The second two photos are of our garden as of early July. In the foreground are the three sisters, corn, squash and beans. Then peas growing up a trellis, tomatoes hidden behind the peas, then a couple beds of parsnips and carrots, many of which didn't germinate, and then tomatoes in pots, plus a couple of pecan trees in a pot. The corn, peas and tomatoes are actually growing pretty well, squash and pumpkins are growing but late and a little slow, and the few beans that germinated are not growing very fast.
The second photo shows the other half of the garden, somewhat shaded by, and exposed to drippings from, two Ponderosa Pines and a few Gambel Oaks trees. In the foreground are potato plants coming up fast through a wheat and pine straw mulch, then a bed of onions, doing pretty well in the pine mulch, along with turnips and rutabegas, up and showing good color but growing really slowly, then a bed of beets growing even slower than the turnips, then a bed of swiss chard, mustards, radishes, mustard greens, kale and lettuces, all growing pretty slowly.
We talked to the agricultural extension office about the slow growth, and they think it is caused by our use of pine straw for mulch, which they say contains tannins and turpines, both growth inhibitors. We've grown in pine mulch before though in Maine, more successfully than this, and have read studies that indicate that once pine needles have turned brown, they lose the growth inhibitors and make a great, beneficial fungus attracting mulch. We suspect it might be that either there were fresher turpines and tannins in the soil when we planted (since we cleared an oak grove, sheet mulched it, and immediately planted seeds in it), or these compounds are dripping off of the trees overhead. We're getting slow growth in the carrots and parsnips and brussels sprouts in the other half of the garden that isn't shaded by pines or oaks, but was likewise planted in freshly cleared ground and mulched with old pine needles.
We're clearing a garden expansion soon, and will sheet mulch, add lots of manure, some rock phosphate and wood ashes, plant a cover crop of oats and clover, and then let it winter over and see how things grow in it next spring. It will be interesting to see what happens.
No comments:
Post a Comment