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cultivating basil beds at sole food, 2012. |
We try to reduce weed pressure at the farm by using the stale seed bed technique. Rather than plant directly into a prepped bed, we allow a bed to sit for a week or two after being turned/amended so that any weed seeds germinate. We then cultivate the bed just before seeding using a collinear hoe. The short bladed tool has one sharp edge - that edge passes just below the surface of the soil and slices through all the germinated seeds when the roots are in the white thread stage. We cultivate before seeding/transplating and then try to cultivate again every few weeks in between the plants. This works with plants that have 4" (or more) in row spacing or between rows (beans, kale, chard, collards, summer squash, tomatoes, etc.) The hoe doesn't work for crops that are more densely planted, especially those done with a pinpoint seeder or that are broadcasted. Those got a good old fashioned hand weed once the first leaves came up. This method also doesn't work for weeds that are deep rooted - like our seemingly indestructible bindweed. Bindweed usually just takes constant hand weeding to try an keep it under control.
The students really love using the collinear hoes. Any detailed task that requires a specific tool yet is easy to master works really well with students. During the summer, there was no shortage of students who wanted to cultivate.
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A student's collinear hoe - crafted in welding class. |
This spring I worked a lot with a grade nine student that was struggling with a recent move to the school. It was a challenge to connect and we were trying different ways to engage him in his classes. He showed an interest in welding and so the horticulture teacher gave him the project of designing and welding his own garden tool. One morning I was working with the senior class starting trays of summer squash in the greenhouse and this student came in to the class beaming from ear to ear holding his creation. A grade twelve student recognized it as a collinear hoe and asked him where it came from. "I made it, " he said. The senior students were completely impressed. They gathered around the tool and checked out the design and welding. One said he couldn't believe it, "it looked like it came from a store." This student doesn't get a lot of praise in school, and most attention he usually receives from both teachers and students is negative. And here he was, on the receiving end of some genuine admiration and respect from these senior students. A perfect moment. For the rest of the season, whenever we would take the tools outside to work, this hoe was always the first to be claimed - it was the students' favourite tool.
Works real good, too.