RAINWATER: Its Ph

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.

Article Blog   Article Index
Falling rain water absorbs carbon dioxide from the air which lowers the pH to about 5.5; the pH is changed also by contact with vegetation, soil, etc. F68-112
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Rainwater

Rainwater Comments
RAINWATER: Abnormal Acidity Where acid rain occurs the heavy metal elements are leached from the soil so there is loss of copper, zinc, lead and trace elements and the vegetation is killed because the pH drops to 4.8; calcium controls the acidity levels and can be added to water. AU84-99 0
RAINWATER: A Cistern to Collect It A 1000 gallon (4545 liters) cistern can be constructed with cement blocks, lined with a double 6mil. layer of polyethylene sheet, with styrofoai insulation placed between the blocks and the poly for insulation; rigged up with the necessary downspout, home-made filter, a pump, etc.; diagram; refer to A82-840 0
RAINWATER: Characteristics Is it better than tap water?; it is satisfactory but not superior to tap water; many tap and well waters contain significant nutrients which make them preferable; in nature the canopy of foliage in the trees adds a solution of nutrients to rainwater. A67-467; A68-524 0
RAINWATER: Characteristies In many places rain water is laced with chemicals and can be acid; most of it is as pure or purer than tap water; it can be collected and stored in clean tanks not chromed or tarred for use on orchids . Ca81(1)-7 0
RAINWATER: Collected A particular roof area collects 2000 gallons of water with a one inch rainfall; it is stored in a 9000 gallon cistern; is electrically heated to 76 dF to temper it when being applied to the plants and to effect better assimilation of soluble fertilizer. OIE87Sept-3 0
RAINWATER: Recycled Strongly advise riot using re-used water even after treating it with Physan or other pesticide because problems are spread by it to other plants. A73-503 0
RAINWATER: Reservoir Construction For details of design, costs, construction methods,etc.; refer to OD67-23+ 0
RAINWATER: Storage If collected off a reasonably clean surface into 25 gallon plastic containers no chemical treatment should be necessary A79-1258Keep it in glass or plastic containers in the dark; roof-collected water picks up bird droppings, dust, etc., which pro mote algae growth in the light. F68-112 0

New Topics

  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. james Hu commented on orchid Den. vannouhuysii
  5. Chase Hubbard commented on member plant Hknsa. Sogo Doll by Tom Kuligowski
  6. Colin Campbell commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth
  7. 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
  8. Carol Holdren commented on member plant Lc. Memory of PienPien Wei by Robert Rand
  9. Robert Rand commented on member plant Bc. Yellow Bird by John Small
  10. Sharie Heckaman commented on member plant Btcm. Hwuluduen Chameleon by Diana Sammy
  11. 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
  12. Sandi Block-Brezner commented on topic "Need Help Identifying this Orchid" by Marianna Hynson
  13. Sandi Block-Brezner commented on member plant Bsn. Maikai var. Louise by Sandi Block-Brezner
  14. Vickie Seibert commented on member plant Phal. Ember 'Carmela' by Vickie Seibert
  15. John Small commented on member plant B. nodosa ''H&R' 4N x 'Mas Mejor'' by John Small
  16. Robert H. Findlay commented on topic "Parentage of RLC Memoria Emma Chen" by Dean Haas
  17. Dean Haas commented on article "Have Local Orchids to Sell or Trade?" by Sys Admin
  18. Eileen Pryor commented on member plant Den. chrysotoxum by Tom Kuligowski
  19. Gustavo da Silva commented on member plant Max. callichroma by Gustavo da Silva
  20. Peter Goodin commented on topic "What is this?" by John Small