Category: Orchid Doctor

LYCASTES: Breeding in California

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For a review see W9-149 -- natural hybrids = questions and discussion about possible hybrids, variations in breeding, distribution and habitats in Guatemala and elsewhere; flowering months given in... Read More

MAG AMP: A Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Magnesium ammonium phosphate plus, since 1966, magnesium potassium phosphate; formula 7-40-6; good for species; incor porate into potting mix; slow-release. A68-1057; A77-1000; OWD Read More

MAG AMP: Applying in Daily Waterings

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A slow-release fertilizer dispensed a brass cylinder 12 inches by 1.5, filled with Mag Amp placed in line of the watering hose; changed monthly; refer to OA78-216 Read More

MAG AMP: Slow-release Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Grower experiment successful: use the coarse size and place on top of pot medium; moisten and let it "cake"; normal watering ensues; the cake slowly dissolves; roots not burned by it; descriptive n... Read More

MAG AMP: Fertilizer Dispenser Homemade

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Consists of a piece of PVC pipe 50cm long inside measuremnt of 3.8cm with male thread, reducers 2.5 cm. at each end, a plastic filter 3.8 cm. at the end nearest the outlet hose, a connector to the ... Read More

MAG AMP: In a Comparative Test This Proved Best

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidiums grown in a uniform mix separated into batches and fed with nine different fertilizers, including Aquasol, Fish Emulsion, Osmocote, etc., proved Magamp+K produced the most flower spikes. ... Read More

MAGENTA GA7 VESSELS: A New Flasking Product

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A new plastic flasking container tests made at the Eric Young Micropropagation Centre resulted in its adoption for orchid seed propagation; the system and its advantages outlined at A81-1465 Read More

MAGNESIUM SULPHATE: Application as Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago During the summer months apply it as a spray or powder direct to the pot, at the rate of one teaspoon each month and spread around on the medium, or, at the rate 500gr. per 454 litres of water mont... Read More

MAGNESIUM SULPHATE: Best Amount to Use

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 100 ppm. decreased the growth of cymbidiums, phalaenopsis and cattleyas; 50 ppm. is optimal for cattleyas; 25 ppm. is near optimal for cymbidiums and phalaenopsis. OA79-130; wrong; plants tolerate ... Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More