REFERENCES
- FIFE , D. N. and NAMBIAR , E. K.S. 1982 . Accumulation and retranslocation of mineral nutrients in developing needles in relation to seasonal growth of young radiata pine trees . Annals of Botany , 59 ( 6 ) : 817 – 829 .
- MCGLENN , L. K. 1973 . Inorganic fertiliser trials on P. radiata and P. pinaster in the Western Cape , M.Sc. thesis Univ. of Stellenbosch .
- LAMBERT , M. J. The use of foliar analysis in fertiliser research . Proc. IUFRO symposium on site and productivity of fast growing plantations . April-May 1984 . pp. 269 – 291 .
- LAMBERT , M. J. 1984 . Personal communication to D.C. Grey
- LEAF , A. 1973 . “ Plant analysis as an aid in fertilising forests ” . In Soil Testing and Plant Analysis , Edited by: WALSH , L. M. and BEATON , J. D. 337 – 347 . Wisconsin, , USA : Madison .
- MACVICAR , C. N. 1977 . Soil classification. A binomial system for South Africa. Department of Agricultural Technical Services . Science Bulletin , 390
- MEAD , D. J. 1984 . “ Diagnosis of nutrient deficiencies in plantations. ” . In Nutrition of Plantation Forests. , Edited by: BOWEN , G. D. and NAMBIAR , E. K.S. 259 – 291 . London : Academic Press .
- MILLER , W. F. 1966 . Annual changes in foliar nutrient phosphorus and potassium levels of loblolly pine with site and weather factors . Plant and soil , 24 : 371 – 377 .
- NIELSEN , W. A. and CRANE , W. J. 1977 . Nutrition of radiata-pine in the Fingal plantations. Tasmanian Forestry Commission . Bulletin , 5 : 7 – 34 .
- SCHUTZ , C. J. 1976 . A review of fertiliser research on some of the more important conifers and eucalypts planted in subtropical and tropical countries with special reference to South Africa. S.A. Dept. of Forestry . Bulletin , 53 : 89
- VAN DEN BERG , J. Problems related to analysis of forest soil fertility . Proc. XVI IUFRO World Congress Div. 1 . pp. 148 – 163 .
- VAN DEN DRIESSCHE , R. 1974 . Prediction of mineral nutrient status of trees by foliar analysis . Botanical Review , 10 : 347 – 394 .