Incidence of the potassium/calcium plus magnesium ratio on the conifer fertigation for peat substrates

References

• Bower , C. A. and Wilcox , L. V. 1965 . “ Soluble salts ” . In Methods of Soil Analysis , Chemical and Microbiological Properties Edited by: Black , C. A. , Evans , D. D. , White , J. L. , Ensminger , L. E. and Clark , F. E. 933 – 951 . Madision, WI : American Society of Agronomy . Agronomy No. 9, Part 2
   Google Scholar
• Cadahia , C. , Eymar , E. and Hassan , I. 1990 . Fertirrigacion de coniferas en contenedores con diversos sustratos . Actas de Horticultura , 5 (2) : 431 – 436 .
   Google Scholar
• Cadahia , C. 1988 . Fertilizacion en riego por goteo de cultivos horticolas , 234 Madrid : ERT Fertilizantes .
   Google Scholar
• De Boodt , M. , Verdonck , O. and Cappaert , I. M. 1974 . Method for measuring the water release curve of organic substrates . Acta Hort. , 37 : 2054 – 2062 .
   Google Scholar
• Gonzalez Gascon , M. R. 1988 . Estudio de. los factores limitantes en el desarrollo de abetos blancos (Abies Alba Mill) crecidos sobre suelos extremadamente acidos , Espana : Facultad de Ciencias. Universidad Autonoma de Madrid . Tesis Doctoral
   Google Scholar
• Gonzalez , C. , Escobar , R. and Lachica , M. 1988 . Evolucion estacional de elementos nutritivos minerales en pino radiata . Agrochimica , 32 (1) : 63 – 72 .
   Google Scholar
• Hassan , I. 1992 . “ Optimizacion de disoluciones nutritivas para coniferas mediante hidroponia ” . In Aplieacion a la fertirrigacion en contenedores , Espana : Facultad de Ciencias. Universidad Autonoma de Madrid . Tesis Doctoral
   Google Scholar
• Hernando , V. and Cadahia , C. 1973 . El analisis de la savia como indice de fertilizacion Estudio comparativo con analisis foliar , Manuales de Ciencia Actual, 7 Madrid, , Espana : CSIC .
   Google Scholar
• Ingestad , T. 1979 . Mineral nutrient requirements of Pinus sylvestris and Picea abies seedlings . Physiol. Plant. , 45 : 373 – 380 .
   Web of Science ®Google Scholar
• Kazda , M. and Weilgony , P. 1988 . Seasonal dynamics of major cations in xylem sap and needles of Norway spruce (Picea abies L. Karst.) in stands with different soil solution chemistry . Plant and Soil , 110 : 91 – 100 .
   Web of Science ®Google Scholar
• Langerud , B. R. and Sandvik , M. 1991 . Nutrient concentrations in the liquid phase of growth substrates . Norwegian J. Agri. Sci. , 3 : 1 – 11 .
   Google Scholar
• Mengel , K. and Kirkby , E. A. 1987 . Principles of Plant Nutrition , Berne, , Switzerland : International Potash Institute .
   Google Scholar
• Morrison , I. K. 1974 . Mineral nutrition of conifers with special reference to nutrient status interpretation: A review of the literature , Ottawa, Ontario, , Canada : Department Environment Canada Forestry Research Service . Publication No. 1343
   Google Scholar
• Rehfuess , K. E. 1967 . Standort und Ernahrungszustand von Tannenbestanden (Abies alba Mill) in der Sudwestdeutschen . Schichtstufenlandschaft Forstw Cbl , 86 : 321 – 349 .
   Google Scholar
• Stienen , H. and Bauch , J. 1988 . Element content in tissues of spruce seedlings from hydroponic cultures simulating acidification and deacidification . Plant and Soil , 106 : 231 – 238 .
   Google Scholar
• Timmer , V. R. and Parton , W. J. 1984 . Optimum nutrient levels in a container growing medium determined by a saturated aqueous extract . Commun. Soil Sci. Plant Anal. , 15 (6) : 607 – 618 .
   Web of Science ®Google Scholar
• Van den Driessche , R. 1971 . Response of conifer seedlings to nitrate and ammonium sources of nitrogen . Plant and Soil , 34 : 421 – 439 .
   Web of Science ®Google Scholar
• Vernon , L. P. 1960 . Spectrophotometric determination of chlorophylls and pheophytins in plant extracts . Anal. Chem. , 32 : 1144 – 1150 .
   Web of Science ®Google Scholar
• Wilson , G. C. S. 1983 . The physico‐chemical and physical properties of horticultural substrates . Acta Hort. , 150 : 19 – 32 .
   Google Scholar