By Andy Williams.
Well, that’s the potato bed finally done. Remember that all I had to do was dig up that one last sheet of roofing metal and I’d be ready to build the no till bed? Well the metal sheet came out easily enough. The two more sheets of baling mesh I discovered while digging it out however took a good deal longer. Still, finally it was done and I was able to start barrowing manure out of the garage to build the first layer of the bed. Digging manure out of the garage always seems to take longer than planned because of all the plastic mixed in with it, but for a while it seemed to be nothing but manure for a whole glorious afternoon. I was able to blast through it quickly for once instead of picking over it, feeling the wet goat crap seep through my work gloves.
For the record, my hands have never been softer. I wonder if there’s a market for ‘Goat Shit Spa’?
Anyway, I was about halfway through covering the area with manure when it occurred to me that I could modify the bed structure to better suit the materials we had. A conventional no till potato bed is a thick layer of compost or reasonably rotted manure covered with a mulch such as straw or hay. The chitted potatoes are put on top of the compost, and the mulch is pulled together to cover them. The potatoes root down into the manure/compost and the tubers develop there. Generally the limiting factor with this technique is the depth of the layer the potatoes grow in. It’s often used as a technique to grow a staple food while transitioning from lawn to vegetable garden. The grass and weeds die under the thick layers of added materials, while the potatoes grow. What if you have a near limitless supply of manure to use though? We had a huge bale of spoiled hay to use up on this bed, far more than we needed to just mulch that small area. Our limiting factor is the small area of ground free of creeping buttercup, not the materials needed. I decided to see what would happen if I used a layer of manure, a layer of hay, then another layer of manure with a hay mulch over the lot.
I was spreading the manure I’d already barrowed out, when I went to move the wheelbarrow. I shoved the fork into the ground out of the way when I heard a thud that made my heart sink. I knew that sound. Buried roofing sheet. The area over it was already a foot deep in manure but there was no helping it. Digging it out took the rest of the morning. The new section of baling mesh I found while digging it out took a chunk of the afternoon. Still, by the time the light stared to fade to evening I had the whole bed completed. I’ve left most of the fence stone slabs in behind it to give it a little wind protection, and where the one is missing I’ve left a keyhole indent into the centre of the bed, so we can access the whole bed without having to step on it. Overall I’m rather pleased with it.
Where the raised beds have been built in the main veg garden, we have a serious problem with buttercup. We’ve decided to sheet mulch them with membrane until next year, by which time the buttercup should be dead. I still had some hay left, so next to the raised beds, I made some large mounds of mostly rotted manure and have mulched them with some of the hay. We plan to plant squash and pumpkins through the mulch into the manure compost, and train the plants out over the sheet mulch. That way we can actually get some kind of yield from the beds without uncovering them. That’s the theory anyway. We’ll see how it works in practice.