| FOREWORD (Heiko H. Van der Borg) |
| STORAGE PROPERTIES OF PEAT BASED GROWING MEDIA CONTAINING WORM WORKED DUCK WASTE (D.P. Wilson, W.R. Carlile) |
| ESTIMATION OF PORE SPACE AND THE CALCULATION OF AIR VOLUME IN HORTICULTURAL SUBSTRATES (P.L. Waller, A.M. Harrison) |
| GUIDE VALUES FOR PHYSICAL PROPERTIES OF PEAT SUBSTRATES (G. Wever) |
| CLOSED BUSINESS SYSTEMS FOR LESS POLLUTION FROM GREENHOUSES (E.A. van Os, M.N.A. Ruijs, P.A. van Weel) |
| WASTE MATERIALS AS MEDIA FOR CONTAINER-GROWN PEACH AND OLIVE PLANTS. (M. Tattini, S. Caselli, R. Tafani, M.L. Traversi) |
| EFFECT OF INCREASING NUTRIENT SOLUTIONS ON GROWTH, BIOMASS PARTITIONING AND NUTRIENT UPTAKE OF CONTAINER-GROWN PEACH PLANTS. (M. Tattini, P. Bertoni, R. Tafani) |
| EFFECT OF HUMIC ACIDS ON GROWTH AND BIOMASS PARTITIONING OF CONTAINER-GROWN OLIVE PLANTS. (M. Tattini, P. Bertoni, A. Landi, M.L. Traversi) |
| EFFECTS OF CA-STRESS ON BLOSSOM-END ROT AND MG-DEFICIENCY IN ROCKWOOL GROWN TOMATO (C. Sonneveld, W. Voogt) |
| QUALITY CONTROL AND USE OF COMPOSTED ORGANIC WASTES AS COMPONENTS OF GROWING MEDIA IN THE FEDERAL REPUBLIC OF GERMANY (Gerald K. Schmilewski) |
| CHANGES IN TUFF DURING PROLONGED CULTIVATION WHICH AFFECTS ROSE PRODUCTIVITY. (M. Raviv, R. Reuveni, Sh. Medina, Y. Shamir, O. Duvdevani, Y. Shor, R. Schayer) |
| MELON CULTIVATION IN ORGANIC AND INORGANIC SUBSTRATES (R.M. Raja Harun, D.A. Hall, R.A.K. Szmidt, G.M. Hitchon) |
| SEDGE PEAT MIXED WITH ROCKWOOL AND SPHAGNUM PEAT AS GROWTH MEDIUM FOR POT PLANTS (J.B. Nørgaard) |
| FRUIT QUALITY OF STRAWBERRIES GROWN ON SUBSTRATES (P. Lieten, P. Dirinck) |
| COMPOST-BASED MEDIA AS ALTERNATIVE TO PEAT ON TEN POT ORNAMENTALS (D. Lamanna, M. Castelnuovo, G. D'Angelo) |
| ASSESSMENT OF AVAILABLE NUTRIENTS IN POTTING MEDIA USING DILUTE DTPA EXTRACTANTS (K.A. HANDRECK) |
| AIR HUMIDITY AND NUTRIENT CONCENTRATION AFFECT NUTRIENT UPTAKE AND GROWTH OF SOME GREENHOUSE PLANTS (Hans R. Gislerød, Leiv M. Mortensen) |
| REFERENCE METHOD FOR PHYSICAL AND CHEMICAL CHARACTERIZATION OF GROWING MEDIA : AN INTERNATIONAL COMPARATIVE STUDY (R. Gabriëls, W. Van Keirsbulck, O. Verdonck) |
| INFLUENCE OF NATURE AND PHYSICO-CHEMICAL PROPERTIES OF SUBSTRATES ON THE BACTERIZATION WITH PSEUDOMONAS FLUORESCENS (B. DIGAT, F. LEMAIRE) |
| THE USE OF BOTTOM-ASH COAL-CINDER AMENDED WITH COMPOST AS A CONTAINER MEDIUM IN HORTICULTURE (Y. Chen, A. Gottesman, T. Aviad, Y. Inbar) |
| PHYSICAL PARAMETERS IN COMMERCIAL SUBSTRATES AND THEIR RELATIONSHIPS (C. Cattivello) |
| MICROBIAL ACTIVITY IN GROWING MEDIA - A BRIEF REVIEW (W.R. Carlile, D.P. Wilson) |
| PHYSICAL PROPERTIES OF SUBSTRATE MIXTURES ACCORDING TO THE CHARACTERISTICS OF THE ORIGINAL MATERIALS (S. Burés, F.X. Martinez, N. Perez) |
| THE RELATIONSHIP OF OXYGEN DIFFUSION RATE TO THE AIR-FILLED POROSITY OF POTTING SUBSTRATES (A.C. Bunt) |
| MELON ON A FEW ECOLOGICALLY SOUND SUBSTRATES (F. Benoit, N. Ceustermans) |
| EFFECTS OF OXYGEN DEFICIENCY ON SPRAY CARNATION (DIANTHUS CARYOPHYLLUS) GROWN IN ARTIFICIAL SUBSTRATES. (R. Baas) |
| EXPERIMENTAL AND THEORETICAL AIR/WATER RATIOS OF DIFFERENT SUBSTRATE MIXTURES AT CONTAINER CAPACITY (F.X. Martínez, S. Burés, F. Blanca, M.P. Yuste, J. Valero) |
| PHYSICAL AND CHEMICAL CHARACTERIZATION OF PLANT SUBSTRATES: TOWARDS A EUROPEAN STANDARDIZATION (D. Ir. R. Gabriëls, D. Ir. O. Verdonck) |
| EFFECTS OF SOLUBE SALTS AND FERTILIZERS ON WATER STORAGE BY GELFORMING SOIL CONDITIONERS (J.M. Woodhouse, M.S. Johnson) |
| THE USE OF CARBONIZED RICE HULLES AS AN HORTICULTURAL SUBSTRATE (A.N. Kämpf, M. Jung) |
| FERTILIZATION AND WATER SUPPLY GROWING ICELAND POPPY (PAPAVER NUDICAULE L.) (L. Martinetti) |
| EFFECT OF FERTILISER NITROGEN AND POTASSIUM UPON YIELD AND QUALITY OF CARNATIONS GROWN IN PEAT AND SAWDUST (J.R. Starck, K. Lukaszuk, M. Maciejewski) |
| EFFECTS OF NO3, SO4 AND CI RATIOS ON TOMATOES GROWN IN RECIRCULATING SYSTEM (A. Nukaya, W. Voogt, C. Sonneveld) |