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Articles

THE USE ON AMMONIUM – N FOR CONTROLLING PH AND IRON AVAILABILITY IN RECIRCULATING NUTRIENT SOLUTIONS

Article number

150_42

Pages

397 – 404

Language

Abstract

Ferrous sulphate was added at weekly intervals to supply 3 mg/l Fe to recirculating nutrient solutions containing ammonium-N at 0,6 and 12% of the total nitrogen in solution.

Lettuce grown with no ammonium-N in solution soon developed chlorosis of the youngest leaves typical of iron deficiency, and growth was severely restricted.
The symptoms spread eventually to the 6% treatment but the 12% treatment remained virtually free of any chlorosis.
Average fresh weight per lettuce was 182, 230 and 264 g in the 0,6 and 12% treatments respectively.

The ‘active’ iron contents in the leaf were assessed by the method of Katyal and Sharma.

Ammonium-N increased the ‘active’ iron in all leaves and not just the youngest leaves.

Publication

International Symposium on Substrates in Horticulture other than Soils In Situ

Authors

Edward W. Johnson, P. Moore

Keywords

Full text

https://doi.org/10.17660/ActaHortic.1984.150.42

Online Articles (64)

1. THE PHYSICO-CHEMICAL AND PHYSICAL PROPERTIES OF HORTICULTURAL SUBSTRATES

G.C.S. Wilson

2. ANALYTICS OF SUBSTRATES AND PROBLEMS BY TRANSMITTING THE RESULTS INTO HORTICULTURAL PRACTICE

J. Günther

3. ANALYTICAL ANALYSES OF PERLITE SUBSTRATES

G. C.S. Wilson

4. PHYSICAL LABORATORY ANALYSES OF POTTING COMPOSTS.

G.A. Boertje

5. EVALUATION OF GROWING MEDIA FOR CONSUMER USE

P.L. Waller | F.N. Wilson

6. NITROGEN CONTENT AND N-MINERALIZATION OF SEWAGE SLUDGES AS SUBSTRATES COMPONENT

M.A. Garau | M.T. Felipó | J. Cardús

7. RAPID BIOASSAY TO CONTROL MATURITY IN PINE BARK COMPOST

J. Jorba | M.I. Trillas

8. MICROBIAL ACTIVITY IN BLOCKING COMPOSTS. 1. MEASUREMENT OF CO₂ EVOLUTION AND O₂ CONSUMPTION

C.P. Turner | W.R. Carlile

9. MICROBIAL ACTIVITY IN BLOCKING COMPOST. 2. MEASUREMENT OF ATP CONCENTRATIONS.

C.P. Turner | W.R. Carlile

10. MICROBIAL ACTIVITY IN BLOCKING COMPOSTS. 3. DEGRADATION OF UREAFORMALDEHYDE.

C.P. Turner | W.R. Carlile

11. THE USE OF SUPPRESSIVE SOILS AS SUBSTRATE FOR ORNAMENTAL AND FLOWERING PLANTS (*)

A. Garibaldi

12. SUPPRESSIVE EFFECTS OF CERTAIN SOILS AND SUBSTRATES AGAINST FUSARIUM WILT OF CARNATION.

V. Cebolla | J. Pera

13. ATTEMPTS TO CONTROL FUSARIUM WILT OF CARNATION BY THE USE OF SUPPRESSIVE SOILS (*)

A. Garibaldi

14. INFLUENCE OF SUBSTRATUM TYPE AND FUNGICIDAL TREATMENT ON THE DEVELOPMENT OF FUSARIUM WILT OF CARNATION

Leszek B. Orlikowski

15. PHYSICAL PROPERTIES OF MIXTURES OF PEATS AND MINERALS OF DIFFERENT PARTICLE SIZE AND BULK DENSITY FOR POTTING SUBSTRATES

A.C. Bunt

16. THE PHYSICAL PROPERTIES OF DIFFERENT HORTICULTURAL SUBSTRATES

O. Verdonck | R. Penninck | M. De Boodt

17. WATER RETENTION CHARACTERISTICS OF SOME SUBSTRATES USED IN TURKEY

I. Ünver | Y. Ataman | N. Munsuz

18. SOME PHYSICAL AND CHEMICAL PROPERTIES OF VOLCANIC TUFF FROM OLOT (GIRONA, SPAIN)

J. Bech | N. Abelló | L. Longan | J. Andrés

19. NITROGEN DYNAMICS IN BARK COMPOST AS DEPENDENT ON PRODUCTION METHODS – I. MODEL TRIALS

R. Gutser | K. Teicher | P. Fischer

20. NITROGEN DYNAMICS IN BARK COMPOSTS AS DEPENDENT ON PRODUCTION METHODS – II. POT TRIALS WITH RYEGRASS AND SPRAY CARNATIONS

K. Teicher | R. Gutser | P. Fischer

21. NITROGEN BALANCE IN BARK COMPOSTS USED AS GROWING MEDIA

A.R. Selmer-Olsen | M.D. Sant | H.R. Gislerød | K. Solbraa

22. INFLUENCE OF CACO₃ ADDED TO THE SUBSTRATE ON THE NITROGEN NUTRITION OF PELARGONIUM HORTORUM MOTHER PLANTS

F. LEMAIRE | A. DARTIGUES

23. SUBSTRATES WITH SLOW RELEASE NITROGEN AND POTASSIUM ORGANIC FERTILIZERS

O. Nowosielski | H. Struszczyk | A. Beresniewicz

24. LEACHING OF NUTRIENTS FROM CONTAINERS WITH NURSERY PLANTS

J. van der Boon | H. Niers

25. PROBLEMS IN THE PRODUCTION OF ORNAMENTAL PLANTS IN “EL MARESME” AREA

J.F. Aguilà

26. RESPONSE OF POTHOS IN TEN GREENHOUSE MEDIA

A. Agut

27. AGRONOMIC EVALUATION OF PELARGONIUM ZONALE AND CINERARIA HYBRID WITH DIFFERENT SUBSTRATES IN COLD GREENHOUSE.

A. Vallejo | M. Pallares | A. Gonzalez | J. Gomà

28. PINE BARK AS SUBSTRATE FOR PRIMULA AND PETUNIA

C. Deulofeu | J. Aguila Vila

29. TOMATO PRODUCTION IN BARK SUBSTRATES

G.C.S. Wilson

30. A PRELIMINARY STUDY ON THE EFFECT OF VOLCANIC ASH AND ORGANIC SOIL FOR EARLY PRODUCTION, YIELD AND QUALITY OF TOMATOES

U. Dinç | Ö. Gezerel | B. Çevik | N. Kaska

31. USE OF VERMICULITE AS A GROWTH MEDIUM FOR TOMATOES

G.C.S. Wilson

32. EFFECT OF SUBSTRATE AND NITROGEN SUPPLY ON YIELD AND QUALITY OF MINICYMBIDIUM

R. Arnold Bik | Th.J.M. van den Berg

33. SUBSTRATES AND NUTRIENT FLOW

A. Klougart

34. IN VITRO RHIZOGENESIS OF ROSA SP. IN DIFFERENT SUBSTRATES

A. Aldrufeu | M. Pages | J. Messeguer | E. Melé

35. STRAWBERRYS SACKS CULTURE ON STEEP GRADIENT SOIL. EVALUATION OF THE SUBSTRATES AND THE SACK TYPE AND POSITION ON THE SLOPE.

O. Pagès | C. Prado | M. Sauleda

36. PEAT BAGS AS GROWING SUBSTRATES FOR GREENHOUSE TOMATOES AND CUCUMBERS

L. Kurki

37. EFFECTS OF DIFFERENT SUBSTRATES AND IRRIGATION REGIMES ON CROP AND PLANT-WATER RELATIONSHIPS OF ASPLENIUM NIDUS-AVIS HORT. AND CYCLAMEN PERSICUM MILL.

O. Marfá | R. Savé | R. Rabella | F. Sabater | M. Pagés | M. Tió

38. LEVEL OF SOME NUTRIENTS IN PEAT GROWING BOARD WITH CUCUMBER DURING ONE GROWING SEASON

J. Tummavuori | M. Herranen | O. Reinikainen

39. DAILY VARIATION OF TRANSPIRATION RATE AND STOMATAL RESISTANCE OF CAPSICUM ANNUUM IN FOUR SUBSTRATES

F.X. Martínez | L. Tapia | N. Cañameras

40. THE EFFECT OF N-FERTILIZATION ON THE GROWTH OF CHRYSANTHEMUM “WHITE HORIM” IN BARK COMPOSTS AND PEAT

M.D. Sant | A.R. Selmer-Olsen | H.R. Gislerød | K. Solbraa

41. GROWTH AND COMPOSITION OF CHRYSANTHEMUM BY VARIOUS LEVELS OF MANGANESE AND COPPER IN PEAT SUBSTRATE

D.K. Markus | G.W. Wulster | R.K. Shaw

42. THE USE ON AMMONIUM – N FOR CONTROLLING PH AND IRON AVAILABILITY IN RECIRCULATING NUTRIENT SOLUTIONS

Edward W. Johnson | P. Moore

43. USE OF RECIRCULATING HYDROPONIC SYSTEMS FOR MACRO- AND MICROPROPAGATION STUDIES.

Paul E. Read | S. Garton | K. Louis

44. CAPILLARY WATERING OF CUT CHRYSANTHEMUM

Hans R. Gislerød

45. A COMPARISON OF HYDROPONIC SYSTEMS FOR TOMATOES

J. Willumsen

46. MARGINAL LEAF NECROSIS BY BORON EXCESS ON A TOMATO CROP CULTIVATED IN A SUBSTRATE OF POSIDONIA OCEANICA. (L.) DEL. POSSIBILITY OF CONTROL.

H. Verlodt

47. POSSIBILITY OF REUTILIZATION OF A COMPOSTED SUBSTRATE OF ‘POSIDONIA OCEANICA’ (L.) DEL. IN A TOMATO GROWTH BAG

H. Verlodt | A. Ben Abdallah | Y. Harbaoui

48. A COMPARATIVE STUDY OF PEATS AND OTHER MEDIA FOR CONTAINERIZED FOREST TREE SEEDLINGS

B. Radjagukguk | . | O. Soeseno | .

49. PROPAGATION OF PEACH HARDWOOD CUTTINGS IN MILLED PINE BARK AND OTHER MEDIA

G. Scalabrelli | G.A. Couvillon | F.A. Pokorny

50. REVIEWING AND EVALUATION OF NEW MATERIALS USED AS SUBSTRATES

O. Verdonck

51. THE USE OF WOOD WASTE COMPOSTS IN THE MAKING OF SUBSTRATES FOR CONTAINER CROPS

L.M. RIVIERE | C. MILHAU

52. POSSIBILITIES OF SEWAGE SLUDGE USED AS A FERTILIZER IN AGRICULTURE

J. Coosemans | C. Van Assche

53. PREPARATION AND COMPOSTING OF PEAT AND DEWATERED SEWAGE-SLUDGE

W.R. Carlile | M.A. Macfarlane | E. Sweetland

54. THE USE OF COMPOSTED PEAT-SLUDGE MIXTURES IN HORTICULTURAL GROWTH MEDIA

W.R. Carlile | L.G. Davies | E. Sweetland

55. COMPOSTING COMBINED CITY REFUSE AND SEWAGE SLUDGE

M. Soliva | M. Pujola | M.J. Bonilla | R. Poch | F. Giraldez | M. Batllo

56. POSIBLE USE OF RESIDUAL SLUDGES FROM PAPER INDUSTRY AS A SUBSTRATE

M. Soliva | J. Molas | V. Garcia | R. Ferrer | M. Baldi

57. COMPOSTING SEWAGE SLUDGE – PINE BARK

O. Burés | M. Soliva

58. THE USE OF SLURRY PRODUCED BY METHANOGENIC FERMENTATION OF COW MANURE AS A PEAT SUBSTITUTE IN HORTICULTURE – PHYSICAL AND CHEMICAL CHARACTERISTICS

Y. Chen | Y. Inbar | M. Raviv | A. Dovrat

59. SLURRY PRODUCED BY METHANOGENIC FERMENTATION OF COW MANURE AS A GROWTH MEDIUM FOR SOME HORTICULTURAL CROPS *

M. Raviv | Y. Chen | Z. Geler | S. Medina | E. Putievski | Y. Inbar

60. NEW DEVELOPMENTS IN THE USE OF GRADED PERLITE IN HORTICULTURAL SUBSTRATES

D. ir. O. Verdonck

61. SUCCESSFULL GROWING ON GRODAN ROCKWOOL IN THE NETHERLANDS

J.C.C. Welleman | F.L. Verwer

62. INFORMATION ON THE LATEST RESULTS OF GROWING ON GRODAN®

J. Blaabjerg

63. INDUSTRIAL PRODUCTION OF PEAT SUBSTRATES APPROPRIATE WAREHOUSING

W. Fikuart

64. ASPECTS OF THE RAW MATERIAL PEAT – RESOURCES AND AVAILABILITY

G.K. Schmilewski