Category: Culture

LOAMITE: A Forest By-product

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It was ground, charred, impregnated with some nitrogen and used in potting mixes. A66-992 Read More

LOAMITE: Soil Conditioner

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Appears to be a very fine charcoal grind. OD68-307 Read More

LOAMITE: Looks Like Sawdust

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Treated with acid to carmelize the lignins; breaks down about 10% per year; no longer (1974) made; sponge rock is one substitute; perlite is another; other possibilities mentioned; refer to C74-21 Read More

LONG-BLOOMING PLANTS: Sophronitis coccinea and Its Hybrids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The species itself can last in bloom for two months; many of its primary hybrids last a month, such as Epiphronitis Pat, Slc. Martha Withner, Brassophronitis Edna, Sc. Boltonii, etc. ODA76(3)-27; D... 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

CARBON DIOXIDE: Percentages of Composition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In air it is about three hundredths of one percent; plants can use greater amounts to approximately 0.5 to 1%; data not related to orchids. OR72-34 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

MAGNESIUM SULPHATE: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is a key element, instrumental in the formation of chlorophyll and plant fiber. OA78-51It is the only mineral to appear in the chlorophyll molecule; vital to green plants for photosynthesis. AU7... Read More

FERTILIZERS: 30-10-10 with Soil Acidifiers and Chelated Iron

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A suitable fertilizer, use 1/2 tpg. at every watering but let 10% of the liquid run out of the pot for leaching action. A74-114 Read More