Looking for fertilizer. .

[snowflake311]

I would like to get a new fertilizer. What should I look for. I am also growing many of my orchids in semi hydro.

What numbers should I look for? What types of fertilizers do you use?

[charlesf6]

You should come to my place of employment..
So sorry just teasing! couldn't resist......rough week back!

Someone will be here to help, no worries.

[bil]

I use Ray's Klite at a very low level, about 25ppm nitrogen, that works out a about 1.4g in 6.6 litres.

[Ray]

I am a fan of K-Lite, as well (now, only available through Kelley's Korner Orchid Supplies), and would put the MSU RO formula in second place.

[estación seca]

There is a large amount of plant nutrition information on Ray's Web site.

[Salixx]

I use the MSU formulas from Kelly's Corner - RO formula for ro or rain water and the Tap water formula for when I am busy/lazy or the kitchen sink can't be tied up with my counter-top RO unit and I have to use tap water. I haven't tried the K-lite, but I may give it a go when I am out of the MSU.

I have a lot of plants in S/H and do 1/4 teaspoon per gallon of water for both normally potted (in bark/sphag) plants and S/H. My mounted get the same or weaker depending on whether or not I forgot to dilute it to 1/8 teaspoon/gal for them...

Most the orchids are growing well this way, any problsems I am having I doubt are attributable to the ferts.

[bil]

Basically, fertiliser is just the polishing touches. As long as you don't give too much, and it isn't high in the PK range, ie it's a high nitrogen fertiliser, you won't go far wrong.

[Ray]

Yep. If you look at the biological processes involved, for a plant to put on 1 pound of vegetative mass (easy and fast for corn; long and slow for an orchid), it must process about 25 gallons of water, and only about 5g of NPK fertilizer.

[orion141]

I am using the MSU RO formula with reverse osmosis water for my orchids now.

[Fairorchids]

In our greenhouse we use Peters 20:20:20, monthly in Dec, Jan & Feb, every 2 weeks rest of the year.