Category: Culture

POLYGAL: Greenhouse Covering Materials

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Made with two layers of plastic with dead air space between to conserve heat by providing insulation. A87-1171 Read More

PH (GENERAL): Chemist's Term

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It refers to "potential hydrogen ion concentration"; it denotes the acidity or basidity of liquids of the soil solution; the neutral point is 7, acid solutions are lower than 7, basic solutions are... Read More

POTASSIUM: Excess Problems

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Scientific tests have Isolated potassium as the potential cause of growth retardation, particularly of flower stem length; a very little is too much and flower production can be reduced substantial... Read More

POT-BOUND PLANTS: Are They Necessary?

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago There is a difference of opinion as to whether some pot-bound plants perform better; the Dendrobium nobile types prefer a tight root mass, but the cane-type dendrobiums can be kept in an active gro... Read More

POTS (GENERAL): Soak in Clorox

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Make a solution of one part Clorox to four parts water; clean pots well of loose dirt before soaking one-half hour; follow with a washing, a thorough drying and a last rinse before using. A69-130; ... Read More

POTS (GENERAL): Sterilizing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It's feasible to use a microwave oven if only a few pots at a time are done; use a temperature of only 180 dF for 30 minutes to kill harmful microorganisms; a better way is to place the pots in a p... Read More

POTS (GENERAL): Washing Them

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Scrape pots free of loose dirt; soak them overnight in 10 gals, water to which has been added one cup of citric acid; then scrub them in another 10 gals, to which has been added one-half gal. Cloro... Read More

POTS: A Kitchen Colander Can Be Used

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A ten-inch plastic one with a full complement of holes provided excellent drainage and aeration for a specimen miltonia, fitted into a normal pot. A82-586 Read More

POTS: Are Clay or Plastic Ones Preferable?

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The main thing is to use only one kind, in order to achieve uniform watering if possible; if a choi ce is faced, choose clay pots with at least three slits in the sides low down because it is impos... Read More

POTTING MEDIA: The Best by Test

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Of crushed granite, coarse bark, charcoal, peach pips, peanut husks, peat, perlite, polystyrene, vermiculite, coarse sand, broken brick, pine needles, foam rubber, etc., and "flaky" bark and the be... Read More