Orchid doctor

FERTILIZING: Signs of Over-fertilizing

Culture Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 3 years ago.

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The plants are usually lush-growing, dark green with lots of leaves and no flowers; just like my Encyclia vespa. A84-129
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Fertilizing Comments
FERTILIZING: Cattleyas, When to Stop The idea that it is good to stop fertilizing at some point is a myth; plants at rest do not need fertilizer but it does no harm to them; 30-10-10 or 20-10-10 are better than 18-18-18 for steady feeding. A73-338 0
FERTILIZING: Enhanced Feeding If properly controlled it produces more and larger flowers. A73-909+ 0
FERTILIZING: Of Cattleyas in Bark Use 1/2 to 1 tpg of 30-10-10 every second watering all year round. A81-1093 0
FERTILIZING: Paphiopedilums Dissolve six ounces of a 30-10-10 soluble fertilizer, or eight ounces of a 21-7-7- in 100 gals of water and apply monthly; or at 1/2 strength apply fortnightly. A72-631 0
FERTILIZING: Programme Recommended Monthly: one pound to 100 gals. water, or fortnightly 1/2 pound to 100 gals. of water; or 1/4 pound if applied weekly; tree fern, osmunda, so lite, holite and terrestrial mixtures require 10-10-10 ratio; barks. need 30-10-10; or, if 20-20-20 is used use half as much; fill the pots with solution freely, to leach. F79-116; for extensive treatment, refer to F77-129+ 0
FERTILIZING: Using a Plastic Drum for Holding A 200 litre size container with piping, a valve, filter and pump to dispense premixed Aquasbl feed; refer to AU86(2)-19 0
FERTILIZING: Vandas For organic, use fish emulsion; for inorganic, use 30-10-10 or 20-10-10 at two to three teaspoons per five gallons water; do not reduce nitrogen proportions, just keep amount per application low. A65-152 0
FERTILIZING: With Every Watering It is not advised; use 1/2 tpg. of 30-10-10 at every second watering. A72-905 0

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