Jump to content
  • Sign Up

odd leaves


Recommended Posts

i've got a lot out of this thread. makes me look like a dumbass, but i got a lot out of it...

 

No such thing as a stupid question if you don't know the answer to it. lol

 

Here's something from http://www.acs.edu.au/info/info001.asp

Australian Standards have been established for potting mixes (No. 3743 1989). It is now possible to buy packaged potting mixes that bear the Australian Standards Mark. This indicates that the mix is of excellent quality. This quality is guaranteed by regular testing both at the manufacturing plant and by independent laboratories under the supervision of Standards Australia.

 

There are two Australian Standard potting mix grades: Regular and Premium.

Both mixes must be freely draining, while capable of holding a good supply of water. Both must be easy to rewet if they dry out. They must be free of toxins and have a pH in the range 5.3 6.5.

Both mixes should contain a full range of trace elements in sufficient quantities to last for at least one year of plant growth, as well as ample initial amounts of phosphorus, calcium, magnesium and sulphur.

Regular mixes are not required to contain any soluble nitrogen, however, the worst of their ability to 'draw down' fertiliser nitrogen will have been removed. Premium mixes must contain soluble nitrogen and be able to continue providing enough soluble nitrogen for at least one month of good plant growth. Premium mixes generally contain slow release fertiliser and will have been made from high quality materials such as thoroughly composted pine bark and peat.

Within both the regular and premium gradings the Australian Standards lists properties for a range of specialist mixes for use with such plants as seedlings, orchids (cymbidium), acid loving plants, and plants that prefer low phosphorus.

Potting mixes formulated to Australian standards may appear to be initially more expensive than other mixes, however, their reliability and quality make them less expensive in the long run. There are also available on the market some potting mixes that state that they conform to Australian Standards, but which do not carry the Standards Mark. These products have not been tested by Standards Australia so there is no guarantee of the quality of the mix. For this reason potting mixes that carry the Standard Mark should be preferred. The names of potting mixes that have been approved to carry the Standards Mark can be obtained from the Standards Association in Australia.

 

How about starting a grow thread monkeyboy? Or have I just missed it? :wave:

 

Keep us updated on their progress, and I'd highly recommend using a mild foliar spray once a week or so to help alleviate the symptoms in the meanwhile, if you're not already doing so.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

By using the community in any way you agree to our Terms of Use and We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.