The decline of bee populations has been a hot topic for quite some time now. While the decline has been slowing slightly, bee colonies are still being decimated by causes that are not fully understood yet. Bees are the most important pollinators for many fruit bearing plants, so it is important to attract bees to your vegetable garden.
Bees are constantly searching for nectar and pollen, so make sure they can find plenty of flowering plants in your garden. Plant many different kinds of flowering plants, so the bees will find something in bloom from early spring until autumn.
You can also provide them with housing. A chunk of wood with holes drilled into it makes the perfect home for mason bees. If you want something that is better looking, you could get a ready made bee house
In addition to housing and flowers, bees need water. A nearby pond or bird bath is not a safe water source for bees: they can get trapped in the water’s surface tension. A small container filled with sand and water is preferred. Keep the sand wet and the bees will be able to drink from it.
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The mailman was just here to drop of my first copy of Urban Garden Magazine. UGM is a bi-monthly magazine focusing on hydroponics and indoor growing. I hadn’t heard of this magazine before, since it is distributed through hydro- and grow-shops in the US, Canada and the UK. That is until Dan, one of the magazines editors contacted me and asked me if I wanted to write something for the magazine.
So, I wrote a piece on greenhouse temperature control and the people at UGM loved it, in fact, they already have me booked for another gig in their next issue!
If you don’t know UGM yet you should check out their website at www.urbangardenmagazine.com, they normally have a few of their articles published on their site, or pick up a copy at your local hydro-store.
If any of you already have a copy, I would love to get some feedback on the article!
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My goldfish have been polluting the water for a little while now and all the plants I have transplanted into the aquaponics grow bed are doing good. A few days ago I decided to add the NFT channel, that I made a while ago, to the system and pop some basil seeds in. The seed packet says that germination takes 15 to 20 days, the seeds I put in started sprouting after 3 days! The picture was taken this morning, 4 days after sowing.
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Spring has really started and everything is starting to grow, but not every plant is wanted in our garden. We have a lot of stinging nettles in our garden and getting rid of them can be quite a challenge. This plant, however, can be put to good use in our garden by using it to brew a natural, highly effective, fertilizer. You can use the whole plant to create fertilizer: leafs, stems and roots.
Roughly cut up the plants and dump them into a barrel with water. You’ll want to add about 1 kg of plant matter to 10 liters of water (about 1 pound to a gallon) After 24 hours you will have a plant strengthener that is very high on silicic acid, a substance that will strengthen your plants cells and protect them from stinging and sucking insects.
Letting your nettles stay in the water a little longer will break down the contained nutrients and leave you with a fertilizer that is very rich in nitrogen and trace elements. Place your barrel in a sunny spot, but think about where you place it as the process of breaking down the plant matter into its elements will release a very bad smell. Give it a daily stir with a shovel and after two to three weeks your fertilizer is ready to be used. All the plant matter that hasn’t been broken down can be added to your compost pile.
The liquid fertilizer can be sprayed directly onto your plants, in which case it should be diluted: 1 part fertilizer to ten parts water. Or you can water the plants with it. One treatment a week will give you noticeable better growing, healthier plants.
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I got my ordered copy of Growing Under Glass
, a book by Kenneth A. Beckett in the mail yesterday. It contains a big section about different types of greenhouses, finding the best location for your greenhouse and how to build your own. All information I obviously don’t need, since we already have our greenhouses. Still, it was a very interesting read!
The book covers about everything you need to know about building a greenhouse, equipping it and growing plants in it. It teaches you how to prepare your soil as well as less known planting methods like growing in straw bales. Growing plants from seeds as well as propagating cuttings are extensively covered and everything is accompanied by clear, step by step, illustrations.
I own quite a few gardening books, but if I had to pick my favorite one, Growing Under Glass
The best place to start saving precious tap water would probably be the toilet. A few gallons of water are washed down every time you flush the toilet, often needlessly. Saving water and money can easily be achieved by reducing the amount of water that it flushed down the toilet.
A standard toilet will empty it’s water reservoir each time you push down on the lever or yank the chain. All we have to do is modify the internals of the reservoir a bit to let the toilet flapper cut off the water flow as soon as you let go of the handle. The exact modification needed depends on the type of flapper installed in your toilet.
Some flush systems have a floater that keeps the toilet flapper open. If the floater is attached to the flapper, you might be able to remove the floatation device altogether. When the floater is integrated into the flapper, drilling a hole into the float will disable it. You could also add some steel washers or other weight to counteract the floatation device.
The flapper in our toilet is the float and it couldn’t be drilled without making the flapper leak, so I had to add some weights to it. The toilet now only lets the water flow as long as you hold down the handle, as soon as you let go the water stops. This saves a lot of water and still leaves you with enough flushing power for the big boys.
Some companies sell special weights or other devices to achieve the same effect, but I think it is ridiculous to buy these if you can simply use some old junk to accomplish the same. The reason you want to use less water to flush your toilet is either because you want to save money, live a little greener or both. Not buying a commercial device for this purpose will save you money and save the environment because you will not have the packaging to dispose of.
]]>While we where out the temperatures dropped to about -10 and this caused some of the water supply pipes in the greenhouse to tear wide open. It’s amazing how much force freezing water has. Steel pipes ripped open and water faucets cracked right off. Once the ice had started melting the next day, the pipes sprayed water into the greenhouse like crazy.
The previous owner always kept the greenhouses heated throughout the year, so he never had problems with the above-ground water pipes in the greenhouse.
The total amount of water we have lost to this little disaster is 18,000 liters, about the amount we would normally use in 45 days time. We where actually thinking about staying with the family a day longer, I’m just glad we decided to go home after all.
I’ll probably be busy most of tomorrow, trying to get some running water into the house again.
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I’ve been keeping an eye on our utility usage for the last couple of months, to keep track of what we use and see where we can, maybe, save a few bucks. I found our water usage rather disturbing.
Our water usage is a little over 400 liters (or about 110 gallons) a day. Our household supports two adults and two kids. Looking at the average water usage for Germany, which is just under 200 liters a day, per person, we aren’t doing too bad. Comparing our use to the 575 liters per person, per day, for the average US citizen and just under 500 liters for Australians, I’d say we are doing pretty damn good!
Still, 400 liters is a lot of water! This is not just plain water we’re talking about, it’s grade A drinking water that pours out of our tap. And how much of it do we drink? Let’s see, most of our beverages are bottled, so the only water we drink is what we use to make coffee and tea, maybe 2 liters a day, 3 liters tops! Add to that the water used for cooking and brushing our teeth, I’d say about 10 liters a day would be plenty of drinking water for our family of four.
The other 390 liters a day are wasted on showering, washing dishes and clothing and flushing the toilet. Now I would prefer somewhat clean filtered water to wash myself, my clothing and the dishes, but it does not have to be drinking quality. And to flush the toilet, just plain water from any river or creek or untreated rainwater would do just fine.
Since we have a huge rainwater tank (12.000 liters) I’m going to look into using some of that free water. I’m sure we are not paying to water the lawn next summer, but I’m also going to look into the cost and labor involved in using the collected rainwater to flush the toilets. That should save quite a few buckets of drinking water.
If you are interested in average per person water usage in different countries, have a look here
]]>I thought I’ll use the long weekend to set up a little half barrel aquaponics system. I still had one of those blue barrels laying around, so I went ahead and cut it in half to create two grow beds. After filling the grow beds with washed gravel and filling them with water the troubles started: I was using a loop siphon to do the ebb and flow in the barrel, but the loop just didn’t work like it should. When filling the barrel, the siphon should kick in at a set level and empty the barrel again, giving the plant roots access to oxygen rich air. After the barrel has been emptied the siphon should break and the barrel should slowly fill up with water again.
My siphon either wouldn’t kick in correctly, leaving the barrel flooded, or it wouldn’t break, leaving the barrel empty at all times. Some more tweaking is necessary for my barrelponics to work. Since I don’t have to go to work today, I’ll have all day to try to get this working.
If I want to set up a big aquaponics system I need some big water tanks and grow beds. Looking at various suitable tanks, they all had one thing in common: a very high price tag! Living self-sufficient means doing a lot of DIY, so I went on searching for a low cost alternative to use as tanks. I quickly stumbled upon ferro cement, which is basically a 3:1 sand and cement mixture with chicken wire used as rebar.
The strength of the chicken wire concrete is amazing and the uses are endless! Entire houses are being build with ferro cement and due to how these structures are build, you can go nuts and make your house a piece of art. Once finished, your structure will be truly low maintenance and it can withstand earthquakes and hurricanes.
I’m not building a house but fish tanks and grow beds both need to be sufficiently strong to be able to hold their contents and be water tight. The ferro cement is water tight and is used to build water containers around the globe. Because of its low cost it is used a lot in developing countries. The biggest saving comes from the incredible strength of the material, with the need of much thinner walls, compared to rebar concrete, you will only have a fraction of the material costs.
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