FOLIAR FEEDING: Action

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 4 years ago.

Article Blog   Article Index
Experiments show that 90%, of the total potential foliar absorption occurs within 30 seconds if the leaf is moist. OA80-80
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Foliar Feeding

Foliar Feeding Comments
FOLIAR FEEDING: Benefits Research shows many plants, presumably including orchids, are able to absorb nutrients through their leaves, buds, flowers and fruits. OD72-211Research shows that certain plants are able to absorb certain nutrients through their leaves; heavy waxy layers (cutin) on some plants checks absorption; some growers declare the fertilizer that goes in the pot is the beneficial one. A62-926 0
FOLIAR FEEDING: Cattleyas as Subjects Uptake can be vividly demonstrated of radioact ive phosphate moving into the leaf, then to the pseudobulb. A85-974 0
FOLIAR FEEDING: Controversy Lingers on One group believes it works, the other doubts it and both are right to a degree because the run-off to the roots is important; but in 1967 radioactive phosphorus was absorbed by the leaf half an hour after application on large plants, so the assumption is other elements can be absorbed by the same pathway; algae can be a build-up problem on the leaves in foliar feeding. F83-11 0
FOLIAR FEEDING: Effective or Not? Experiments show that a cattleya hybrid readily absorbed a trace chemical through the leaves which suggests other nutrients will also be absorbed; mid-morning is the best time to apply. AU82-107; A84-210; A86-719 0
FOLIAR FEEDING: Experimental Tests Cattleya leaves and roots were compared for absorption of derivatives from phosphoric acid; leaves readily absorbed it and it was transmitted in 24 hours to the pseudobulbs. OBII-209 0
FOLIAR FEEDING: Foliar Fertilizers So-called -- How Do They Differ From the Usual Ones? Not much and claims for them are so much hot air, they are almost the same, with an analysis usually above 40 total. A81-266 0
FOLIAR FEEDING: Foliar Uptake Absorption of phosphate demonstrated; refer to W2-155 0
FOLIAR FEEDING: In Cattleyas Experiments showed that foliar feeding by absorption through the leaves took place, if at all, at inconsequential rates. A64-391 0
FOLIAR FEEDING: "liquid Sunshine" Formula As used by rhododendron growers: 1 pint corn syrup (Dextrose), 1 pint hot water, 2oz. seaweed liquid concentrated fertilizer, plus trace elements; mix well; use 4ttpg.; has been used successfully on seedlings; fish emulsion may be substituted for the seaweed product. OA82-73; OA83-147 0
FOLIAR FEEDING: Not Satisfactory for Orchids Good for tomatoes and plants with pubescent foliage, thin cuticles and many stomata; orchid leaves have thick cuticles usually, few stomata, and are resistant to water loss; their roots are especially adapted for absorption. A65-910 0
FOLIAR FEEDING: Sugars Use a mist sprayer to apply a solution containing one tpg. regular fertilizer plus 2 tpg. of sugar at time of spiking; dilute molasses can also be used. OA82-73 0
FOLIAR FEEDING: Sugar Sprays These caused cymbidiums to bloom earlier with a stronger solution: 1 pint Karo corn syrup, 4oz. fish emulsion or seaweed+fish fertilizer, 1 teaspoon boric (borassic) acid, 12 oz. water; mix well, use a 4ttpg. as a booster starting in June. OA84-85 0
FOLIAR FEEDING: Through Leaves Foliar applications of nutrients can cause salt build-up on leaf surfaces; this supports algae growth; wash off the salt. F79-117 0
FOLIAR FEEDING: Through Leaves, Etc. The cuticle areas of (non-orchid?) plants can absorb fertilizer; it can enter easily. C73-106 0
FOLIAR FEEDING: Who Uses It? At Kew it is mostly used in preference to fertilizing in the pots. OR87-7 0
FOLIAR FEEDING: With Water Soluble Fertilizers Use a mister or fine spray, especially on the undersides of leaves; 90% can be absorbed at the proper dilution; do not use in hot sun; do not use on newly potted plants before signs of activity. S114 0

New Topics

  1. Khanh tran asked question Arranges Elro in category General Discussion
  2. John Small asked question Which is correct? in category General Discussion
  3. Jean Seymour asked question Can someone give me the name of this orchid? in category Phalaenopsis
  4. Debbie Chase asked question Help to Identify Orchid in category General Discussion
  5. Colin Campbell asked question Unmatched Oncidium Alliance Orchid in category General Discussion

New Comments

  1. Fran Fassman commented on orchid E. Thomas Fennell
  2. Lauren Hutchison commented on topic "Unmatched Oncidium Alliance Orchid" by Colin Campbell
  3. Lauren Hutchison commented on member plant Oip. Celtic Sun 'Maya' by Dex W
  4. Lauren Hutchison commented on member plant Phalaenopsis Tristar by Lauren Hutchison
  5. Lauren Hutchison commented on member plant Phal. OX Golden Apple 'Honeycrisp' by William Gorski
  6. Debbie Chase commented on topic "Help to Identify Orchid " by Debbie Chase
  7. Tien Pham commented on member plant V. Yip Sum Wah 'Flame' by Tanya Lam
  8. Carol Holdren commented on topic "Can someone give me the name of this orchid?" by Jean Seymour
  9. Carol Holdren commented on member plant Spathoglotis plicata (Ground Orchid) by Frances LaVigne
  10. Frances LaVigne commented on member plant Grt. Rosy Jewel var. alba by Frances LaVigne
  11. Barry Mellefont commented on article "ANTS: Nesting Between Osmunda and Bark Slab Requires Control Safe for Visiting Hummingbirds" by Robert M. [Bert] Hamilton (Compiler)
  12. Carol Holdren commented on member plant Bc. Jairak Kiku 'Jairak kiku' by Frances LaVigne
  13. Frances LaVigne commented on member plant C. purpurata var. (flammea x sanguinea) by Carol Holdren
  14. Frances LaVigne commented on member plant Ascda. Kulwadee Fragrance by Frances LaVigne
  15. Melvin Waki commented on member plant Hwra. Lava Burst by Jeanne M Uzar
  16. Carol Holdren commented on member plant Den. Ruth Chun's Gemini by Melvin Waki
  17. Samuel Yanos commented on member plant Coel. rochussenii 'Waki' by Melvin Waki
  18. Mo Chen commented on member plant Den. longicornu by Mo Chen
  19. Yahoo Alex commented on member plant Habenaria Tanager by David Nickerson
  20. Adam Almeida commented on member plant Chz. Hsinying Pink Doll 'Hsinying' by Melvin Waki