Orchid doctor

CALCIUM: Contributes to Drainage

Culture Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 3 years ago.

Article Blog   Article Index
In the presence of calcium particles in the media flocculate or come together; in the presence of organic matter, aggregates are formed and drainage is thereby achieved. OD71-278
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Calcium

Calcium Comments
CALCIUM BUILD-UP: On Leaves It provides protection from hot sunshine in California. OD68-197 0
CALCIUM CARBONATE (CACO3): Used in Mixes In paphiopedilum mixes it is used as an additive in various forms: chalk, limestone, marble, magnesium limestone, gypsum, coral, shells of molluscs, etc. A75-712 0
CALCIUM: Characteristics An essential element; removes certain organic acids; is part of cell wall construction. OA78-51 0
CALCIUM CHLORIDE, ANHYDROUS: Used for Storing Pollen and Seed Is sold by scientific supply houses; place a layer of it about 1/2 to three-quarters of an inch in the bottom of a Mason jar; cover with 1/2 inch layer of cotton before placing seed. A67-45 0
CALCIUM: Deficiency Black areas appear on cattleyas during hot weather but they are not likely caused by sunburn although the symptoms are similar; deficiency symptoms are most prevalent when cattleyas are in active growth and new leads are maturing; add a little lime to the top of the potting medium: a level teaspoon to a 6inch pot is ample. F83-54It causes young leaves to turn black at the tip, then spreads downward, preceded by ye1low "halo" or margin; apply lime to the top of the mix in the pot. AH86-101; F87-58 0
CALCIUM: Functions as Fertilizer Occurs in plants as calcium pectate; cements cells together; moves various compounds within the plant; enhances root development; is relatively immobile so a continuous supply is necessary. AU75-47 0
CALCIUM: Supplying a Necessary Element Calcium hydroxide is the most suitable source, at 50 to 200 ppm., or one gram of Hydrated lime to 10 litres of water, or 2.25 grams per 5 gallons of water; refer to AU84-97 0

New Topics

  1. Marilynn Davis asked question Can grow light cause deformed leaves? in category General Discussion
  2. George Su asked question New Intergeneric Orchids in category Other Genera
  3. Robert Scully asked question Searching for a special hybrid in category General Discussion
  4. Edward Zapata asked question Cymbidium breeding info? in category General Discussion
  5. Hfs photo Henry Shaw started topic Missing Gan Lin phal variety in category General Discussion

New Comments

  1. Iggy9 Sharie Heckaman commented on member plant C. amethystoglossa var. salmonea by Jorge Nascimento
  2. Image Carol Holdren commented on member plant C. skinneri by Roberto Lizama
  3. Stefan Neher commented on topic "New Intergeneric Orchids" by George Su
  4. 92f7c225 2490 4d3b 822c 2f4b8f30d6b8 Mary Lane commented on topic "Orchid not found in Orchids.Org" by Mary Lane
  5. Iggy9 Sharie Heckaman commented on article "Catasetum lendarium nv. sp 2020" by Ariel Blind
  6. Marilynn Davis commented on topic "Can grow light cause deformed leaves?" by Marilynn Davis
  7. Daniel Mumau commented on orchid Lc. Lancer
  8. Edward Zapata commented on topic "Cymbidium breeding info?" by Edward Zapata
  9. Stefan Neher commented on orchid Bl. Joanne Singer
  10. Stefan Neher commented on article "BLACK ROT: Pythium Ultimum" by Robert M. Hamilton (Compiler)