50 shades of brown

I think it was Geoff Lawton who said something along the lines of "the only way for truly sustainable farming is to build soil, so that you have more soil when you're done than when you started". This is a stark opposite to the common slash-and-burn practices and the Western favourite "soak depleted soil in pesticide and fertilizer" approach. To those who aren't sure what's wrong with using fertilizer - the health of the plants is based on the health of the system the plants are living in, and first and foremost - the health of the soil. This encompasses the mineral and humus content of the soil, AND, just as important - the multitude of organisms that are the soil life. These include fungi, bacteria, worms, insects, and whatever else. This network of living things is what makes it soil, rather than dirt.

Keeping all this in mind, I was itching to get started making our soil a thing of beauty. As soon as we got a truck, we have started compiling our sources of organics. Main concerns were price (free, please), compatibility (you need both nitrogen-rich and carbon-rich materials), and versatility. One thing that people often miss is that currently soils are more often than not deficient in some things (due to long-term growing/grazing and selling elsewhere that removes the nutrients). Different soils will have, of course, different deficiencies. However, if you compost all of your home-grown leftovers and apply them to your own garden, thinking that you're solving your soil's issues right there, you're completely off-target. Each garden will have a different mineral content. Since you're applying a mineral-deficient compost to the same-mineral-deficient soil, you're still left with deficiency. To do fine-scale, targeted adjustments of mineral contents, it's super important to have soil tested. The broader approach is to get inputs from as many different sources as you possibly can, and hope that they will cover the spectrum of specific needs of your soil.

Piles of free wood chips, courtesy of a tree service company not too far away 

Which brings us to the name of the post - the more different manures, the better! Currently, we have a pile of alpaca manure, horse manure, and we should be able to pick up some chicken manure in a couple of weeks. These will be our nitrogen sources. Since different animals uptake different vitamins and minerals, the manures should have a fairly variable composition. Carbon sources will include cardboard from recycling bins, free wood chips from a tree service company, and fallen leaves from anywhere we can get them.

Mmmm, manure... Horse in the front, alpaca in the back. Josh on the truck ;-)

Our approach will be build raised beds using sheet composting (aka lasagna beds) this fall and next spring. Currently, we're waiting for the house construction to be over and all the heavy equipment to be gone. Once the house is built, we will put together a few raised beds. In them, we'll layer cardboard on the bottom, a layer of mixed manures, a thick layer of leaves, a bit of top soil from our own site (scraped off during driveway and house construction), and wood chips on top. All pathways in between will be mulched using cardboard and wood chips. All this good stuff will be left to overwinter and decompose, so that it's ready for planting in the spring. One of the beds will be made using compost from the stuff Josh's relatives are supplying us. I really hope it does well, so that they see what you can achieve with the power of garbage :-)