|
Soil Preparation and Analysis
|
Subject: Soil Analysis
|
|
From
|
Location
|
Message
|
Date Posted
|
Jordan Rivington (JRO) |
Windsor, Ontario, Canada
|
Hopefully this posting will help everyone who will be posting the samples and looking for answers as they prepare their soil for next year.
Instead of posting many samples and asking what should be done, perhaps we can establish a set of ranges for all the things that will be in our soil and that are considered optimal for AG growing.
Here is a list of what my tests cover (from A&L), lets have some input about what a good "low" and "high" range for each with respect to AG.
OTHER Organi Matter (OM) - % Potential for Hydrogen (pH)
MACRO (MOST IMPORTANT) Phosphorous (P) - ppm (bray/bicarb) Potassium (K) - ppm Magnesium (Mg) - ppm Calcium (Ca) - ppm Sodium (Na) - ppm
MICRO (LESS IMPORTANT...NOT UNIMPORTANT) Sulphur (S) - ppm Zinc (Zn) - ppm Manganese (Mn) - ppm Iron (Fe) - ppm Copper (Cu) - ppm Boron (B) - ppm Aluminum (Al) - ppm
Some labs make recommendations for veggie gardens, which require much different levels than AG.
If anyone wants to add some general rules such as 20lbs of 90% Sulphur over 1000sqft will bring the pH. down 0.3 then that would be a valueable thing too.
|
10/9/2007 1:18:00 PM
|
Jordan Rivington (JRO) |
Windsor, Ontario, Canada
|
I will get things started.
I think an OM of 10-12 is optimal pH. is best between 6.8 and 7.4
|
10/9/2007 1:19:22 PM
|
Jordan Rivington (JRO) |
Windsor, Ontario, Canada
|
What about
Ca 3000 Mg 300 K 150
Agree?
|
10/9/2007 1:36:42 PM
|
Big Kahuna 25 |
Ontario, Canada.
|
Optimal fungie growth Phosphorous (P) = < 100ppm
|
10/10/2007 7:45:57 PM
|
jerrynl |
Dutch
|
I would check for this company. They are dutch and specialized in <a href="http://www.terricola.nl">soil analysis</a> (<a href="http:/www.terricola.nl">bodemverbetering</a>).
|
10/11/2007 8:32:31 AM
|
Jordan Rivington (JRO) |
Windsor, Ontario, Canada
|
If only I could speak dutch...lol.
|
10/11/2007 11:52:30 AM
|
Jordan Rivington (JRO) |
Windsor, Ontario, Canada
|
Russ, here is a potentially dumb question. Is that the beneficial types of fungi....we want less that 100 or make sure to stay above that?
Im sure some fungi are bad. Ph promotes root growth, so what say you about that? LOL.
|
10/11/2007 11:55:08 AM
|
Bohica (Tom) |
Www.extremepumpkinstore.com
|
JRO, I dont mean to sound harsh, but where are you pulling these numbers from? Different soil types require different percentages:
The Albrecht Formula, with adjustments for soil texture class
Light or sandy soils (CEC <5) - % Ca 60, % Mg 18-20, % K6-8, % Na<3, % H 10-15 Medium or loamy soils (CEC 5-10)-% Ca 65-70, % Mg 10-15, % K 3-6, % Na<3, %H 10-15 Heavy or clay soils (CEC >10)- % Ca 68-75, % Mg 10-12, % K 2-5, % Na<3, % H 10-15
There is no set perentages....
|
10/12/2007 7:31:07 PM
|
Jordan Rivington (JRO) |
Windsor, Ontario, Canada
|
You don't sound harsh. My wife sometimes sounds harsh, lol, but thats nothing. I am all about the proper info. My soil is probable med. I need to look more into the Albrecht, though much of what I hear says that they are only minimums.
|
10/13/2007 8:05:51 PM
|
Brooks B |
Ohio
|
Tom, thanks for that formula!
|
10/18/2007 7:36:00 PM
|
Big Kahuna 25 |
Ontario, Canada.
|
Jordan, today's research articles indicate that P levels should be below 100 ppm. I have seen studies that suggest colonization begins to decrease above 50ppm.
Once your patch comes into good organic production the problems will slowly fade away. It is a myth that bad fungi and bacteria can thrive in a healthy organic patch. I have seen this written over and over again here on the message boards, it is simply not an issue in a healthy diverse aerobic patch.
The new trend will be to include rhizobacteria and mycorrhizal fungi inoculants to the soil in the coming years.
|
10/18/2007 8:19:45 PM
|
--- |
Hayward, CA
|
Hi, Im trying to make sense of my soils report but they sent me the results in lbs per acre and I'm afraid it does't look the same as what you show. How can you convert lbs per acre to parts per million or percentages? Is it different for each element? Or should I ask A&L Labs to send it in a different format? The om is 3.3% but what does the ENR 110 mean? I understand the pH as 6.9, but that is the only other thing on here I can understand.
|
10/18/2007 10:32:58 PM
|
Bohica (Tom) |
Www.extremepumpkinstore.com
|
Puter, To convert Lbs/A to ppm, divide by 2. Tom
|
10/19/2007 6:17:11 AM
|
Total Posts: 13 |
Current Server Time: 9/2/2024 9:24:21 AM |
|