kewl, but help a newb out ppm/ ec ??
I don't know so much about EC because it more popular in europe than america. Basically they use EC instead of ppm like the US. Electro conductivity measures a material's ability to conduct an electric current. You can use that to measure the strength of the fertilizer, the same way we use a ppm meter. I was sold on the idea of measuring EC instead of ppm over-night again, by Mandala Seeds website. Here's what it says;
What to watch out for
There are various other scales or measurement systems used to measure the EC. These are called CF (conductivity factor), ppm (parts per million), and TDS (total dissolved solids). North American growers tend to use ppm and European growers use EC.
The problem with these other measurement systems is that they are all based on the EC but the manufacturers then use their own system of conversion to convert the EC to ppm, TDS or CF. These conversions are not as accurate as when you simply measure the nutrient salts with an EC meter in the first place! This means that each tester/meter will give you a different reading. You cannot tell what the EC is when you use a TDS or ppm meter. You cannot even compare readings between a TDS or ppm meter from different manufacturers!
Other systems make it very difficult to provide advice and for growers to compare information on their fertilizing methods and dosages. Thats why we always recommend to purchase an EC meter and avoid this confusion. You can then easily follow our advice on fertilizing and you always get accurate readings.
If you already have an expensive ppm or CF meter that you want to keep using here is a conversion table for some popular meters
So every company's ppm meter is different in that it calculates pH differently. It seems pointless I guess, but to me it's another way to have more control over your garden, so I'll be implementing it as soon as I can get an EC meter.
I always mix my nutrients/additives in at a lighter dose, I've found that less is more if you know what I mean mate esp' with using the flowering additives. Does the nutrient co' your using have feeding charts available on their website?? I use CANNA nutes and use this chart as a guide to apply to my feeding shedule for example >>>
http://www.canna-uk.com/growguide
Yeah, I use House and Garden ans they have an online calculator ---->
http://www.house-garden.us/nutrient-calculator/
The calculator has been great really, I just forgot to adjust for the nutrients that are already in the soil, so I should've lowered the dosages a long time ago. There aren't HUGE toxicities present atm but some of the leaves margins are getting burned. Pretty much everything that eskobar said was a sign of over fertilization is visible in some of the fan leaves under the screen. I'm glad I got help before I killed my plants in like the last two week. That would SSSSSSUUUUUUUUUUUUUUUUUUCcckkkkkKKKKKKKKKK....
if i wanted to know the npk value of home made soil you guys know how i would go about that
The only thing I could think of is these little npk tester kits they sell at nurseries
http://www.horticulturesource.com/product_info.php?products_id=1926
beans WAKE up lol now i no why ya m8s with kev is it the lightweight in ya lolol just pissed n messing bro.
beans has skills and is a good lad how come you had grief before on riu? i carnt imagine that all you give out is good info and ya grow is niiice!
I'm actually a well seasoned asshole (well that doesn't sound right does it?).
lmao!