IRON: In Fertilizer Programs

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 4 years ago.

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Chelated iron should be used instead of normal iron siulphate at a rate of 8 to lOppm. AU84-199
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Iron Comments
IRON: Characteristics As a growth element it is used in the formation of chlorophyll; it is an assumed antidote against chlorosis; colors flowers darker; in many cases Iron chelate makes whites turn pink; a trace element. OA78-51 0
IRON: Deficiency In mi Itonlopsis it shows up as either blotchy leaves or as leaf tips faded from loss of green pigment; use a half dose of Sequestrol one day after heavy watering. OIE85My-3 0
IRON: Functions in Fertilizer Vitally important in the formation of chlorophyll but it is not a part of it. AU75-47 0
IRON: In the Water Supply Watering directly into the pot will cause little harm to the plants; on the leaves the iron precipitates out and colors them coppery,- eventually to reduce the light intake of the leaf and weaken the plant; remove the iron economically if possible from the water by treatment. A87-1175 0
IRON: Odontoglossums Need it Chelate of Iron should be supplied to the plants strictly according to the instructions on the label; add 5ml of GU49 (powdered iron) to the slow re lease fertilizers (30ml Osmocote, nine months release type, 20ml Mag-Amp) 10ml dolomite lime, to nine litres of potting mix. AU81-179 0
IRON: Spray with Chelated Iron If the water supply lacks iron plants can be sprayed with it. A85-205 0
IRON: Stains Red-brown iron stains can be kept off the leaves only by keeping the water carrying the iron from dripping there. A86-42 0
IRON: Well Water Contaminant Leaves of plants get rusty; rust removal filters charged with potassium permanganate are not safe to use with plants. A72-151 0

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  1. Darrin Duling asked question Stenocoryne x Bifrenaria = Grex name? in category General Discussion
  2. Charles Vella started topic Orchid list Cold/Warm in category General Discussion
  3. Jan E Teitsworth asked question Can anyone identify this orchid? in category Oncidium Alliance
  4. Marianna Hynson asked question Need Help Identifying this Orchid in category General Discussion
  5. Sandi Block-Brezner asked question Brassocattleya hybrid? in category General Discussion

New Comments

  1. Charles Vella commented on topic "Orchid list Cold/Warm" by Charles Vella
  2. Sandi Block-Brezner commented on topic "Brassocattleya hybrid?" by Sandi Block-Brezner
  3. Robert H. Findlay commented on topic "looking for info about an unregistered cattleya" by bob lewis
  4. Robert H. Findlay commented on member plant Paph. Jessie by Robert H. Findlay
  5. james Hu commented on orchid Den. vannouhuysii
  6. Chase Hubbard commented on member plant Hknsa. Sogo Doll by Tom Kuligowski
  7. Colin Campbell commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth
  8. Sharie Heckaman commented on member plant NEW HYBRID (Lc. Cornelia 'Floralia' x Lc. Moonlight Dream 'SVO Moonlight Kiss' AM/AOS) var. Compact by Vickie Seibert
  9. Carol Holdren commented on member plant Lc. Memory of PienPien Wei by Robert Rand
  10. Robert Rand commented on member plant Bc. Yellow Bird by John Small
  11. Sharie Heckaman commented on member plant Btcm. Hwuluduen Chameleon by Diana Sammy
  12. Sharie Heckaman commented on member plant (C. Leoloddiglossa var. coerulea 'SVO Baby Blue' x C.Interglossa aquinii var. coerulea 'SVO') 'SVO' by Joshua J Peterson
  13. Sandi Block-Brezner commented on topic "Need Help Identifying this Orchid" by Marianna Hynson
  14. Sandi Block-Brezner commented on member plant Bsn. Maikai var. Louise by Sandi Block-Brezner
  15. Vickie Seibert commented on member plant Phal. Ember 'Carmela' by Vickie Seibert
  16. John Small commented on member plant B. nodosa ''H&R' 4N x 'Mas Mejor'' by John Small
  17. Robert H. Findlay commented on topic "Parentage of RLC Memoria Emma Chen" by Dean Haas
  18. Dean Haas commented on article "Have Local Orchids to Sell or Trade?" by Sys Admin
  19. Eileen Pryor commented on member plant Den. chrysotoxum by Tom Kuligowski
  20. Gustavo da Silva commented on member plant Max. callichroma by Gustavo da Silva