Showing posts with label knowledge. Show all posts
Showing posts with label knowledge. Show all posts

Aquaponics Strawberries

Yum.

I love strawberries, and spend way too much money each year in keeping the fridge stocked.

I cant get enough of them.

Here are some free strawberries  from the backyard.









Some are from the aquaponics system, and some from the dirt along the side of my house.

I planted a stack in one blue barrel grow bed, and a stack more in the ground along one side of my house.

The strawberries grown in the aquaponics system are always bigger and juicer. They also look better. Always big and perfectly formed. But Im not convinced they taste any better. In fact I think the ones out of the ground may actually taste better.

When growing grapes for wine, I understand you dont want too much rain as this makes the fruit bigger, but lowers the amount of sugars per lump of grape.

Or so Im told.

This might have something to do with why the strawberries seem to taste better out of the ground. The ground strawberries get watered once a day when its hot, and every couple of days if its not.

The aquaponics strawberries have as much water as they want when ever they want it.

Or...

It could have nothing to do with that. I cant be sure which went where, but there were two batches of strawberry plants. One batch was fully grown mature plants, and the other batch were all new runners. I seem to remember planting the runners in the aquaponics system because they were smaller, and I wanted to see if they would catch up to the others. But I also remember not doing that. I remember mixing them up so I would get a sample from each. I remember a few other contradictory things as well.

So... possible that they taste different.

But I think its going to prove to be water content.

I think Ill do some experiments with the runners from both batches to see if there is any difference when all plants are the same age. Both beds are producing runners, so I think I should know within a few months.

Another thing to try, might be to change how long the aquaponics plants have wet feet. I should be able to control very precisely how much water the plants are exposed to.

I have an electric tap from a sprinkler system, so I might try to make some kind of moisture sensor, and perhaps try letting their roots get almost dry before giving them more water. I have no idea if such a thing is even possible, so Ill find out.

Or...

It could be that the strawberries dont taste as good when they are hot. Very few of the fruit ever make it into the house. Most get eaten straight from the plant, and there is a huge difference between the temperature of the narrow, protected side of the house, and those grown in a hot house. Now that I think of it, I think strawberries grow well in places like England. Im not sure if England is called England or not, but that place thats sometimes called England seems to be the kind of place people grow things like strawberries.

Perhaps a hot house makes the fruit taste different.

Ill have to find some more information.

Im being very fussy here.

All the strawberries from my back yard taste much better than anything Ive ever bought from a shop. Shop strawberries are always under-ripe, and seem to be made of something other than strawberry.

Thats store bought on the left, and back yard grown on the right.

Even with this poor photo, you can see the difference.

I can also smell the difference.

And if you drop a store bought strawberry into a clear drink, you get a strawberry in a drink. But the back yard ones colour the clear drink strawberry colour.

I count aquaponics and dirt grown strawberries as a total success.




120 Things in 20 years - I think Il buy a second hand digital SLR camera so I can take better photos of strawberries and.
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Thinking Local knowledge


When I was in Papua New Guinea - Madang in particular (I think) Mum found some locals that were willing to let us borrow their canoe for a dollar or two per day. I was quite young at the time, and remember being scared when I could see the bottom, but completely relaxed when I couldnt.

That has baffled me for many years until I experienced a recent fishing trip near Port Pirie (South Australia). The clear waters brought on a vivid memory of the Medang canoe trips. The problem I was having was a fear of heights.The water was so clear, that I felt I was going to fall the thirty feet to the bottom.

Not such a strong sensation when witnessed as a grownup, but as a little kid, it was enough to scare.

The point of this is to introduce a story that will be wrapped up much more quickly than he introduction.

I nabbed a cowrie as a result of spending every day I could snorkelling. (sorry nature). It was a real treasure to me, and I was desperate to take it home to South Australia. It was only a few days before our departure date, and I had no idea how to get the now dead snail out of its home in time for a trip through customs.

A local kid offered a solution.

Juts let it sit next to an ants nest for a bit.

It worked a treat.

The moral...

Have a problem that needs solving?

Ask a kid.



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Aquaponics Over Flow

I wandered out to my system last night, and had what is commonly known as an HSM.

It must stand for Holy Ship Moment.

One of my grow beds was flooded, and there didnt seem to be any reason why.

This is the scene a few minutes after the pump was switched off.

There was water on the floor, and the pump was sucking in small air bubble through the little tornado that had formed in the shallow water over the pump inlet.




I couldnt figure out what was going on, so did a search of the system.

I found this blockage in the stand pipe.










It was stuck really well, but eventually to hammer it out with a length of dowel and a hammer.

The culprit, shown here, was a small piece of scoria.

This growbeds media is scoria.

I also found bird droppings. Im guessing a blackbird was in there throwing things around and looking for worms.


I do actually have an over flow pipe, added when I first built the little system, but the input flow from my bigger pump is much greater these days, so the little pipe wasnt up to the task.

Even so, its a good thing it was there because I think it saved the day by delaying the disaster until I discovered it.

Ill upgrade the pipe to cope with the new greater flow, and Ive put a PVC cap over the media guard so that particular issue cant happen again.





120 Things in 20 years think the last thing an aquaponics system needs is excitement when it comes to overflows.

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