Category: Orchid Doctor

FERTILIZERS: Dry Soluble Types

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago These are best; there is no point in packaging, transporting or storing water. OD67-220 Read More

FERTILIZERS: Element Requirements for Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago N -- 50 ppm., P -- 50 ppm., K -- 50 ppm., plus Magnesium Sulphate -- 50 ppm. AU82-98 Read More

FERTILIZERS: Element Requirements for Most Other Than Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago N -- 100 ppm., P -- 20 ppm., K -- 75 ppm., Mg -- 25 ppm., Fe -- 8 ppm., Ca 50 to 200 ppm., Mn -- l ppm., Cu 0.025 ppm., Zn -- 0.2 ppm., B -- 0.025 ppm., Mo -- 0.001 ppm, and S -- 10 ppm. AU82-98 Read More

FERTILIZERS: Established Facts

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Orchids respond to added nutrients; slow growers get indigestion from too much; feed is best when they are growing. AU85(1)-37 Read More

FERTILIZERS: Fertilizers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Higher rate produces fewer flowers = for cattleyas a 1 tpg weekly produces only 1 flower on many vigorous plants; a change to 1 tpg. monthly should improve flowering. A84-699 Read More

FERTILIZERS: For Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In nutrient culture, growth of hybrid plants was optimal with 50 ppm. each of nitrogen, potassium and magnesium. RHIn parts per million: N-50, P-20, K-50, plus Mg-50. AU82-98 Read More

FERTILIZERS: For Cattleyas, Paphiopedilums and Miltonias

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Using organic fertilizer such as fish emulsion (5-1-1) once in a while is good but continued use does not provide enough potassium and phosphorous; a 3-1-1 ratio soluble fertilizer provides them in... Read More

FERTILIZERS: For Community Pots with Milled Sphagnum

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use regular fertilizer at one-third strength, and then increase to one-half. A79-584 Read More

FERTILIZERS: For Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In a nutrient solution growth of hybrid plants was optimal with lOO ppm. nitrogen, 50 to lOO ppm. potassium and 25 ppm. of magnesium. OA79-127 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