Greenhouse Improvements

I've been doing a few updates to the greenhouse. The house manufacturer sells wind/snow structural kits to make the frame stronger. These tie the vertical wall poles to the ground, keeping the poles from pulling out, while also preventing the "A" shape of the roof from spreading out. The previous owner of this greenhouse never had these but they were setup right next to another building. Our location is out in a field so I decided to add the extra reinforcements. 

The main anchor component is a 36" earth-auger that has to be installed at each reinforcement. For my driver, I used an extra 35mm wheel-bearing socket (for a long-gone vehicle I owned years go) with a couple tabs welded to it. The auger eye almost fits into the socket, and the ears go along the sides of the eye to turn it. This worked pretty well and a 1/2" impact gun installed each auger in about 45 seconds.

Then it's just drilling a hole in the pole and assembling the turnbuckle hardware.

Since the value of the greenhouse contents can be quite significant (nearly the whole spring planting, for example), we added some electronic monitoring. This device monitors the temperature and humidity in the greenhouse. It also monitors if the power is on and has a built in battery for sending alarms when the power goes out. 

It will call/text/email if parameters fall outside of the alarm ranges. The primary concerns are too cold in the winter/spring, and too hot (or too humid) in the summer.

The data-logging from the monitoring device really shows how well the greenhouse can capture the sun's energy. Yesterday, the high temperature outdoors was 28°F but the greenhouse got over 96°F in the afternoon because the sun was out for a little while. On a cloudy day it's not quite that good but it still runs at least 20°F higher than ambient.

Winter Weather Advisory

January provided some energetic winter weather this year. It's not uncommon for us to have ice storms in Iowa but the duration of this one was pretty impressive. Some flat surfaces appeared to have almost a half-inch!

Not too long after the ice, we got a couple rounds of really wet snow. It reminded me of a mountain landscape, with the coniferous trees bent down to the ground.

The greenhouse has been handling the snow very well. It's a A-frame or "gothic" frame shape so it has enough pitch that most precipitation slides off. 

The snow which slides off makes pretty big piles on the sides. As a preventative measure, I run along the sides with a snow-blower to make room. As you can see here, the snow was already deep enough to get up to the rounded part of the roof. I figure if I didn't get rid of it, the next snow would have nowhere to go.

Poultry prophecy in the cirrus clouds.

I looked out behind the chicken-coop a few evenings ago and noticed a large cloud formation which looked like a bird (over on the left) with a long tail (and maybe the bird's wing is on fire?). We've got 30 more hens on order so it seemed an appropriate display.

Almost planting time!

Soon the green-house will be running and we'll have our first plants germinating. Our supplies have nearly all arrived, including our three-row planter!

I'm excited to see how this works in the field. The front wheels provide drive to a chain on the side which is turning a shaft, running through all the planter sections. There is a little knife and a cover plow for each row. Apparently it's possible to hack/fit five rows on this unit if one purchases some spare parts to modify it. Out of a couple different varieties of micro planter available, this one is known to be least finicky about soil bed preparation.

The seed hoppers contain a wheel which is changed out for each different seed size/shape to be planted. There is a small brush and guide plate which are consumables. You can see the drive sprocket to the side of the wheel. The drive-ratio at the wheel chain can be changed to modify the seed spacing along the row. We will be using this planter for radishes and carrots initially. It can also be used for beans, peas, sunflowers and corn.

Here's one of our seed shipments. Corrine has been organizing these into folders by week. Each folder contains everything needed for that week, and instructions on what to do next. We're trying to apply lots of energy to "pre-work" and planning to that, during the high-labor part of the season, all we have to do is run to the plan.