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 5 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

New Topics

  1. Fritz wilke asked question This is the plant in category General Discussion
  2. Fritz wilke asked question What kind is this in category General Discussion
  3. Fritz wilke asked question What kind of orchid is this? in category General Discussion
  4. Robert Stagner asked question cattleya mossiae Willowbrook in category General Discussion
  5. Judith Pariseau asked question Paphiopedilum culture differences in category Paph Alliance

New Comments

  1. Carol Holdren commented on topic " cattleya mossiae Willowbrook" by Robert Stagner
  2. Carol Holdren commented on topic "What kind of orchid is this?" by Fritz wilke
  3. Robert H. Findlay commented on member plant Oncidium Sherry Baby by Luesa Estrada
  4. Judy Bailey commented on topic "Paphiopedilum culture differences " by Judith Pariseau
  5. David Hickman commented on topic "Mystery Orchid" by David Hickman
  6. Carol Holdren commented on topic "Bulbophyllum " by Marc Lefkowitz
  7. Carol Holdren commented on topic "Can a Bealleara re-flower" by Tony Borowiecki
  8. Carol Holdren commented on topic "How to care for my new orchid" by Sylvia Spence
  9. Bodil Bruus commented on member plant Ctt. Mrs. W. N. Elkins var. coerulea by Linda Thorne
  10. Jan E Teitsworth commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth
  11. Carol Holdren commented on topic "Brassolaeliocattleyamaianh " by Kim Loan T Nguyen
  12. David garcia commented on member plant Myrmecophilia tibicinis stromburgkia trumpet player by David garcia
  13. Carol Holdren commented on member plant Bc. Maikai by William Gorski
  14. Joe L commented on topic "ID of this Oncidium? " by Joe L
  15. Robert H. Findlay commented on member plant Sngl. macloughlinii by Nicholas Stein
  16. Carol Holdren commented on topic "Name of this orchid" by ETHEL HAY
  17. Carol Holdren commented on topic "Pot. Hawaiian prominence america red orchid" by Paula Milano
  18. Edward Zapata commented on topic "Lady Bug or dangerous bug" by John Small
  19. Wyatt Parker commented on member plant Zygopetalum var. Big Red One by Wyatt Parker
  20. Carol Holdren commented on member plant Renantanda Sunrise 'Prasongs' by Andrew Chan