Mick,
I have foliar feed my variety of Orchids including lots of
Pluerothallids with lots of fertilizer for years. I use a very dilute
solution usually 1/10 to 1/100 of the recommended for normal
watering. Most of the time I just mix it in a sprayer and mist the
plants with it every morning. It is a standard ritual of mine in the
summer to go out to my greenhouse before I go to work and mist my
orchids with fertilizer.
I have used Peters, 20-20-20, DynaGro 7-8-6, and lots others. As long
as I keep the concentration low, I have found no problems with them.
How much are the plants using I have no idea, as I am not doing any
leaf analysis. I do see an very good growth in my plants when I am
using the foliar feeding. This may be due to the fact that I foliar
fertilize in the summer. But I have not seen any problems with my
plants foliar fertilizing, so I keep doing it.
Try it with some of your plants and see how if influences them, if
they look better and grow more increase the number you are
fertilizing.
At 9:31 AM -0600 7/29/05, Richard Buchanan wrote:
Have we visited this topic recently? Sorry but I didn't use foliar
spray until recently [WONDER GROW]. Believe I've read that plants
can't utilize organic nitrogen, until it is broken down by bacteria
& fungi in the soil/compost. Many of my Pleurothallids are mounted.
The mounts are of course not sterile; but, would it be better to use
an inorganic fertilizer for mounted plants? (i.e., MSU?).
Are all inorganic fertilizers suitable for use as foliar spray?
mickinmontana
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--Tom
/----------------------------------------------------------------------------------------
| Tom Hillson Agriculture Computer Services Manager
|(515) 294-1543 College of Agriculture
| Iowa State University
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|"The only thing I have too much of is too little time"
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