Toxic concentrations of iron and manganese in leaves of Phaseolus vulgaris L. growing on freely‐drained soils of pH 6.5 in Northern Tanzania

References

• Davies , B.E. and Jones , L.H.P. 1988 . “ Micronutrients and Toxic Elements ” . In Russell's Soil Conditions and Plant Growth. , 11th edn , Edited by: Wild , A. 780 – 814 . London : Longman .
   Google Scholar
• Dobereiner , J. 1966 . Manganese toxicity effects on nodulation and nitrogen fixation of beans (Phaseolus vulgaris L.) in acid soils . Plant Soil , 24 : 153 – 166 .
   Web of Science ®Google Scholar
• France , A. and Tay , J. 1987 . “Bronceado”; of beans, an abnormal condition of dry beans (Phaseolus vulgaris L.) , Bean Imp. Coop. Ann. Rep. 30 89 – 90 .
   Google Scholar
• Le Mare , P.H. 1977 . Experiments on effects of phosphorus on the manganese nutrition of plants. III. The effect of calcium:phosphorus ratio on manganese in cotton grown in Buganda soil . Plant Soil , 47 : 621 – 630 .
   Web of Science ®Google Scholar
• MAFF . 1986 . Chemical Analysis of Agricultural Materials , London : HMSO .
   Google Scholar
• Schwartz , H.F. , Galvez , G.E. , Schoonhoven , A. van , Howeler , R.H. , Graham , P.H. and Flor , C. 1978 . Field Problems of Beans in Latin America , Cali , Colombia : CIAT .
   Google Scholar
• Williams , E.V. 1978 . New techniques for the digestion of biological samples and their application to the determination of tin, iron, and lead in canned foods . J. Food Tech. , 13 : 367 – 384 .
   Web of Science ®Google Scholar
• Yamauchi , M. 1989 . Rice bronzing in Nigeria caused by nutrient imbalances and its control by potassium sulphate applications . Plant Soil , 117 : 275 – 286 .
   Web of Science ®Google Scholar
• Present Addresses: School of Agriculture, University of Aberdeen, Aberdeen, AB9 1UD, U.K.
   Google Scholar
• Biological Laboratory, University of Kent, Canterbury, CT2 7NJ, U.K.
   Google Scholar
• AFRC Institute for Arable Crops Research, Rothamsted Experimental Station, Harpenden, Herts., AL5 2JQ, U.K.
   Google Scholar
• Research and Training Division, Lyamungu Agricultural Research and Training Institute, Moshi, Tanzania
   Google Scholar
• Centro Internacional de Agricultura Tropical, Selian Agricultural Research Institute, P.O. Box 2704, Arusha, Tanzania.
   Google Scholar
• 5, Byemoor Avenue, Great Ayton, Cleveland, TS9 6JP, U.K.
   Google Scholar