Thursday, April 17, 2008

5th day of compost


5th day of compost
Originally uploaded by tlbaraka
We turned the compost for a second time on the afternoon of the 16th. We where a bit worried about what we might find, as it was so stinky on the first turn. We where happy to find that the compost was quite hot. It actually produced steam in 40 degree weather. It did not have much smell either. One part was a bit stinky, because it was too dry and not decomposing properly, we added a bit more water here. In fact the pile is composting a bit too quickly now. Notice the white residue in the middle of the picture. This indicates the presence of anaerobic bacteria, meaning the pile is using more oxygen than is present. If we do not address this problem the final product will be low quality. We are working to maximize the amount of aerobic life in the pile not anaerobic.
It is likely that the nitrogen ratio of the pile is a little bit high. As a first measure, the pile will be turned everyday. Hopeful turning the pile everyday will bring more oxygen into the system and fix the problem. If this does not work we may need to add a sparing amount of high carbon material such as shredded paper or cardboard. The addition of more material is a last resort. Adding more material after the composting process has started will increase the amount of time required to finish the pile off.

Monday, April 14, 2008

The pile on April 14th


The pile on April 14th
Originally uploaded by tlbaraka
Looking good on the outside and showing signs of internal heat, we made the choice to turn the pile after only two days. It might have been a better idea to turn it after four. On the inside the pile was only just starting to heat up. Once we got into the middle things weren't really happening yet and it was all a bit stinky. It was also quite dry so we really needed to add water. It is likely that we will need to add water on the next couple of turns before we get it right. This is really only the fifth or sixth pile that we have made, it will probable take a few dozen more before we really get it right.

Day one: Assembling the elements


A close up of the ingredients
Originally uploaded by tlbaraka
This is the first post of series that will be published over the next few weeks. If all goes well it should be approximately 18 days long. If we have not been that good it could take much longer. On April 12 we assembled a compost pile in the front yard of our residence in Jordan.  It would be difficult to list all of the different materials that went into the building of the pile, because we don't really know ourselves. The rule of thumb - "If it was alive once, it can be composted". We do know that banana leaves, mesquite leaves, goat manure, dried up old bread, sheep's wool, guava leaves, wood ash, chicken poop, sticks and stones, kitchen scraps, snails and bugs went in. It is likely that some plastic made its way into the pile as well, this will be removed as it goes. We hope that countless species of microscopic life made it in as well. It is the diversity of the life in a finished compost that makes it so valuable to a garden. It is the flourishing of microscopic life that we are trying to encourage by assembling a compost. All of the fungi and bacteria found in a good finished compost are around us at all times. When building a compost we bring the elements together and allow life to do the rest.                                  


Watering the pile
Originally uploaded by tlbaraka
Water is the "keystone" element of any compost pile, as it is the keystone element of any life system. Life uses water to conduct its interactions. It is the interactions in a compost pile that we wish to encourage. A lot of water is used to start a compost pile, as most of the materials are usually quite dry. A healthy pile will have moisture content of about 50%. This might seem a wasteful use of resources in a region such as the Jordan valley. However, the value of compost in a garden can be seen within a few months. This compost pile will also be used at the project site to help build soil biology around trees that will be planted in the coming weeks.

We are following a composting technique known as the “Berkley Method.” It is a labour intensive method, but it can yield a reasonable product in short period of time. If all is going well we will be making the first turn on April 16th and every second day to follow until the compost is relatively cool and finished. The plan is to blog a picture and some observation at every turn.

Right now the pile is covered with a plastic sheet and holding its moisture so things are looking good thus far.