Category: Culture

PH (GENERAL): And Acidity

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago For results of tests, soil chemistry data, chemicals, availability chart of nutrients relative to a situation, refer to AU85(1)-10 Read More

PH (GENERAL): Adjustment with Dolomite Limestone

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago If paphlopedilums are growing in a medium of 6.3 or lower a light top dressing is recommended; if pH is 7.6 or more, repot the plant. A80-229 Read More

KEIKIS: On Phalaenopsis lueddemanniana

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Culture is the key; possibly too little light, or too much water or potting medium too dense; over-fertilizing also causes keikis to appear. A77-449 Fertilizer at the rate of 50 ppm. could cause... Read More

GRAVEL CULTURE: Pebbles

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago One grower favors them for a collection of epiphytic orchids. OA82-7 Read More

LIGHT, NATURAL: Intensity

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Plants respond to a scientifically balanced fertilizer if light is kept be low 2500 foot-candles or less for some genera during the hottest months. Au84-203 Read More

BARK: Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago A typical mixture would have about 15 parts medium bark, 1-1/2 parts coarse Perlite, 174 part charcoal chips (quarter-inch size). OR87-173For cymbidiums in a high humidity area near the ocean in Ca... Read More

REPOTTING: Wrong Time

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Divisions with no emerging roots warrant treatment as for imported plants if repotted at the wrong time; they need high humidity, shade, frequent light syringings and care to avoid overwatering, ot... Read More

CORK: As Mounts for Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago C. aclandiae, C. walkeriana, C. nobilior, and C. schilleriana, all Braz ilian bifoliates, grow on fissured bark or moss-covered rocks in a pronounced wet and dry seasonal change; cork allows roots ... Read More

BOTTOM HEAT: Under Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago Fine plastic tubes through which warm water circulates are arranged under the growing area and connected to the water heater; temperature is thermostatically controlled with a probe buried in the b... Read More

GREENHOUSES: Plans to Build

Author is Robert M. [Bert] Hamilton (Compiler), posted over 4 years ago A publication is usually available from your government college of agriculture which recommends plans. A72-412 Read More

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