preparing the farm diaries and main board for taula amiga.
this is the diagram of all the main components of taula amiga farm table.
after the wood structure there are 8 layers:
layer 1 – 1000x4000mm – fabric, any soft material, old cotton sheets or old blankets are perfect materials. this layer is for protecting the thin film of PP plastic (layer2) from touching the non pollished wooden floor.
layer 2 – 1240x4240mm – PP plastic fim 0.2 > 1mm. this should be a food grade plastic. this layer is the main drainage membrane. if punched or not well sealed on the draining holes (10 per table) the water will damage the wood structure of the table.
layer 3 – 150L – drainage material can be small rocks, sand, expanded clay or any inert material. this layer can also be used has a water reservoir for capillarity systems.
layer 4 – 1000x4000mm – TNT fabric, used to prevent the roots from entering the layer 3
layer 5 – 1000x4000mm – wood net. this layer is for prevent any damage on the sub layers like working on the soil with big tools so when someone reaches this layer knows that’s the end of the soil :) the wood has also a secondary function. it will rot slowly producing heat and a home for micro life.
layer 6 – 10000L of coco fiber. coco fiber is an excellent soil structure, it retains moisture and nutrients, the roots have no problem on diving in it and is very light.
layer 7 – 4000L of humus. this is a lot of humus and this is just for one table. we already started the composting systems but we need to go fast or find local sources of good humus.
layer 8 – 1000x4000mm – wood net. this layer is to divide the table by family of vegetables, reinforce the side structure and hold the watering system in position.
every year in the spring we have algae arriving to the coast. this year we got posidonia fruits to use in taula amiga farm. the fruits are balls of fibrous material that can be added to the compost, has a water reservoir in the draining system or added to soil has structure material.
we also collect tons of plastics.. ;(
here is the first final design of the farm tables.
this is a farm table designed to be build together with the families that are involved in the social cantine of taula amiga foundation. we think is important that people are involved with the design and building process. you know.. you make it and then it becomes part of you :)
we calculate 60 woods of 2000x100x20 per table. but before we came to this number we went to visit a sawmill. sawmills are not common this days.. like josep fontova said ” familiar sawmills are disappearing all bought by big corporations” so in practice you can not get wood from local resources and when you go to a big store you pay 6x more for the same type of wood and you don’t know where it came from. plus when you go to a sawmill you can ask wood with no treatment, that fits better to our goal of building a healthy container for our food to grow.
since we where here we took some woods to start making the prototype ;)
today the tarragona city council brought to us 4 trash containers that are broken. they are perfect for us, we cover all the bottom holes, build a wood base that holds the trash and drains the liquids, build a structure that elevates the container so we can put a tube for leaching collection and turn the composter more easily. here a link to our wiki
today is our first day of a series of workshops.
we plan building this farm together and with so many things to build and many more to learn we setup the goals for this next months: building a urban composting system, build the first 8 tables for the families and 2 more if there are neighbours interested in growing their vegetables :) in between we’ll learn how to grow food. we’ll meet every friday from now until the end of april. come join us if you are around ;)
some weeks ago olga ricomà, a teacher from the secondary school martí i franquès, asked us if she could come with her students and visit l’hort del circ. we say: sure! we are now on the perfect timing for the winter vegetables. so they came, I give them a tour on the different plants we have and how we can use them. lucky for some we also have aloe vera ;)
at the end we covered all the empty with ceramics pieces. keeps the moister on the soil and the cats don’t like walking on them :)
the teachers also made some pictures, you can see them at their blog.
l’hort del circ is 100% made of recicled woods and once a year we need to paint everything to preserve the woods from the winter moister and the autumn rain. we normally get used oil from the local restaurants but today we’ll use 6 months of used oil from a friend’s family (tks laura;) we filter a bit and that’s it, just paint until the wood take some time to absorb the oil ;)
autch.. this can hurts a foot!! wondering why people keep throwing trash and cristal bottles to here..
small improvement: you can visually tell how much water is inside this tank ;)