Soil Preparation and Analysis
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Subject: Another soil test
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From
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Location
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Message
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Date Posted
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Jorge |
North Smithfield, RI USA
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PH = 6.8 buffer PH = 7.1 N: NO3-N = 37 ppm NH4-N = 2 ppm Organic matter: 17.7 % P = 258 K = 262 Ca =5844 Mg = 396 cation exch cap 46.1 meg/100g percent base saturation K = 2.1 Mg= 9.8 Ca=88.2 Miconutrient levels all normal Extractable Al: = 1 ppm ( soil range: 10 -250 ppm ) lead level is normal
Any input would be appreciatted !!! Thanks ---- George Duval
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4/12/2006 6:07:19 PM
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anaid_tecuod |
SF Bay Area, California
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Wow - first time I've seen Ca this high relative to K and Mg. High Ca can cause problems with availability of trace minerals. My literature indicates the optimum ranges for cationic elements(base saturation) is 5-7% K, 10-15% Mg and 70-80% Ca. To bring your soil into better balance I would increase K some. Use 1 pound of Mined Sulphate of Potash per 100 square feet to bump it up a little. Lay off the lime and gypsum for a few years....
Your N is also low, should be more like 60 PPM. I would probably opt to use a mild shot of urea prior to planting. After the soil warms up plenty of N should become available because of the high OM reading.
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4/12/2006 8:52:01 PM
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Tremor |
Ctpumpkin@optonline.net
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Ditto....leave well enough alone this year. This report looks pretty good as it is.
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4/13/2006 10:11:52 AM
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Alexsdad |
Garden State Pumpkins
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Cation Exchange 46.1!!! Yikes!! I'm still trying to get to 20! LOL GrowEmBig!
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4/13/2006 6:47:06 PM
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Tremor |
Ctpumpkin@optonline.net
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CIC of >20 in RI is very unusual.
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4/13/2006 7:14:27 PM
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hoppy |
berkshire M.A.
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IS there a max or to high CEC ? Tremor
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4/13/2006 9:10:35 PM
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night |
Ohio
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How do you bring up cec?
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4/14/2006 12:36:09 AM
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Tremor |
Ctpumpkin@optonline.net
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Very high CEC usually indicates a clay soil while a low CEC indicates sand. Since it is easier to add nutrients than oxygen, I'll take a sandier soil over clay all day.
Raising CEC.....add organic matter since adding clay is counter productive. Our roots benefit from oxygen & drainage more than fertilizer which we can always add safely in season if we use good sense when selecting source materials & rates.
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4/14/2006 7:11:46 AM
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Jorge |
North Smithfield, RI USA
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thanks for the info everyone !
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4/20/2006 6:19:56 PM
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Total Posts: 9 |
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