From

Location

Message

Date Posted

Germany

Now her are my results :
Analysis (ppm) Result Interpretation comments
pH 7,7 High
Phosphorus 54 slightly low
Potassium 509 normal
Magnesium 134 normal
Calcium 5558 High
Sulphur 3 Very low consider treatment
Manganese 139 normal
Copper 7,1 normal
Boron 1,94 slightly low cons.treatment
Zinc 13,1 normal
Molybdenum 0 Very low low priority
Iron 364 normal
Sodium (Na) 22 Very low not a problem
CEC ( meq/ 100g) 12,9 slightly low
org. matter ( %) 3,3 normal


Some results are not really expectable, the surrounding corn field and cherry orchard are about 10 times higher in phosphorus ( i think due to different analysis method between UK and German Lab )( but mycos probably love that lol ) and pH on that places is about 7,2

Also I spread about 15 cbyard cow manure and 15 cbyard ( 12 cbm) compost and 4-5 cby liquid cow manure on that patch ( 6000 - 8000 sqft) this winter. Its a loamy sand, quite sandy, but I expected higher organic matter. ( althoug I made the sample to full plowing depth, 12 inches)

Any comments appreciated !

4/9/2009 4:32:23 PM

Germany

Special questions :
I plan to spread potassium sulfate or magnesium sulfate or the mix, I think in northamerica its called K-Mag ( 30K,10 Mg)
what type, how much?
That would also raise sulfur levels.
I bought 130 lbs gypsum before analysis, I wanted to raise Ca and sulfur. Sulfur would be okay, but Ca is already high.
Would surplus Ca result in a higher leaching out of other cations, ( K, Mg) ?

And thats the questions for the experts or freaks : CEC is analysed as 12,9 meq/100g
but when i convert the ppm in meq/100g and add up the results for K, Mg, Ca,and Na I come to 30,2 meq of cations/100g soil ?

Thanks
Benny

4/9/2009 4:33:39 PM

Nova Scotia

there's only one type of k-mag I'm aware of. I'd use around 10-25kg bags on the 7000sq' that should this should help PH, magnesium calcium ratio and sulphur, to a degree.
At this point adding the Gypsuim will make your MAG/CA ratio worse. some kelp meal would help your Boron, Iron, OM and Phosphorus. If you can get the tonne bags I would get 2. others may disagree but thats what I would do.

4/9/2009 8:33:11 PM