Category: Orchid Doctor

FERTILIZERS: As Pot Surface Dressing, What Is Safest?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Liquids are safeest and are effective. A79-370 Read More

FERTILIZERS: Balanced

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It provides nutrients in these ratios: 1 molybdenum, 60 copper, 200 boron, 200 zinc, 500 manganese, 1000 chlorine, 1000 iron, 10,000 sulphur, 20,000 magnesium, 20,000 phosphorus, 50,000 calcium, 10... Read More

FERTILIZERS: Basic, to Mix with Media

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To 1 cu. yard of mix add 1.5 kg. of potassium sulphate, 1.0 superphosphate, 1.0 dolomite lime, 100 grams fritted trace elements, 250 grams iron sulphate, or 60 grams iron chelate; slow release fert... Read More

FERTILIZERS: Best After Test

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Levels of fertilizing on cymbidiums which gave best results were N -- 100ppm., P -- 20ppm., K -- 75ppm., Mg (Magnesium sulphate) 25ppm., and Fe (Chelated Iron) 8 to 10ppm.; these represent very wea... Read More

FERTILIZERS: Best for Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In an experiment in Southern California a balanced 20-20-20 produced 50% more spikes than 25-10-10 at the end of two years. OA84-78 Read More

FERTILIZERS: Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use 30-10-10 in bark or Mexican tree fern. A79-124 Read More

FERTILIZERS: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Table of ratios for 10 commercial fertilizers giving fertilizer materials, fertilizer ratios, application rate, pH values. P68(3)10 Read More

FERTILIZERS: Color of Liquid Stock Solution

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Two good dyes are available, malachite green and potassium permanganate, available from drugstores; takes very small amounts to color a solution; experiment with quantities to establish a ratio in ... Read More

FERTILIZERS: Controlled Release Types

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Osmocote with nine months release rate is improved upon with an extra liquid fertilizer solution from Spring onward, especially if the seedlings had been placed in a larger pot size to begin. AU82-106 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