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Subject:  Soil Amendments

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evert626

Michigan

I am a new grower to the AG world and just cut a new piece of ground (1625 sq ft loamy sand). Soil tests (Western Labs) came back as follows:
Om: 7.1%
PH: 7.0
N: 48ppm
P: 21ppm
K: 143ppm
Cal: 1667
MG: 252
Na: 31
Boron: .6
Cu: 1.1
Mn: 5
Fe: 47
Sulfur: 8
Zn: 2.1

I have used the langley to come up with the folowing recommended amendments:

50# MONOPOTASSIUM PHOSPHATE 0-52-34
10# Potassium Sulfate - Sulfate of Potash - Organic
1# Copper sulfate
5# Manganese sulfate 32%
2 Liquid Gypsum (quart bottle)
2# zinc Sulfate
25# Epsom salts
20# Sul-Po-Mag 0-0-21.5
0.5# Borax

This would get the ratios to if calcs come out correct:
ca:mg 6:1
ca:k 14:1
Ca:P 16:1
p:zn 16:1
p:mn 7:1
p:cu 41:1
zn:cu 3:1
mn:zn 2:1
mn:cu 6:1
k:b 301:1
mg:k 3:1
Ca:B 2169:1
mn:fe 1:1.8


Looking for some expertise to see if this the right approach or other recommendations for amendment program. Also is the best time to get this in the ground this fall or next spring.

Thanks

9/17/2015 8:41:24 PM

Bry

Glosta

Ad the gypsum this fall, everything else next season, split it up to add through the season. Most of the additions will complex in the soul and lock up, so adding it closer to when then plant needs it is best. And if you haven't already add some compost this fall to improve the soil texture.
Retest in the spring.

9/18/2015 6:30:11 AM

Condo*

N.c.

If you added that much P there would be little reason to add mycorrhizal which many people are doing. 50 ppm P is considered a good level if you are going to utilize the mycorrhizal. Your B ppm looks a little low, as most people I think shoot for 2-3 ppm.

9/18/2015 7:45:23 AM

evert626

Michigan

Thanks. The P counters the myco at too high of levels? That is good to know as I do plan to utilize them in planting. Any favorite on a myco?

9/19/2015 6:41:52 AM

Condo*

N.c.

Full disclosure; I do not use mycos and my P was probably around 250 ppm this year. Others know better than I but my understanding is basically that the mycos are P miners. If the P in the soil is over 100 ppm then their is no need for a symbiotic relationship between plant and fungi. There are many different mycos and many different approaches to using mycos. I suggest checking out WOW products. That company, and their mycos product, has a solid record behind it.

9/19/2015 8:28:51 AM

Total Posts: 5 Current Server Time: 12/30/2025 11:47:37 PM
 
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