Go Back   Orchid Forum Orchid Care > Orchid Care > Orchid Care Cultivation

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 11-10-2007, 07:52 PM
V.I.P Member
 
Join Date: Mar 2007
Location: South East Florida
Posts: 0
Thanks: 0
Thanked 21 Times in 20 Posts
sandra is on a distinguished road
Fertilizing - How, What, & When

I'm getting a little mixed up with all the info regarding fertilizers. When?, for which kind of orchids (all?), how much? and does all that make a difference depending on what you're growing the orchids in?

Does the following sound right (for growing in the northern hemisphere)?

April through June - high nitrogen formula (e.g., 30-10-10) weakly, weekly
July through September - bloom booster (e.g., 10-30-20) weakly, weekly
October through March - reduce fertilizing to once/month (bloom booster)

OR, a balanced fertilizer (20-20-20), weekly?

Realizing that growing in bark, a high nitrogen fertilizer would be recommended over a balanced one, correct? Alternating between high nitrogen and high phosphorous for orchids in bark is a recommendation over a balanced fertilizer?

AND what if your growing medium is other than bark such as Dyna-rok or Hydroton which contains nothing organic? Is a weekly maintenance of a balanced fertilizer recommended with a flush every 4th watering (using no seasonal, alternating schedule)?

Also, which orchids is it advised to stop fertilizing during winter? I know Dend. Nobiles but, any others?

Last edited by sandra; 11-10-2007 at 09:32 PM.
Reply With Quote
  #2 (permalink)  
Old 11-10-2007, 09:02 PM
articuno75's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Oct 2007
Location: Portland, Indiana
Posts: 5,471
Images: 17
Thanks: 310
Thanked 631 Times in 323 Posts
articuno75 is on a distinguished road
Thank you for asking this! I have not a clue on fertilizers and to the point that I'd rather not use them just cause of the fact of me not knowing the proper use. I'm afraid I'd burn up the plant or do some major damage. Help with the basics is much needed here!
__________________
[COLOR="Blue"]Jenny~

All things beautiful do not have to be full of color to be noticed: in life that which is unnoticed has the most power.
Reply With Quote
  #3 (permalink)  
Old 11-10-2007, 09:57 PM
kmarch's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Melbourne Australia
Posts: 12,937
Images: 1
Thanks: 4,192
Thanked 5,449 Times in 3,014 Posts
kmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond repute
There are different schools of thought on fertilizing.

1) Some take a calendar approach like you've outlined. They set up a seasonal schedule like yours and pretty much give the same fertilizing regimen to all of their plants (all genera).

2) Some go by the growth habits and cycles of the plants (for example someone may fertilize their Paphs year round wiht a weak balanced fertilizer but hit their cymbids hard wiht high nitro in spring and summer and stop altogether in Autumn).

3) Some (like me) don't fertilize.

There are different methods of supplying the fert:
1) through regular watering - for examle "weakly, weekly" where the fert is used fairly dilute (small likelihood of burn) on a regular basis,

2) through mix addatives - either organic material like peat or leaves or a slow release fertilizer like Osmocote,

3) through a foliar spray - sprayed on the leaves and absorbed through them.

Different growers will use different schedules as well as different methods, and even different fertilizers. The bottom line is that the "right" method is the one that works best given your plants, your habits, your location and cultural conditions. The reason fertilizing is so confusing for some is because some of us have found what works best for us and then (probably unintentionally) talk as if this is the "correct" way of doing it. Sometimes what works best for grower A does not work best for grower B so then you have people giving conflicting recommendations.

Therefore, I would recommend trying something I did when I first started growing orchids:

1) First look at the advice given on reputable culture sheets like those provided by the AOS (www.aos.org). These will give you some info specific to a particular genus. For example would you fertilize a orchid that grows and blooms in distinct seasonal cycles the same or differently than one that comes from a tropical region where the seasons are much less distinct and the plant more or less grows and blooms whenever? Good culture sheets will assist you in answering these questions.

2) Then ask people who grow in your geographical location how they fertilize: when, what plants, how much, what method of delivery, etc.

3) Next, compare the conditions to yours - for example one Phrag grower I know says "fertilize heavily" but he does not let his Phrags sit in saucers of water, so all of the extra fert drains away and no leaf burn. If I were to fertilize heavily I would risk burning leaves because I use saucers and the salts will build up in the standing water.

4) Experiment - Try one method for a whole growth/bloom cycle or one full year. Trying one method for only a few months then switching will be of no use since it is not long enugh to see the method's effect on the whole cycle of the plant.

So, get the books out, call up yoru friends or go to your local orchid club meeting or ask questions at the next local show you attend, and start experimenting! I look forward to hearing your results a year from now!

Happy growing!
Reply With Quote
  #4 (permalink)  
Old 11-11-2007, 09:52 AM
V.I.P Member
 
Join Date: Mar 2007
Location: South East Florida
Posts: 0
Thanks: 0
Thanked 21 Times in 20 Posts
sandra is on a distinguished road
Thanks for the reply. More information again....a good thing.

The AOS recommends a high ph fertilizer this time of year to encourage flowering on Phals. I think I'm going to safely stick with a 20-20-20 year long but only on the Phals do a blooming fertilizer now through February (weakly, weekly).

Can anyone here explain what the adverse effects are of using high nitrogen or high phosphorous fertilizers, aside from root damage?

Last edited by sandra; 11-12-2007 at 02:04 PM.
Reply With Quote
  #5 (permalink)  
Old 11-11-2007, 10:55 AM
Cynthia, Prescott, AZ's Avatar
Super Moderator Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Nov 2005
Location: Arizona
Posts: 2,682
Thanks: 0
Thanked 239 Times in 32 Posts
Cynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond reputeCynthia, Prescott, AZ has a reputation beyond repute
In Dendrobiums, high Nitrogen in the fall/winter can cause a lot of keikis I am told. I'm with Kevin in that I have done very little fertilizing over the years, and have had to make a supreme effort to see that my plants are getting some fertilizer during the warmer months. Since there is this concern over Dens and fertilizer, I stopped fertilizing altogether earlier this month or late last month, and won't start again until the dormant Dens are starting to grow again. I plan to give some of the other plants, especially those growing or are heavy feeders, some fertilizer by hand. But since this is hard to do, and I am very pressed for time with so many things going on, it will probably not happen. When I can fertilize everything together, I add MSU for RO water to my RO water storage tank, along with a little Physan to keep down the algae in the left over water as it refills.
__________________
Cynthia

Prescott Orchid Society
Reply With Quote
  #6 (permalink)  
Old 11-11-2007, 11:20 AM
Tobi's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: May 2007
Location: Upstate NY
Posts: 2,007
Images: 62
Thanks: 0
Thanked 7 Times in 7 Posts
Tobi is just fantasticTobi is just fantasticTobi is just fantastic
What Cynthia said about high nitrogen fertilizing during the fall/winter months
for Dens. is right on and from experience I can attest to this as far as keiki
formation. My first 2 orchids were Phal type Dens. and being totally ignorant
to there care, I fertilized and watered weekly throughout the year using a
fertilizer high in nitrogen. Come spring I got nothing but keikis and no blooms.
Now I thought that producing offspring was pretty cool, but I wasn't getting
any spikes. My ignorance continued through the next year and the same thing
happened again. More keikis!! Finally after reading up on this and joining our
local orchid society, I cut back on my fertilizing to every 4-5 weeks (unless
they are actively growing or spiking) during this time. I now have blooms
twice a year and many keikis which are maturing.
Reply With Quote
  #7 (permalink)  
Old 11-11-2007, 04:23 PM
mayres's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Nov 2005
Location: Keizer, Oregon
Posts: 5,244
Images: 2
Thanks: 763
Thanked 3,205 Times in 1,285 Posts
mayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of light
Loved your post Kevin - Fred should make this a "sticky" on fertilizing. I have been using nothing but worm tea for the past 4-5 months - seems to be working! My plants look as good as ever and 35 or 110 mixed genera plants are either spiking or blooming! :-) I will probably use regular fertilizer again one of these days, but not for the time being. Yes - experimenting makes it interesting. Good luck to you Sandra as you explore what works for you. Obviously, in this case, there is more than one road that can be taken to get to the same or similar destinations.
Reply With Quote
  #8 (permalink)  
Old 11-11-2007, 04:45 PM
V.I.P Member
 
Join Date: Mar 2007
Location: South East Florida
Posts: 0
Thanks: 0
Thanked 21 Times in 20 Posts
sandra is on a distinguished road
Mike, I think I'm going to subscribe to the same theory as you, "less is more" and save myself some money while at it. Or additionally, maybe I'll do the blooming fertilizer now for the Phals just through winter and that's it. I'll just keep worming it up for now. I have a huge Dend. that won't quit spiking and flowering. It fell off a shelf during a storm not long ago and I lost over 50% of the flowers and one psbulb . It's now ready to blossom again where the spikes were lost. It's never been fertilized.

OR, maybe I'll do what Tobi does, every 4-5 weeks.


Quote:
Originally Posted by Tobi View Post
My ignorance continued through the next year and the same thing happened again. More keikis!! Finally after reading up on this and joining our local orchid society, I cut back on my fertilizing to every 4-5 weeks (unless they are actively growing or spiking) during this time. I now have blooms twice a year and many keikis which are maturing.
Reply With Quote
  #9 (permalink)  
Old 11-15-2007, 06:32 PM
OrchidArmyWife's Avatar
Junior Member
 
Join Date: Aug 2007
Location: Fort Drum, NY
Posts: 34
Images: 14
Thanks: 0
Thanked 0 Times in 0 Posts
OrchidArmyWife is on a distinguished road
losing my mind Help

Help, i am lost when it comes to all the different fertilizers on the market for orchids. Does anyone have any good suggestions on what they have used and has given them good results? This is the only thing that is really driving me crazy what to use and what to not use, that is the question!!! LOL Help would be great. Thanks

OAW
Reply With Quote
  #10 (permalink)  
Old 11-15-2007, 07:22 PM
kmarch's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Melbourne Australia
Posts: 12,937
Images: 1
Thanks: 4,192
Thanked 5,449 Times in 3,014 Posts
kmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond repute
Check out the chapter on fertilizing in Ortho's All About Orchids or any other decent book on orchid culture. Fertilizing, how, what, when is subject to 1) what kind of orchid you have - there is no one approach that applies to all orchids, 2) the conditions underwhich the plants are being grown, and 3) the habits and preferences of the grower.
There are different approsches to fertilizing outlined in a different thread.
Reply With Quote
  #11 (permalink)  
Old 11-15-2007, 08:00 PM
Tobi's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: May 2007
Location: Upstate NY
Posts: 2,007
Images: 62
Thanks: 0
Thanked 7 Times in 7 Posts
Tobi is just fantasticTobi is just fantasticTobi is just fantastic
Hi Lisa,
There are so many different types of fertilizers and people feel differently
about their views on when or if to fertilize and with what. I personally have
been using MSU (Michigan State University) fertillzer for about 3 years now
and I find it satisfies all my different varieties of orchids. The ingredients are:

19% Total Nitrogen
4% Phosphate
23% Potash
2% Calcium

The Micronutrients (which is less than 1%)
Iron
Manganese
Zinc
Copper
Boron
Molybdenum
Reply With Quote
  #12 (permalink)  
Old 11-15-2007, 08:14 PM
V.I.P Member
 
Join Date: Mar 2007
Location: South East Florida
Posts: 0
Thanks: 0
Thanked 21 Times in 20 Posts
sandra is on a distinguished road
I am dealing with the exact same issue right now OAW. It's all of a sudden, grabbed hold of me that I must fertilize (don't know where I picked it up either) and with the more I'm finding out and with all the additional supplements to go with fertilizing, I'm depleting my fun money account and rapidly. It can get very expensive. Very generally speaking, from those I've asked, it's been the majority who feel that a bloom booster (every other watering) now through the end of winter is recommended on Catts and Phals. Once Phals start spiking it's also recommended to stop all fertilizing. I've also been using seaweed which is supposed to add green growth and nourish the growth that's already there. I'm not necessarily recommending any of this to you as I'm still in the dark with all of this; I'm just telling you of what I've been recommended. (Everybody has a different opinion on the topic of fertilizing though, that's the problem!) Where my gut reaction is saying, TOO MUCH is to this additional chemical nutrient I just bought called, Floralicious Plus which is to be used, alternating with the bloom booster, one week on, one week off. I keep coming back to the theory, 'less is more' and am seriously thinking of quitting everything except the seaweed supplement and worm tea. There's just too much out there and too many opinions to choose comfortably.

Last edited by sandra; 11-15-2007 at 08:24 PM.
Reply With Quote
  #13 (permalink)  
Old 11-15-2007, 08:21 PM
mayres's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Nov 2005
Location: Keizer, Oregon
Posts: 5,244
Images: 2
Thanks: 763
Thanked 3,205 Times in 1,285 Posts
mayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of lightmayres is a glorious beacon of light
Sandra's approach of "less is more" is a good rule to follow. I have been using nothing but worm tea for the past 5-6 months - my plants seem to be doing better than ever. Before that I just picked a fertilizer called "orchid fertilizer" by Gublers at Lowe's - seemed to work fine too. You can go with the recommended frequency on the container - or to make it really easy, dilute it down even further and then use every time - goes with the saying weakly weekly - that way you don't have to keep track of which weeks you used it last. When in doubt - use LESS.
Reply With Quote
  #14 (permalink)  
Old 11-15-2007, 09:50 PM
PhalPal's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Apr 2007
Location: Placentia, Orange County, Southern California, USA
Posts: 4,539
Thanks: 745
Thanked 682 Times in 481 Posts
PhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the rough
My take on this is the fertilizer companies would like us to think we need a new fertilizer for each season and each different genera of orchid.

I have gone months without fertilizing and didn't see a difference. However, given the care-taking soul that I am I feel the need to feed everything. It just makes me feel good and gives me an excuse to play with my orchids. It makes them smile, too, or at least I like to think so.

I use mostly worm tea and seaweed extract. I find them great to mist with for a little foliar feeding; I use this on all kinds of plants. My cyms get Osmocote in addition to the above. Occasionally I will use a mix from Norman's Orchids, a huge phal producer. I alternate with their stuff just to use it up because long ago I felt compelled to get it. It has 20% Nit/16% Phos/15% Pot and a bunch of micronutrients similiar to MSU. Norman's uses this ALL year and does not use 'bloom busters' of any sort, never altering their schedule. I think they should know what they are talking about, so I believe them.

I haven't had one adverse problem using any of the above, which is important to mention. Nothing got burned, nobody died. Everybody seems to be happy. So, that's my concoction and I'm sticking to it.
__________________
"Women Who Obey Seldom Make History."
Reply With Quote
  #15 (permalink)  
Old 11-15-2007, 10:26 PM
PhalPal's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Apr 2007
Location: Placentia, Orange County, Southern California, USA
Posts: 4,539
Thanks: 745
Thanked 682 Times in 481 Posts
PhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the rough
I don't remember where I read it on this forum, but is it true that 'bloom busting' can cause fungus on phals???

BTW - thanks for the great post Kevin, very useful
__________________
"Women Who Obey Seldom Make History."
Reply With Quote
  #16 (permalink)  
Old 11-15-2007, 10:30 PM
WIB WIB is offline
Junior Member Photobucket
 
Join Date: Sep 2007
Location: Somerville, Massachusetts
Posts: 180
Images: 1
Thanks: 0
Thanked 2 Times in 2 Posts
WIB is on a distinguished road
Does worm tea count as fertilizing? -- Bill
Reply With Quote
  #17 (permalink)  
Old 11-15-2007, 10:35 PM
WIB WIB is offline
Junior Member Photobucket
 
Join Date: Sep 2007
Location: Somerville, Massachusetts
Posts: 180
Images: 1
Thanks: 0
Thanked 2 Times in 2 Posts
WIB is on a distinguished road
The usual doctrine that I've read is "weakly, weekly," usually meaning half- or quarter-strength of any old fertilizer. I've read that people like me who use collected rain water should add some tapwater from time to time to make up for the relatively low levels of calcium in fertilizers. I have wound up most fertilizing less than weekly and can't tell whether it makes a difference. Fertilizing certainly hasn't killed any of my plants. The ones I have in PrimeAgra (I forget the generic term, HECA?) I assume will require fertilizer. -- Bill
Reply With Quote
  #18 (permalink)  
Old 11-15-2007, 11:32 PM
kmarch's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Melbourne Australia
Posts: 12,937
Images: 1
Thanks: 4,192
Thanked 5,449 Times in 3,014 Posts
kmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond repute
I should have added to my previous post that fertilizing is not necessary. I don't fertilize and my plants do ok.
Reply With Quote
  #19 (permalink)  
Old 11-16-2007, 02:05 AM
Junior Member
 
Join Date: Nov 2007
Location: Tampa,Fl
Posts: 24
Images: 13
Thanks: 0
Thanked 0 Times in 0 Posts
missmegan is on a distinguished road
Fertilizer

I have two types of fertilizer and I was just wondering if one is better than the other. One is schultz and the other is green jungle.
Reply With Quote
  #20 (permalink)  
Old 11-16-2007, 03:54 AM
kmarch's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Melbourne Australia
Posts: 12,937
Images: 1
Thanks: 4,192
Thanked 5,449 Times in 3,014 Posts
kmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond repute
When I was fertilizing I used aeveral different brands. My experience was that the brand didn't matter, what mattered was the content of the fertillizer. If you look on the container you'll see 3 numbers, usua;;y somethign like 20-20-20 or somethign like that.

1) what are those numbers?
2) What kinds of orchids are you fertilizing?
Reply With Quote
  #21 (permalink)  
Old 11-16-2007, 09:24 AM
OrchidArmyWife's Avatar
Junior Member
 
Join Date: Aug 2007
Location: Fort Drum, NY
Posts: 34
Images: 14
Thanks: 0
Thanked 0 Times in 0 Posts
OrchidArmyWife is on a distinguished road
thanks all

the info that you have given me is great and it helps me understand alittle more about all the different types of fertilizer, so now just to make up my mind. The onl ones that i have that aren't fairing to well are the paph's can't really figure them out, but my phals and catts are blooming its just the paph's leaves just don't look right some look as if they are dying but have new leaves coming out. Those are my hubby's so I have to make them nice like mine..LOL But thanks again for the advice.

OAW
Reply With Quote
  #22 (permalink)  
Old 11-16-2007, 05:07 PM
kmarch's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Melbourne Australia
Posts: 12,937
Images: 1
Thanks: 4,192
Thanked 5,449 Times in 3,014 Posts
kmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond reputekmarch has a reputation beyond repute
Quote:
Originally Posted by OrchidArmyWife View Post
The onl ones that i have that aren't fairing to well are the paph's can't really figure them out, ..... its just the paph's leaves just don't look right some look as if they are dying but have new leaves coming out.
Can you explain in more detail which leaves are dying and where the new leaves are soming out?

Paphs are sympodial orchids which means they grow a new growth, bloom off it then start another new growth from the base of the plant just like a Cattleya. After a few new growths the old ones die off. Even the newer active growths will occasionally loose an old leaf. None of this is anythign to worry about.

Do you have a good culture sheet on Paphs?
Reply With Quote
  #23 (permalink)  
Old 11-16-2007, 05:39 PM
mbasden's Avatar
Member
 
Join Date: Sep 2007
Location: I live in Beulaville, North Carolina,
Posts: 100
Thanks: 0
Thanked 0 Times in 0 Posts
mbasden is on a distinguished road
I've used a product called Algoflash with great results. I try to fertilize at least once a week during new growth in the summer. But I found what works well is to completely soak the plan to remove a lot of residual salts from the plant roots and then fertilize.
Reply With Quote
  #24 (permalink)  
Old 11-17-2007, 12:03 AM
Junior Member
 
Join Date: Nov 2007
Location: Tampa,Fl
Posts: 24
Images: 13
Thanks: 0
Thanked 0 Times in 0 Posts
missmegan is on a distinguished road
Fertilizer

I have two fertilizers but I was wondering which is better. One is Schultz and the other is Green Jungle. Is there another one that is better than these two? It is for my 4 dend., 1 catt. and 2 phal.
Reply With Quote
  #25 (permalink)  
Old 11-17-2007, 12:42 AM
jay's Avatar
jay jay is offline
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Aug 2007
Location: Palm Springs, CA ; Zone 15
Posts: 2,919
Thanks: 298
Thanked 743 Times in 329 Posts
jay is on a distinguished road
More important is what is the mix of NPK (Nitrogen Phosphate Potassium) as different stages of life take different amounts of fertilizer. These can be found as three numbers in a row like 7-9-5 or 7-7-7 or 7-9-5.

The plant will need more nitrogen during growth and more phosphate during flowering. A good balanced fert. like a 20-20-20 would be a good balance.

I am sure someone can add to this and explain it better.

Jay
Reply With Quote
  #26 (permalink)  
Old 11-17-2007, 02:28 PM
Junior Member
 
Join Date: Nov 2007
Location: Tampa,Fl
Posts: 24
Images: 13
Thanks: 0
Thanked 0 Times in 0 Posts
missmegan is on a distinguished road
Sorry about the double post, I didn't know where my thread went. The green jungle is 1-0-1, the schultz is 19-31-17, and I have an all purpose one that is 12-4-8. I have 3 dend. in flower, and then 1 dend. and 1 catt. not blooming.
Reply With Quote
  #27 (permalink)  
Old 11-17-2007, 06:04 PM
Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Sep 2007
Location: Central New Jersey
Posts: 1,471
Thanks: 0
Thanked 387 Times in 320 Posts
11Orchid126 is on a distinguished road
Missmegan, there's nothing wrong with alternating the fertilizers, one time the Green Jungle, one time the Shultz's. Or perhaps two times the Green Jungle, one or two times the Shultz's, etc. Remember that the den's don't like a lot of nitrogen, nor do plants about to set spikes.
Reply With Quote
  #28 (permalink)  
Old 11-17-2007, 09:56 PM
pikevi's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Ontario,Canada
Posts: 2,766
Thanks: 0
Thanked 11 Times in 10 Posts
pikevi is just really nicepikevi is just really nicepikevi is just really nicepikevi is just really nicepikevi is just really nice
I think amongst three ,potasium (K) is the limiting factor. Any amount of Nitrogen (N) or Phosphrous/phosphate (P) /(P2O3) would not be of much use without K. K is essential for synthesising protein and and other food (metabolism).

They also maintain the water contents of the cells or turgidity ( Not unlike in Humans).

Both Phosphorous (phosphates) and nitrogen can only be metabolised in the presence of potassium ( unlike in humans where it is MAINLY used for muscle contractions , especially heart muscles).

I use two types of Fertilizers for my orchids. One is Schultz orchid food-19:31:17 and PlantProd Orchid fertilizer- 25:10:10. Both have trace elements added to them.

So far they have worked well for me.
__________________
****
**** " The good person increases the value of every other person whom (s)he influences in any way" ****
Reply With Quote
  #29 (permalink)  
Old 11-17-2007, 11:02 PM
PhalPal's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Apr 2007
Location: Placentia, Orange County, Southern California, USA
Posts: 4,539
Thanks: 745
Thanked 682 Times in 481 Posts
PhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the rough
Green Jungle is 1-0-1??? Would it have any effect at all??
__________________
"Women Who Obey Seldom Make History."
Reply With Quote
  #30 (permalink)  
Old 11-17-2007, 11:38 PM
pikevi's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Ontario,Canada
Posts: 2,766
Thanks: 0
Thanked 11 Times in 10 Posts
pikevi is just really nicepikevi is just really nicepikevi is just really nicepikevi is just really nicepikevi is just really nice
I think without phosphates the energy obtained by photosynthesis cannot be tranferred. I believe it is required for the oxidation/reduction of the chlorophyll by which the light energy is xferred /transformed into chemical energy.. or something like that
__________________
****
**** " The good person increases the value of every other person whom (s)he influences in any way" ****
Reply With Quote
  #31 (permalink)  
Old 11-18-2007, 12:05 AM
PhalPal's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Apr 2007
Location: Placentia, Orange County, Southern California, USA
Posts: 4,539
Thanks: 745
Thanked 682 Times in 481 Posts
PhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the rough
My premise is that all chemical reactions and therefore life in general are synergistic; it makes no sense to me to delete any one component of the three mandatory building blocks of plant processes.
__________________
"Women Who Obey Seldom Make History."
Reply With Quote
  #32 (permalink)  
Old 11-18-2007, 12:59 AM
pikevi's Avatar
V.I.P Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Feb 2007
Location: Ontario,Canada
Posts: 2,766
Thanks: 0
Thanked 11 Times in 10 Posts
pikevi is just really nicepikevi is just really nicepikevi is just really nicepikevi is just really nicepikevi is just really nice
Your point hit home!

Thank you.
__________________
****
**** " The good person increases the value of every other person whom (s)he influences in any way" ****
Reply With Quote
  #33 (permalink)  
Old 11-18-2007, 01:26 AM
Hummer344's Avatar
Executive Senior Member
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Jun 2007
Location: San Jose, CA
Posts: 1,315
Images: 14
Thanks: 1
Thanked 728 Times in 277 Posts
Hummer344 is on a distinguished road
Whewwwwwwww. every one has an opinion. If you ask a group rosarian how to prune a rose, each one will have a different way. Every gardener has their own way to grow just about anything. Orchids for me are no different. I fert. infrequently. When the feeling hits me. Less during the winter. I must say I used a growth formula this spring & had good results. I changed fert. Maybe that was the key. Something a little different and my orchids liked it. Lets see if they bloom for me this spring.
Reply With Quote
  #34 (permalink)  
Old 11-18-2007, 01:34 AM
PhalPal's Avatar
V.I.P Member Photobucket
PhotobucketPhotobucketPhotobucketPhotobucket
 
Join Date: Apr 2007
Location: Placentia, Orange County, Southern California, USA
Posts: 4,539
Thanks: 745
Thanked 682 Times in 481 Posts
PhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the roughPhalPal is a jewel in the rough
I'd be interested to know if you have better results having fertilized. I am a very casual fertilizer; it's not a big deal to me. Sometimes I do wonder if my plants would do better if I were more diligent and consistent about it.
__________________
"Women Who Obey Seldom Make History."
Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
fertilizing with Nettle water jernej Orchid Care Cultivation 6 11-12-2007 12:37 PM
Fertilizing with Seaweed Extract Miki Orchid Care Cultivation 15 10-04-2007 01:40 PM
Stop fertilizing Nobile-type Dendrobiums jerrymeola Newbie Questions 40 09-22-2007 01:47 AM
Fertilizing your House plants Dave Other Plants 0 10-10-2005 10:20 AM






Free Vote Caster from Bravenet.com Free Vote Caster from Bravenet.com


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.0
Orchid Forum

vBskin developed by: CreationLab