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Articles

REFERENCE STANDARD MATERIALS FOR THE DETERMINATION OF PHYSICAL CHARACTERISTICS OF GROWING MEDIA

Article number

401_68

Pages

559 – 560

Language

Abstract

The ISHS-Working Group on Standardization of Analytical Methods and Evaluation of the Results (Commission for Plant Substrates) has been involved in ring tests and studies for physical and chemical characterization of plant substrates, soil improvers and their basic ingredients (peat, bark, perlite, rock wool and various other kinds of organic and inert materials). From this the need arose to have plant substrate reference samples at our disposal, mainly for laboratory quality control and for calibrating measurements under routine conditions.

In this paper, the physical characteristics of 3 reference materials are described in response to a need to help all laboratories to improve their analytical performance.

Publication

International Symposium on Growing Media & Plant Nutrition in Horticulture

Authors

O. Verdonck, R. Gabriëls, W. Keirsbulck

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1995.401.68

Online Articles (70)

2. MEASURING MECHANICAL PROPERTIES OF GROWING MEDIA AND THE INFLUENCE OF CUCUMBER CULTIVATION ON THESE PROPERTIES

G. Wever | A.A. van Leeuwen

3. COMPUTER SIMULATION TO UNDERSTAND PHYSICAL PROPERTIES OF SUBSTRATES

S. Burés | Alan M. Ferrenberg | F. A. Pokorny | David P. Landau

4. A METHOD FOR EVALUATION OF AIR VOLUMES IN SUBSTRATES

V. Terés | V. Arrieta | M. Rozas

5. CALIBRATION OF TIME DOMAIN REFLECTOMETRY WATER CONTENT MEASUREMENTS IN GROWING MEDIA

J.A. Kipp | R.C. Kaarsemaker

6. A RAPID METHOD FOR THE DETERMINATION OF CHEMICAL PROPERTIES OF GROWING MEDIA

R. Gabriëls | W. Keirsbulck | H. Engels

7. EXTRACTION METHODS FOR CHEMICAL QUALITY CONTROL OF MINERAL SUBSTRATES

C. de Kreij | C.W. van Elderen | E. Meinken | P. Fischer

8. HYDRAULIC PROPERTIES OF ROCKWOOL SLABS USED AS SUBSTRATES IN HORTICULTURE

F.F. da Silva | R. Wallach | Y. Chen

9. PHYSICAL PROPERTIES OF DOUBLE-PROCESSED PINE BARK: EFFECTS ON ROOTING

T.E. Bilderback | M.R. Lorscheider

10. CHEMICAL AND PHYSICAL CHARACTERISTICS OF PUMICE AS A GROWING MEDIUM

G.A. Boertje

11. THE STORAGE PROPERTIES OF WOOD-BASED PEAT-FREE GROWING MEDIA

K. Dickinson | W.R. Carlile

12. THE USE OF CLAY IN ORGANIC SUBSTRATES FOR POT PLANTS

L.M. Rivière | N. Coulomb | P. Morel

13. METHOD FOR MEASURING AIR SPACE AND MOISTURE CONTENT AT DIFFERENT POT DEPTHS

G. Kritz | T. Khaled

14. EXPANDED CLAY AS A GROWING MEDIUM-COMPARISON OF DIFFERENT PRODUCTS

P. Fischer | E. Meinken

15. SPLIT-ROOT NUTRITION OF SWEETPOTATO IN HYDROPONIC SYSTEMS

16. PUMICE AS ENVIRONMENT-FRIENDLY SUBSTRATE – A COMPARISON WITH ROCKWOOL

B. Gunnlaugsson | S. Adalsteinsson

17. WATER STATUS OF GRADED PERLITES

R. Orozco | O. Marfa | S. Burés

18. QUALITY CONTROL OF SUBSTRATES IN THE NETHERLANDS

W.L. van Schie

19. A COMPARISON OF PEAT AND PINE BARK AS A MEDIUM FOR BEDDING PLANT PACK PRODUCTION

S.D. Ansermino | D.M. Holcroft | J.B. Levin

20. CULTURE OF HARDY WOODY ORNAMENTALS IN PURE-MINERAL CONTAINER SUBSTRATES

C.A. Smith | P. MacDonald | A.M. Sword

21. EFFECTS OF CONTAINER SIZE AND GROWING MEDIA ON THE GROWTH OF LANDSCAPE ORNAMENTAL PLANTS

M. Rozas | V. Terés | V. Arrieta

22. EVALUATION OF PINE BARK AS A SUBSTRATE FOR ANTHURIUM PRODUCTION IN SOUTH AFRICA

D.M. Holcroft | M.D. Laing

23. HYDROPONIC SYSTEM FOR THE PRODUCTION OF ALL YEAR ROUND CHRYSANTHEMUMS

D.P. Wilson | A.R. Finlay

24. EBB AND FLOW CULTIVATION OF CHRYSANTHEMUM CUTTINGS IN DIFFERENT GROWING MEDIA

F. Buwalda | R. Frenck | B. Löbker | B. van den Berg-De Vos | K.S. Kim

25. AN EVALUATION OF POLYURETHANE FOAM AS A REUSABLE SUBSTRATE FOR HYDROPONIC CUCUMBER PRODUCTION

M. Hardgrave

26. EVALUATION OF ORGANIC, SYNTHETIC AND MINERAL SUBSTRATES FOR HYDROPONICALLY GROWN CUCUMBER

M. Böhme

27. DEVELOPMENT OF ORGANIC SUBSTRATES FOR HYDROPONIC CUCUMBER PRODUCTION

M. Hardgrave | M. Harriman

28. COMPARISON OF SUBSTRATES, INCLUDING FRACTIONED PEAT, FOR THE PRODUCTION OF GREENHOUSE CUCUMBERS

M.J. Maher | M. Prasad

29. NON SATURATED HYDRAULIC CONDUCTIVITY OF PERLITES: SOME EFFECTS ON PEPPER

O. Marfà | R. Orozco

30. EVALUATION OF COMPOSTED PINE BARK AND CAROB PODS AS COMPONENTS FOR HORTICULTURAL SUBSTRATES

M. Reis | M. Soliva | X. Martinez Farré

31. USE OF SUBSTRATES WITH ZEOLITES FOR SEEDLING VEGETABLES AND POT PLANT PRODUCTION

C. Cattivello

32. SUBSTRATE STUDIES ON PEANUT USING HYDROPONIC CULTURE

E.S. Lim

33. MUSKMELON CULTIVATION ON SUBSTRATES

M. Schiavi | A. Venezia | D. Casarotti | G. Martignon

34. ALCOHOL DEHYDROGENASE INDICATING OXYGEN DEFICIENCY IN CHRYSANTHEMUM GROWN IN MINERAL MEDIA

R. Baas | M.G. Warmenhoven

35. APPLICATION OF MIXTURE-THEORY FOR THE OPTIMISATION OF THE COMPOSITION OF THE NUTRIENT SOLUTION

G. de Rijck | E. Schrevens

36. THE PRODUCTION OF STANDARD CARNATIONS ON NUTRIENT-LOADED ZEOLITE

P.F. Challinor | J.M. Le Pivert | M.P. Fuller

37. YIELD AND WATER USE EFFICIENCY OF SWEET CORN GROWN IN SOLUTION CULTURE AS AFFECTED BY KNO₃ AND SALINITY LEVELS

P. Imas | A. Feigin

38. NITROGEN DRAW-DOWN INDEX (NDI) TESTS USED WITH VARIOUS PEAT ALTERNATIVES IN RELATION TO PLANT GROWTH OBSERVATIONS

N.C. Bragg | G.M. Whiteley

39. THE EFFECT OF REDUCED NITRATE INPUT ON TOMATO YIELD AND FRUIT QUALITY

D.J. Hand | M. Fussell

40. EFFECT OF THE pH ON ROCKWOOL GROWN CARNATION (DIANTHUS CARYOPHYLLUS)

W. Voogt

41. PHOSPHORUS FERTIGATION AND GROWTH SUBSTRATE EFFECTS ON DRY MATTER PRODUCTION AND NUTRIENT CONTENTS IN GREENHOUSE TOMATOES

B. Bar-Yosef | P. Imas

42. THE USE OF COMBINED NUTRIENT SYSTEMS TO CONTROL NUTRIENT LOSSES

A. van Peer

43. NUTRIENT UPTAKE BY TOMATOES GROWN IN HYDROPONICS

Ulla E. Gertsson

44. DIFFERENTIAL EFFECTS OF SALINITY AND HUMIDITY ON GROWTH AND CA STATUS OF TOMATO AND CUCUMBER GROWN IN HYDROPONIC CULTURE

P. Adams | L.C. Ho

45. MONITORING AND CONTROL OF WATER AND FERTILIZER DISTRIBUTION IN GREENHOUSES

Th.H. Gieling | J. Bontsema | A.W.J. van Antwerpen | L.J.S. Lukasse

46. DIAGNOSIS AND INTERPRETATION BASED ON PLANT ANALYSIS OF CUPRESSUS GLABRA. USEFULNESS OF DIAGNOSIS AND RECOMMENDATION INTEGRATED SYSTEM (DRIS)

E. Eymar | C. Cadahía | A. Sánchez | I. Hassan

47. EFFECT OF NH₄-N LEVEL IN THE NUTRIENT SOLUTION ON THE INCIDENCE OF BLOSSOM-END ROT AND GOLD SPECKS ON TOMATO FRUIT GROWN IN ROCKWOOL

A. Nukaya | K. Goto | H. Jang | A. Kano | K. Ohkawa

48. MONITORING THE NUTRITION OF CLEMATIS USING PLANT SAP ANALYSIS

D.L. Le Marchant-Smith | C.N. Ozanne

49. CHRYSANTHEMUM CULTIVATION IN A SOILLESS EBB/FLOW SYSTEM: INTERACTION OF NaCl, MINERAL NUTRITION AND IRRIGATION FREQUENCY

M.G. Warmenhoven | R. Baas

50. OPTIMISATION OF THE NUTRIENT SOLUTION FOR EUSTOMA GRANDIFLORUM IN SOILLESS CULTURE

M.C. van Labeke | P. Dambre | E. Schrevens | G. de Rijck

51. EFFECT OF DIFFERENT FORMS OF NITROGEN ON THE QUALITY OF LETTUCE YIELD

W. Sady | S. Rozek | J. Myczkowski

52. INFLUENCE OF PREPLANT FERTILIZER ON STRAWBERRY YIELDS AND NUTRIENT LEACHING FROM A PEAT SUBSTRATE

F. Lieten

53. RECIRCULATION OF ROSE DRAINAGE WATER UNDER SEMI-ARID CONDITIONS

M. Raviv | R. Reuveni | A. Krasnovsky | Sh. Medina

54. PEAT SUBSTRATE AND SELF-REGULATING IRRIGATION – AN ENVIRONMENTALLY SOUND METHOD

J.A. Saarinen | O. Reinikainen

55. LEACHING OF NUTRIENTS AND YIELD OF TOMATO IN PEAT AND ROCKWOOL WITH OPEN AND CLOSED SYSTEM

K.R. Uronen

56. MANAGEMENT OF FERTILIZATION FOR CONTAINER CROPS BY MEANS OF INDUCED PERCOLATE ANALYSIS

F. Lemaire | V. Guérin | S. Charpentier

57. CONCEPTS AND METHODOLOGY FOR FERTILIZER USE ECONOMY IN GREENHOUSE TOMATO PRODUCTION, IN CANADA

A.P. Papadopoulos | S. Khosla

58. COMPOSTED VEGETABLE, FRUIT AND GARDEN WASTE AS A SUBSTITUTE FOR PEAT IN CONTAINER-GROWN NURSERY STOCK

A.A. Pronk

59. MANAGEMENT OF MINERAL ELEMENTS OF ROSES GROWN IN CLOSED ROCKWOOL SYSTEMS

C.M.J. Bloemhard | J. van Moolenbroek

60. POSSIBILITIES OF WATER CONTENT MEASUREMENT, IN COMBINATION WITH SUBSTRATE PROPERTIES AND DRAINING SYSTEM

J.F. de Groot

61. DYNAMICS OF WATER AND NUTRIENTS IN CLOSED, RECIRCULATING SAND BED SYSTEMS: MODELING WATER FLOW, NUTRIENT TRANSPORT, ROOT WATER AND NUTRIENT UPTAKE

M. Heinen | P. de Willigen

62. PRACTICE MEETS RESEARCH

J. John van Gemert | C.J.M. Kees Vernooy

63. WATER BALANCE OF LETTUCE GROWN ON SAND BEDS

M. Heinen | J. van Moolenbroek

64. OPTIMIZING TOMATO PRODUCTION ON STONEWOOL SUBSTRATES WITH A WATER CONTENT STRATEGY

A.W. Knop | M. Ouwerling

65. ROOT ENVIRONMENT WATER POTENTIAL AND TOMATO FRUIT GROWTH

P.A.C.M. van de Sanden | J.J. Uittien

66. RESPONSE OF PEAT- AND COMPOST-BASED SUBSTRATES TO DIFFERENT LEVELS OF IRRIGATION AND FERTILIZATION IN CYCLAMEN

G. D'Angelo | M. Pusterla | M. Castelnuovo

67. INFLUENCE OF MOISTURE DEFICIT LEAF-AIR AND CULTURAL PRACTICES ON TRANSPIRATION OF GLASSHOUSE ROSES

R. de Graaf

68. STANDARDIZATION OF GROWING MEDIA ANALYSIS AND EVALUATION : CEN/ISO/ISHS

R. Gabriëls

69. REFERENCE STANDARD MATERIALS FOR THE DETERMINATION OF PHYSICAL CHARACTERISTICS OF GROWING MEDIA

O. Verdonck | R. Gabriëls | W. Keirsbulck

70. PHYSICAL ANALYSIS OF PEAT AND PEAT-BASED GROWING MEDIA

G. Wever