 | OPENING ADDRESS (I. W.F.S. Duffhues, Dr. J. van Kampen) |
| EFFECT OF CALCIUM STRESS ON THE CALCIUM STATUS OF TOMATOES GROWN IN NFT (P. Adams, A.M. El-Gizawy) |
| CONTROL OF THE NITROGEN STATUS OF LETTUCE BY NITRATE ANALYSIS OF PLANT SAP (D. Alt, A.-M. Füll) |
| THE USE OF TRIAMIDE PHOSPHORYL (TAP) AS NP FERTILIZER FOR NITRATE LEVEL CONTROL IN LETTUCE, SPINACH AND TOMATO TRANSPLANTS (A. Beresniewicz, K. Dudek, O. Nowosielski) |
| EFFECT OF EC, AND CL AND NH4 CONCENTRATION OF NUTRIENT SOLUTIONS ON NITRATE ACCUMULATION IN LETTUCE (J. van der Boon, J.W. Steenhuizen, E. Steingröver) |
| A COMPUTERIZED PROGRAMME FOR FERTIGATION OF GLASSHOUSE CROPS (T. Breimer, C. Sonneveld, L. Spaans) |
| HEAVY METALS IN SOME VEGETABLE CROPS AS INFLUENCED BY MUNICIPAL WASTE COMPOSTS (D. Fritz, F. Venter) |
| THE EFFECT OF SLOW RELEASE FERTILIZERS ON THE YIELD AND FRUIT QUALITY OF VEGETABLE CROPS GROWING IN THE MEDITERRANEAN AREA OF TURKEY (O. Gezerel, F. Dönmez) |
| RESTRICTIONS IN VEGETATIVE GROWTH OF TOMATO PLANTS IMPOSED BY ALTERING THE NITROGEN CONCENTRATION AND THE ELECTRICAL CONDUCTIVITY OF THE NUTRIENT SOLUTION (A. Gosselin, J. Charbonneau, R. Larouche, L.-P. Vézina, M.-J. Trudel) |
| NITROGEN DYNAMICS IN VEGETABLE FIELDS IN SWITZERLAND (C. Gysi, K. Roth) |
| NON-GENETIC VARIATION IN NITRATE CONTENT OF RADISH (M. Nieuwhof, H.A. van Keulen, J.M. Hoogendijk) |
| GENOTYPICAL VARIATION IN NITRATE CONTENT OF RADISH ROOTS AND PROSPECTS FOR REDUCING NITRATE CONTENT BY BREEDING. (M. Nieuwhof, S. Giezen) |
| A BIOLOGICAL BASIS FOR THE EFFICIENCY OF PLANT PROTECTING FOLIAR FERTILIZERS IN VEGETABLE PRODUCTION (O. Nowosielski, W. Dziennik, T. Kotlinska, J. Narkiewicz-Jodko, J. Dobrzanska) |
| DISINFECTION OF SOILS WITH STEAM (P.A.C. Raats) |
| IMPROVING QUALITY OF LETTUCE BY BREEDING FOR LOW NITRATE CONTENT (K. Reinink) |
| UPTAKE OF CESIUM BY GLASSHOUSE VEGETABLE CROPS FROM SOIL AND NUTRIENT SOLUTIONS (J.P.N.L. Roorda van Eysinga, C.W. van Elderen) |
| THE IMPORTANCE OF FERTIGATION FOR THE IMPROVEMENT OF N-FERTILIZER USE EFFICIENCY IN LETTUCE CULTURE (J.H.G. Slangen, H.H.H. Titulaer, W. Glas) |
| INTERPRETATION OF ANALYTICAL DATA OF TISSUE TESTS (C. Sonneveld, S.S. de Bes) |
| THE GROWTH OF BEEFSTEAK TOMATO AS AFFECTED BY K/CA RATIOS IN THE NUTRIENT SOLUTION (W. Voogt) |
| SOME EFFECTS OF ROOT TEMPERATURE ON THE GROWTH AND CALCIUM STATUS OF TOMATOES (P. Adams) |
| NUTRIENT SOLUTIONS-SUBSTRATES (ROCKWOOL AND PEAT) INTERACTIONS IN DRIP-IRRIGATION WITH HIGHLY SALINE WATERS (C. Cadahía, A. Masaguer, A. Gárate, M.J. Sarro) |
| SOLUBILITY OF FE, MN, CU and ZN FERTILIZERS AS A FUNCTION OF THE SUBSTRATE TYPE IN A DRIP IRRIGATION SYSTEM (C. Cadahía, P. García, J.J. Lucena, M.J. Sarro, A. Gárate) |
| THE EFFECT OF PLANT POWER APPLICATIONS ON THE YIELD OF EARLY TOMATOES (O. Gezerel) |
| BROMINE AND BROMIDE IN SOILS, PARTICULARLY GLASSHOUSE SOILS (J.P.N.L. Roorda van Eysinga, A.L. van den Bos) |
| CADMIUM IN BUTTERHEAD LETTUCE VARIETIES (LACTUCA SATIVA L., VAR. CAPITATA L.) (J.P.N.L. Roorda van Eysinga, M.H. Cools) |
| EVALUATION OF PLANT NUTRITION STATUS BY FRESH INDEX PART OR SAP ANALYSIS (E. Szwonek) |
| THE EFFECTS OF FERTILIZER USE ON YIELD AND QUALITY OF VEGETABLE CROPS GROWN UNDER SHELTER (G.G. Vendilo) |
| EVALUATION OF A SIMPLE SAP NITRATE TEST FOR BLANCHING CELERY (APIUM GRAVEOLENS) (J. Vermeulen) |
