We have never tested the soil here ever since we moved in. I think that it is fair to say that our success with growing vegetables has been “variable”. Some, although not all of it, maybe due to the quality of the soil. It is time to do some tests!!
Jo found a kit online that contains enough chemicals for up to 40 individual tests. Given that we are growing vegetables in a number of different locations on the property, it makes sense to do a number of tests in different locations.
The tests are easy to do once you get the hang of it. There are four separate tests: PH, Phosporous (P), Potassium (K), and Nitrogen (N).
For the PKN tests, the results all follow the same categorisation:
4 = Surplus
3 = Sufficient
2 = Adequate
1 = Deficient
0 = Depleted
So we tested four different locations where we are growing vegetables. The results are shown below
Left Veg Patch
Right Veg patch
With the exception of the greenhouse, all of the soil is a little bit acidic and can do with being raised. Ideally, the PH should be between 6 and 7. All of the samples, including the veg patch where we have been growing peas and beans, is indicating that it is low in Nitrogen.
I am not sure how accurate these test kits are. Having read the reviews for various test kits on Amazon, the feedback on these kits seems to be “mixed”.
I spotted some seed potatoes to harvest at Christmas time. But we didn’t have enough space in the current vegetable. However, one of the previous sets of potatoes really seems to be struggling and I decided to clean one row of these to make way for a new planting of Christmas potatoes.
So the poorly performing potatoes were the Second Earlies – Nadine. The main crop – Golden Wonder – are doing really well. However, just because we have a lot of greenery doesn’t mean that we have a lot of potatoes. But we will have to see. I decided to sacrifice one row of Nadine to make way for a row of Maris Piper.
Having decided that the Nadine potatoes weren’t doing very well, the 5 or 6 plants that I dug up produced quite a few potatoes – all small, but in good condition.
The two sets of potatoes seem to be doing well and I reckon the first crop (Golden Wonder) should be ready by Mid August – if the estimate of 16 weeks is anything to go by! They have been in the ground for 10 weeks now. I couldn’t really have planted them any earlier because of the frost. There’s lots of green growth above ground, but I wonder how much growth there is underground!
The other set (Nadine) seem to be quite a bit behind the first crop. This is a bit surprising as both were planted at the same time and they should take the same about of time to mature.
In hindsight, I think the potatoes plants were probably planted too close together. Re-reading the guidance – they should be 12 inches apart and 30 inches between the rows. Next year I think it should be one variety in this plot with three rows of better spaced plants.
The space to the right in the photo is occupied by some beetroot plants (variety: Bolthardy). I sowed them originally in pots in the greenhouse and put them into this spare space above a week ago. some of the plants looked a bit sorry for themselves when first transplanted, but it looks like all but two will survive.