Category: Orchid Doctor

FOLIAR FEEDING: Benefits

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Research shows many plants, presumably including orchids, are able to absorb nutrients through their leaves, buds, flowers and fruits. OD72-211Research shows that certain plants are able to absorb ... Read More

FOLIAR FEEDING: Cattleyas as Subjects

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Uptake can be vividly demonstrated of radioact ive phosphate moving into the leaf, then to the pseudobulb. A85-974 Read More

FOLIAR FEEDING: Controversy Lingers on

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One group believes it works, the other doubts it and both are right to a degree because the run-off to the roots is important; but in 1967 radioactive phosphorus was absorbed by the leaf half an ho... Read More

FOLIAR FEEDING: Effective or Not?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Experiments show that a cattleya hybrid readily absorbed a trace chemical through the leaves which suggests other nutrients will also be absorbed; mid-morning is the best time to apply. AU82-107; A... Read More

FOLIAR FEEDING: Experimental Tests

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cattleya leaves and roots were compared for absorption of derivatives from phosphoric acid; leaves readily absorbed it and it was transmitted in 24 hours to the pseudobulbs. OBII-209 Read More

FOLIAR FEEDING: Foliar Fertilizers So-called -- How Do They Differ From the Usual Ones?

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Not much and claims for them are so much hot air, they are almost the same, with an analysis usually above 40 total. A81-266 Read More

FOLIAR FEEDING: Foliar Uptake

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Absorption of phosphate demonstrated; refer to W2-155 Read More

FOLIAR FEEDING: In Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Experiments showed that foliar feeding by absorption through the leaves took place, if at all, at inconsequential rates. A64-391 Read More

FOLIAR FEEDING: Not Satisfactory for Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Good for tomatoes and plants with pubescent foliage, thin cuticles and many stomata; orchid leaves have thick cuticles usually, few stomata, and are resistant to water loss; their roots are especia... 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