so, time to update this thread a little...
oh, and for the avoidance of doubt, I know this is a long thread, but many of the things that get posted on page 3 or 4 of a thread were already covered on pages 1 and 2... so please take the time to read the whole thing if you can - thanks.
We've had 2 soil samples back from the lab according to the agronomist service. The pH is pretty low on both fields... 5.3 on one, and 5.6 on the other. Not a surprise given the water sample testing I posted previously. The agronomist recommended 1 tonne per acre of lime to rectify. The first 2 things I raised with the agronomist on this point were 1) We want to make sure the lime is locally sourced... not imported because it's cheap, and 2) we want to understand how the pH change might effect our wildflower mix.
The last bit really stumped them... the general response was "well if you've got a corner of your land where you want to leave the grassland untouched for subsidy or whatever, then just don't lime that bit...". I was less than impressed, but it takes time to work on these relationships and extract the knowledge in a form that fits our plans. The only thing I can think of right now is that we perform an assessment of all of the species present during this coming season, and check the growing conditions for each of them with someone like the RHS. We'll be getting the hay analysed this year too.
One of the other things to come out of the tests was that our NPK levels seem to be fine for grazing land. This is what I'd hoped for, but had no idea how reasonable that hope was.
Other smaller factors were that the soil was slightly down on coper, and slightly down on sulphur. Apparently the low sulphur thing is a nationwide issue, now that it doesn't come down in the rain as often (less dirty industry).
We have to wait for the full-spectrum survey on the biggest field to come back, and for the remaining broad spectrum samples. I suspect that *most* fields will show the same thing, as they've all reached a natural equilibrium after 50 years of almost total neglect.
Overall, pretty happy... We did make a mistake with our grazing allocation this year, which we're suffering through, but a bit of new hay and half a bag of sugar beet per day is keeping the ewes healthy and happy, so I think we've got off lightly there. If the results follow through to the hay crop, then we'll be looking good for our low-input system.