(817) 754-0465

It is currently Thu Dec 14, 2017 9:06 am

All times are UTC - 6 hours




Post new topic Reply to topic  [ 2 posts ] 
Author Message
 Post subject: Fertilizer ppm N from Any Fertilizer Formula
PostPosted: Mon Aug 28, 2017 3:36 pm 
Offline
User avatar

Joined: Fri Sep 17, 2010 7:52 am
Posts: 283
Location: Oak Island, NC
Folks that have been around for a while know of my long "campaign" to get folks to manage their fertilizing regimens through the use of parts-per-million nitrogen (ppm N), and my disdain for meaningless recommendations like "1/4- to 1/2 the recommended amount on the label". The former, when coupled with the frequency of application, allows you to know what you're doing and to truly control it. The latter is an undefined shot in the dark, and really offers no control, while pretty much helping the fertilizer manufacturers (who don't know diddley about orchids) to sell more fertilizer!

Manufacturers that cater to professionals routinely publish charts that give the mass of that formula needed for specified ppm N levels. When I sold fertilizers, I had those charts available with the specific product listings, but most producers and vendors of consumer brands either don't do that, or publish misleading info on their labels.

It's actually a pretty simple calculation, but... I just built a http://firstrays.com/nitrogen-mixing-calculator that will do it for you, no matter what the formula, whether you're mixing it up gallon-by-gallon (or liter-by-liter), or will be making concentrates.

_________________
Ray Barkalow, Orchid Iconoclast
Using science & logic to improve orchid growing


Top
 Profile  
 
 Post subject: Re: Fertilizer ppm N from Any Fertilizer Formula
PostPosted: Tue Aug 29, 2017 3:44 am 
Offline
User avatar

Joined: Fri Mar 22, 2013 9:05 pm
Posts: 135
Location: Fort Wayne, Indiana, USA
Thank you Ray for this information. This helps a lot!

_________________
Matt


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 2 posts ] 

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group