Soil analysis

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VeggieVirgin

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  • Location: Mid Wales
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Soil analysis
« on: June 02, 2011, 16:15 »
Our local farmer was getting some soil samples done so we chucked in a bag of our raised bed soil (a mixture of compost and topsoil) too.

The results say:

pH 7.0 (described as "adequate")
Phosphorus 57 ppm (guideline 26): index 4.4, possible interference on availability of Cu,Zn,Fe, K
Potassium 446 ppm (guideline 121): index 4.2, possible interference on availability of magnesium
Magnesium 235 ppm (guideline 176): index 4.7, adequate level

Should I be doing anything to improve availability of the trace elements? And if so, what?

Most things seem to be growing reasonably well, except for our climbing beans and courgettes, which are looking a bit yellow (although that may be due to them being planted out too early, and having to endure a period of cold and windy weather).

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Trillium

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Re: Soil analysis
« Reply #1 on: June 03, 2011, 03:12 »
The data is too scientific for me, perhaps someone else knows what it means. But the 7.0 shows a mid pH range, possibly a bit to the alkaline side.

Courgettes are very sensitive to cold weather and this is not doubt why they're not looking too well. Beans also prefer to start out warm and when mature they can take a bit of cold, but not vice versa. Beans and courgettes both appreciate rotted manure so if you have any or chicken manure pellets, they'll appreciate the feeding.

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Vit

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Re: Soil analysis
« Reply #2 on: June 03, 2011, 04:30 »
Neutral pH soil, lots of potassium - did you used ash? Try do not use it for a year. Have no idea about drainage on your plot and how much sand in the soil, but potatoes and carrot should be very good

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Salmo

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Re: Soil analysis
« Reply #3 on: June 03, 2011, 08:55 »
Your sample is typical of garden soil samples.

The pH is about right so you need no lime.

 Nutrient levels are high because gardeners tend to be heavy handed with fertilizer.

You could get away with no fertilizer except nitrogen, which quickly leaches out of the soil, for several years. If there is a high proportion of manure it may have distorted the sample results.

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VeggieVirgin

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Re: Soil analysis
« Reply #4 on: June 03, 2011, 13:33 »
Thanks for replies.

When we made our raised beds, we bought in thirty tons of mixed compost and topsoil. The compost was made from food waste. It's had no additional fertilizer on it.


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