.
The concentration and uptake of Cl and Na increased with increasing salinity; probably the relatively high accumulations of Cl and Na were responsible for growth reductions at high salinity.
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Sameni, A.M., Maftoun, M., Bassiri, A. et al. Growth and chemical composition of dry beans as affected by soil salinity and N fertilization. Plant Soil 54, 217–222 (1980). https://doi.org/10.1007/BF02181847
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DOI: https://doi.org/10.1007/BF02181847