Sustainable Farming at Ironwood Farm

This is the second of two posts on the sustainable features and systems here at Ironwood Farm. You can read the first on Sustainable Housing here. Although “farming” may not be something many of us ever do, I do feel an understanding of alternative food systems is critical. Also the system and techniques Chris shares could apply to anyone wanting to grow or raise even a small portion of their food.

Greenhouse and Gardens

Me: To begin, how many acres does your property sit on, and how much is or can be cultivated?

Chris: It’s 9.8 acres. There is probably an acre of more that is under buildings, road, parking or storage. There is approximately .50-.75 an acre left wild for habitat. They rest is or will be all cultivated; most of it in pasture now and the rest in garden beds.

Me: How would you describe your farming technique?

Chris: Chaos? ;) I sort of fall towards doing a no-till method. I try to build the soil in a natural way, keeping that diversity of soil organisms high and undisturbed. It’s also less labor-intensive. When starting with depleted soils, I till deep, blending a lot of organic matter into it for the first year. After that, it’s just shallow tilling or no-tilling. Part of what makes the rotation of gardens and lifestock possible is being able to reconfigure and move fences and structures. We have eight or nine structures that are in constant motion that serve as hay barns, milk barns, animal shade and a butcher shop. That doesn’t include chicken tractors or movable fencing.

Me: You are not certified organic, correct? Can you tell me why and how you feel about organic certification in general?

Chris: No, I’m not. I think it’s a worthwhile thing to do. It’s difficult in terms of paper work and jumping through hoops. I feel the label has been watered down over the last number of years by big agri-business wanting to sell organic but not wanting to go through the expense of doing it well. I may certify but don’t feel it’s a priority. I believe in having my customers inspecting my product and my practices.

Me: I’m a huge fan of permaculture. What are your thoughts on the method?

Chris: I’m a huge fan, too. I got interested in permaculture as a teen, after we purchased this farm. I started fish culture in greenhouses and an outdoor duck yard with a pond and annual and perennial plants, starting a small permaculture hobby as a teen. There seem to be more people who like to talk about it or teach it, but haven’t practiced it; the practical applicability is unknown in some cases. There are examples of functioning permaculture communities or farms, but it’s hard to make it work, especially if you’re looking at marketing and sales. One of the problems – especially if you’re trying to mix a large variety of animals in – is your base knowledge needs to be huge; you need to know about all those animals and plants to be able to meet those specific needs.

Me: How big is your greenhouse? Can you tell me its purpose and features?

Chris: The green house is 24 feet by 70 feet. It’s basic purpose is to produce protein through fish, rabbits and eventually quail and to grow produce year-round. It’s set up as an bio- intensive garden; the idea is to utilize as much space as possible while taking very good care of the soil. It’s mostly for us but also to for the possibility of sales. It’s set up as passively as possible: air movement through extensive ventilation (no mechanical fans or heaters of any kind); the aquaculture systems help store and produce heat for the greenhouse; as well as composting to produce heat and carbon dioxide for the plants. It’s set up to catch rainwater with an 1,800 gallon cistern underneath for rainwater storage, which is used to irrigate the greenhouse.

Me: What types of practices do you use to feed the soil or prepare a new bed?

Chris: We bring in horse manure from neighbors, which is composted or in some cases applied directly to beds. If its applied directly, it’s tilled in and typically seeded with a cover crop to allow the nutrient cycling to take place. We bring in compost from a local organic compost supplier; that is either tilled in or top-dressed, as needed. We make our own compost as well, but we’re not making enough right now to keep up with the current increase in gardens. Also, as needed, we run small amounts of vinegar through the soil to increase the acidic levels and release more nutrients, with the added benefit of cleaning the irrigation lines.

Me: Talk to me about irrigation: Where does your outside water come from and how is it used in the fields, greenhouse and garden beds?

Chris: The bulk of our irrigation comes from surface water diverted from the Rio Grande. We also have three wells, two of which are on solar pumps that provide water for the homes, animals and gardens (the third is a domestic well on an AC, grid-tied pump used only on an emergency basis). And again, there is the catchment tank in the greenhouse. Some of the yard around the driveways are laid out in swales so that they effectively catch runoff from rain. They are graded differently so that they all run one to another and into an overflow pit. The fields are flood-irrigated, the small-paddocks are spray-irrigated at times and most of the gardens are watered with drip irrigation.

View From The Door

Me: Let’s talk a bit about animals: How did you first getting into raising animals?

Chris: I got into as a kid. I started getting chickens, fish and quail when I was a teen. My career became fisheries biology and fish culture. I began planning to leave that career about 8-10 years ago and just waited for the opportunity to begin farming and raising animals on a larger scale.

Me: What animals do you currently have here? Are there any animals or produce you wish to add in the future?

Chris: We have cows, goats, pigs, sheep, geese, ducks, turkeys, chickens (for meat and eggs), fish and crawdads, rabbits and bees. We plan to add vermiculture, so some day we’ll have worms, too. :) I’d also like to raise maggots for fish food. We’ll be adding more perennials, especially shrubs (like ground cherries) and vines. We’d also like to add ponds to provide a place to culture fish, as well as provide good habitat.

Me: Why such a broad diversity?

Chris: We strive to create a poly-culture of animal and plants. The benefit to that is a higher yield of products per unit area. That happens because the animals all feed on slightly different food items; ecological niches if you will. The diversity benefits the system; each organism can benefit the other organisms. Having plants that flowered throughout the year enables us to feed the bees all year. Having chickens and cows together means the chickens root through the cow manure for maggots or undigested food; this breaks up the manure and helps it return to the soil better. Diversity also helps diminish pests, parasites or disease. Same goes for the gardens; a variety of plants support each other and diminish issues.

Me: You have a system in place to rotate animals and crops. Can you easily explain how it works?

Chris: During winter months, the animals are pulled off the main pastures so they don’t over-graze, compact or erode the fields. They’re concentrated on a series of four plots through the winter, with their manure tilled in on a regular basis, as needed. When they’re rotated off those plots, an annual cover crop is planted, allowed to grow to 4-6 inches high and then tilled in. That bed is then ready to be used as a produce garden. Every plot rotates out every two years as garden or summer annual pasture.

Me: There is a lot of discussion on the environmental impact of raising animals for meat, milk or eggs. Can you explain your stance on the topic?

Chris: There is an absolute impact of simply existing, whether you’re a vegetarian living in a 10×10 house or not, there will be an impact. So there is an impact to this farming, but it’s less of an impact. I fairly much believe we’re omnivores, that some people can subsist on a vegetarian diet more effectively than other people, while some people just need more protein. So I believe that animal products are in and will stay a part of our diet for an immense amount of time. One main goal on this farm is to provide people a rare alternative to conventional agriculture. Rather than saying to customers we don’t provide eggs [because it has a higher impact on the environment], we’d rather give them a better choice of eggs. I feel a version of this model is by far more sustainable than the existing model.

Me: What do you feel are the drawbacks of farming on a smaller, sustainable scale? Any other drawbacks to this lifestyle?

Chris: Small farms need to be mindful of how materials are transported to and from the farm, from the standpoint that if you’re hauling small amounts of feed to your farm you’re probably expending more energy than transporting large amounts. And conversely if you’re hauling small quantities of produce, in say a 1966 Ford F-250, you’re expending a great deal of fossil fuels doing so. So the drawback is that if you’re not mindful of these things and make plans to counteract them, you have not necessarily done better for the environment.

It’s also a very narrow way to make a living, if it’s possible at all. The percentages of money people spend on food has change over the decades. We’re now used to spending less of our income on lower quality food. Getting people to spend more money on a higher quality food is difficult.

Me: What are your future plans for the farm?

Chris: The plans are to attempt to make the high-diversity, polyculture, sustainable farming model work financially for this farm. To that end, I hope to have either a continual group of volunteers (long-term, short-term and full-time residents) coming through but also we have to make ourselves as efficient as possible. We need a large amount of organization so that all tasks become quick and efficient. This is essentially to compete with factory farming that has the benefits of mechanization and repetitive tasks.

Me: For someone interested in sustainable farming, what advice do you have to offer?

Chris: Apprentice. Work with other farms. The actual issues that can be stumbling blocks and difficult to address are almost impossible to glean from reading and researching. You have to do it.

If you wish to know more or are interested in learning hands-on through volunteering at Ironwood Farm, contact Chris on his blog.

Sustainable Housing at Ironwood Farm

This is the first of two posts about the sustainable features and systems here at Ironwood Farm Project. Chris has happily obliged to answer my questions in an effort to inspire and inform others looking for options. But please remember this is not as comprehensive as it could be! There is a lot to sustainable housing (including completely different methods) that is impossible to explain in a single post.

Also, when it comes to sustainable housing you are obviously going to have a lot more versatility when it comes to building a home from the ground up (which is what was done here) vs retrofitting a pre-built home (which is likely what most of us are or will be working with). But at least this post will throw out some of the ideas implemented here and hopefully get you started in your search for more information.

Ironwood

Me: Chris, you started from the ground up, correct? Let’s start with the basics: What materials did you use for the structure and where did you source them?

Chris: We started with an empty field. We sourced everything as close to us as possible. We brought in dirt to make a mound for the house to bring it above flood elevation and crushed concrete for the driveways from a nearby demolition company.

The foundation was made out of an insulated concrete form called RASTRA, which is a material that has been used in Europe for a long time. A local company manufactures the blocks using waste foam from Intel Corporation.

The house is straw bale with a timber frame and covered with an adobe plaster. The plaster was sourced from forty feet from the house; the clay was on the surface and we dug digger to reach the sand. The timber framing was made from 2x4s and OSB (chipboard). Those were new products brought in from a distance but we chose them specifically because they were very light in mass, so the shipping was “greener”.

The straw bale was used because it’s easily renewable and for its insulation properties. It’s also durable and fire-resistant (think of burning a crumpled piece of paper vs burning a thick phone book). We sourced from Southern Colorado, which was the closest source of construction bales. Construction bales, made from barley (in this case, a byproduct from Coors Brewing Company), are very uniform and dense. Barley is also sturdy enough to not crush when being baled; this protects the air space within the straw for added insulation.

The ceiling is insulated with about 16 inches of blown-in cellulose and the roof is galvanized metal. We chose a metal roof because of its durability, longevity and reuse-ability.

We used as many salvaged items as possible: all the doors (exterior and interior), many of the windows, tile flooring, wood from pallets for ceiling tiles, all the trim lumber, and cabinets. We also used adobe flooring and adobe bricks for interior walls.

Me: What kind of passive design elements were implemented to save energy?

Chris: We built large south-facing windows with a slight pitch to the east to protect from intense western sun in our particular climate. Interior adobe (floors and walls) act as a thermal mass to store heat or “coolth”. :) We emphasized an open floor design with large doorways and pass-throughs in the walls (essentially holes that assist in circulating warmed or cool air from one room to the next). We put in hydronic tubing under the floor but haven’t needed to hook them up. When we irrigate we have the ability to run the irrigation water through the tubing before running it to the gardens, which will cool the house. We also added earth tubes, which can conduct thermally tempered air into the house.

Me: Let’s talk about the work: How much of the labor did you do yourself and who helped? Did you find yourself needing to hire contractors or barter skills?

Chris: All of the above. We had our hands in everything from the design to the electrical. We hired a contractor to oversee the framing and roofing. And we had very large numbers of volunteers – family, friends, coworkers, neighbors and random strangers.

Me: How long did it take you from the time you broke ground until the time you moved in?

Chris: It took about three and a half years, but it wasn’t completely finished at that point. We passed our occupancy permit so everything functioned but some of the rooms were built after we moved in. Because much of our materials were salvaged, a lot of our planning happened as we went, which slowed us down and complicated things.

Me: Energy is obviously a key factor in sustainable housing. Can you talk a bit about the energy needs of the house and how you meet those needs?

Chris: We have a solar electric system with 920 watt PV panels and eight L-16 batteries. The inverter is 3000w, sized partially for running large power tools needed in construction and on the farm. The fridge and freezers are DC, which is more efficient and you don’t have the energy losses with converting from DC to AC power. We setup switches for turning off phantom loads, use CFL bulbs,  and purchased very energy-efficient appliances and electronics (such as box freezers, instead of upright freezers). We also have a wood-burning stove for backup heat and cooking, which is rarely needed. Our water heater and stove are propane.

Me: And what about water? Where does your water come from and what water-saving features does your house implement?

Chris: The water comes from a well about 200 feet below the house and is pumped from a submersible pump that is directly driven from solar panels (separate from the house system). There are no batteries, only a pressurized tank, which means a limited volume of water can be utilize overnight. The house is designed for rainwater collection with a single-sloped roof and a single central downspout and catchment tank. Greywater from the house can be plumbed into the yard. There is only one bathroom with the composting toilet. And all faucets and the showerhead are, of course, low-flow.

Me: Looking back, is there anything you would change?

Chris: There are probably a multiple of small design features I would and still can change, such as a porch on the west side of the house to assist in shading from the western sun. Also, if we had had the confidence that the house would have performed as well as it has, we could have saved money and resources with some of the features we installed and don’t use (such as the hydronic tubing and earth tubes). And then just small mistakes such as inconvenient placement of light switches.

Me: What are your future plans for the house? Do you plan to add anything?

Chris: Yes, we plan to hook up the greywater and rainwater catchment, build a porch and greenhouse off the south side (as initially designed) and finish the exterior plaster. And then build shelving, organize it all and finally have a place for everything and everything in its place!

Me: What skills or resources would you recommend a person have before undertaking their own sustainable housing project?

Chris: If you do not possess some skills of basic construction then you need to be a very hands-on person and a quick study. Apprenticing and working as a volunteer (for Habitat for Humanity perhaps) is a huge asset. Even if you know the basics, putting it all together is a totally different thing, especially if it’s alternative.

Me: Anything else you would say to someone undergoing the same project? Or resources you can recommend?

Chris: The straw bale building books helped me, especially the less commercial, more “homegrown” books, such as Build It With Bales. Working in phases and giving yourself time to work with salvage and earthen materials can also be a good way to go. Also, the KISS rule: Keep It Simple, Stupid.

If you’re interested in more of what Chris is doing or has done, visit his blog Ironwood Farm Project to contact him or volunteer.

Thoughts On The Farm: Could We Do This?

Bench Monday - Farm Edition
Happy Bench Monday – Farm Edition
(Or Seven Turkeys On A Ford)

There comes a point where the romance wears off and you realize just how much hard work is involved in sustainable farming. I think I reached that point on Thursday.

Don’t get me wrong: there is a part of us that does not want to leave at the end of this week. Good food, good people and a culture we enjoy. Not to mention fulfilling work in something we believe in. And there is so much more to know about sustainable housing, animal husbandry, beekeeping, rotational grazing, preserving…we could be here for years and still learning.

But we didn’t sign up for this internship to learn how to farm. We signed up to find out if this is something we want to do in the future…if we’re cut out for it or if doing it ourselves would totally kick our ass.

We feel strongly about sustainable, small-scale farming. We feel strongly about raw milk and organic vegetables and grass-fed meat and free-range eggs and seasonal fruits all being a part of local and sustainable eating. We feel strongly about dislodging ourselves from the mainstream culture of disconnection from our food and its source, as well as our over-consumption of energy, water and other resources, and the waste inherent in such choices.

I have, on occasion, spoken to older generations and expressed our interest in living this way. It comes from a desire to live simply and feel more connected to our food, our land and each other. So many of us are disillusioned with The American Dream of bigger houses and smaller lots and manicured lawns and 60 hour work weeks for someone else’s benefit all while drifting further and further from each other and ourselves. And we look into the past with a sense of wonder and awe and we feel it. We feel in our bones that this disconnection we’ve bought into cannot be better than the alternative of a life lived slowly. But almost every time I’ve had these conversations I’ve been met with dubious smirks. They remember those days of hard work with little of the same romance, they would never trade the convenience and ease of modern life for home canning and handmade clothing again and they chock our exuberance up to youthful ignorance.

Were we ignorant?

For the past several years we have essentially dreamed of what we are now experiencing. And let me tell you: it’s not as romantic as it sounded.

It’s not as if we didn’t know it would be hard work. But we didn’t really know in the way you know when you’re shoveling hundreds of pounds of wet debris out of an irrigation ditch. We didn’t really understand just how much we’ve become complacent to endless and abundant options until you remember the only tomatoes you have are the ones canned last summer. We didn’t really appreciate the cost of food until we experienced the labor inherent in milking a pint of milk from a prancing goat who kicks it over just as you finish.

We “knew” these things, but you just can’t get it until it’s in your hands.

In the few weeks we’ve been here we’ve seen little of each other and can already feel the strain. We’re tired and busy and working on different things. It’s tough to not see much of the people with whom you so enjoy spending time…even when you’re both doing something you love.

So, could we do this? If this was “ours” would it be different? Could we wake up, day after day, with no break and an endless number of chores and projects and not go insane, get antsy or feel exhausted with life itself? Could we prevent the stress from getting to us as a couple and still find time for each other and our child?

If we only had own hands and a piece of land to rely on, could we sustain ourselves? Or are we doomed to rely on outsources and inputs and a system we neither trust, nor wish to support?

I don’t yet know.

Overall, I’m glad we came, even if it asked us more questions than it answered. It’s given us an appreciation we only thought we had.

One thing I know for sure: We could never do it alone. Part of what has made this difficult experience fun is the “community” built with the many friends and volunteers that have come and gone. Milking a cow in the cold is drudgery. Milking a cow, cooking meals, washing dishes, running from rouge turkeys, thinning carrots and taking funny Bench Monday photos while talking and laughing is something we have loved.

I’m interested in your thoughts on this…

On Composting Toilets and Humanure

Of all the things to get excited about here, the composting toilet  and humanure system probably certifies me as crazy.

I’d never used anything but a flush toilet, although I’d heard about alternatives. And much like beekeeping, it retained a place in my mind as intriguing but way beyond my comfort level.

Composting Toilet

After my first experience with their composting toilet and humanure system, I was pretty impressed. It definitely seemed a more sustainable option. But after getting my hands on Chris’ copy of The Humanure Handbook: A Guide to Composting Human Manure*, I’m so fully sold on the idea that I cannot imagine ever going back!

The world is divided into two categories: those who shit in drinking
water and those who don’t. We in the Western world are in the former class. We defecate in water, usually purified drinking water. After polluting the water withour body’s excrement, we flush the once pure but now polluted water “away”, meaning we probably don’t know where it goes, nor do we care. – The Humanure Handbook

This paragraph gave me an imagine of a snobbish, over-privileged society opening up a bottle of Perrier to take a piss. Except it’s a 3-7 gallon bottle of Perrier. Yes, this was the paragraph within the two chapters of disturbing and eye-opening citations that clenched it for me: Flush toilets are weird.

On the other hand, the benefits of a composting toilet are amazing. Some of them include:

  • No water. Zero. Zilch. When you consider that, at best, you are flushing 3 gallons of clean water down the drain several times per day and when the lack of such sanitary water is attributable to 25 million deaths a year, 60% of whom are children…well, flush toilets seem pretty pompous.
  • No smell. Seriously. If done properly, there will be no discernible odor. Which is more than I can say for some flush toilets.
  • Less cleaning, which means less harmful chemicals. How many environmentally-conscious people out there still resort to something nasty to clean their stained toilet bowls? Especially if you “let it mellow”, the ring around the toilet can be disgusting to look at and impossible to remove without bleach.
  • No splash back. Because could there be anything worse?
  • No flush. The composting toilet is quiet when you’re worried about waking a household…or alerting guests as to what you’re doing.
  • Compost. After proper, easy composting you’re left with rich humus for the garden.

Why Humanure

The reasons are pretty amazing and cover a broad spectrum. Rather than quote the entire book for you (and oh man, it is good stuff), let me run down a few of the book’s citations:

  • We are the only species on Earth to create waste. Other species create resources. Manure – from any creature – is a resource. Would we throw money away? Then why throw away good water and good compost?
  • The foods that animals eat help to nourish the land that provided it in the form of manure. Food grows > Food nourishes > Bodily excrements are left behind > Those excrements grow more food. We are the only part of nature that does not work within that cycle of life and growth, choosing instead to create a broken cycle of mostly synthetic inputs and wasting important outputs.
  • Half of the 250 million+ tons of waste per year is valuable as an agricultural resource. Instead of composting it ends up in landfills, creating an excess of methane. Landfills are considered “‘among the single greatest contributors of global methane emissions’, according to the Natural Resources Defense Council.”
  • When considering that 1 in 3 people on every continent do not have access to clean water it makes it utterly ridiculous to crap in ours.
  • Composting humanure by impoverished areas gives sparse or stripped land an ability to flourish, thereby feeding and sustaining life.
  • Compost, including humanure compost, has the ability to degrade toxic chemicals. The book cites an Austrian farmer who owned the only farm not affected by the radiation from Chernobyl, believed to be due to the abundance of microorganisms in his soil. Also, the Umatilla Army Depot munitions site heavily contaminated with TNT and RDX restored the soil to “a better condition than before it was contaminated” after composting the soil. This also saved approx $2.6 million in incineration costs. (It’s estimated that if all such sites were composted it would save $200 million of taxpayers money. Hmm…) Could compost – something we could potentially have an abundance of, help restore other polluted areas?

But most of all, it’s sustainable. In a world of rising oil prices and depletion, we need to find alternatives to doing the things that simply don’t make sense. As food, sanitation and sewage costs continue to sky-rocket, I foresee more and more of us needing to “return to the land”, grow our own food without endless synthetic inputs and put an end to waste of any kind. Animal and human manure are a valuable resource that we will not be able to afford to lose in the future.

What About Germs?

We’re probably hard-wired to be disgusted by human waste. This mechanism helps keep us away from harmful pathogens and stay healthy. Not necessarily a bad thing. But those of us who wouldn’t bat an eyelash at using composted animal manures would be more than a bit concerned about using composted human manure in the same manner.

Properly composted human manure is free of pathogens or bacteria. It’s a process and not at all difficult, but describing how is worthy of its own book. And thankfully The Humanure Handbook* fills that void. It covers a broad spectrum of information from microorganisms to maintenance and even some philosophy. I dare you to read it and not reconsider your habits.

The Ironwood System

It’s pretty simple: A wooden box with a lid that lifts and a toilet seat on top. Inside is a five gallon bucket. Chris also has a fan installed inside the box that vents outside but we’ve yet to really need it. Beside the composting toilet is a bucket of wood chips. (You can also use straw or sawdust.) When someone uses the bathroom, they simple sprinkle material over the top. When the bucket gets full it is dumped into a humanure composting bin, which sits for a year before use. Chris has been using a composting toilet and humanure for about 8 years without issue. And it’s been feeding his gardens and his family for just as long.

I Won’t Go Back

I’m thankful that in the RV we use a measly cup or two of water to flush. If it’s just for #1 and the water pump is off, we can actually get by without using any water (by opening the hatch while we go, we don’t even need to rinse the bowl). If we had the room and a place to compost it, I’d set up a humanure system in a heartbeat. (I have heard of RVers using composting toilets with a trash bag that can be tied up and dumped normally, as well. It’s really not much worse than throwing away disposable diapers, just in larger quantities.)

But when we settle back into a home, I will not be using a flush toilet. I’m a convert, I love it and I’m not going back.

What about you? Have you used a composting toilet? Or would you try it?

*This is an affiliate link to Amazon. If you are considering buying this book, please consider purchasing it (and any other books) using this link. All earnings go toward supporting our family.

Adobe Flooring and a Workshop

Exfoliating Farm Treatment

One of the most intriguing parts of Ironwood Farm is the sustainable building. Chris’s home is strawbale with an adobe finish on the walls and adobe flooring, just to name a few of its great features. Adobe is amazing resilient, water-resistant (in dry climates) and in most cases, more affordable. It’s made of sand, clay and an aggregate (such as fine gravel or straw) to hold it together. He was able to obtain most of the materials right from his own land (while at the same time creating a hole for a pond).

It’s something you can read about all day but until you see it yourself – and better yet, do it yourself – it’s hard to get a grasp on it. Thankfully, Chris has been more than obliging to introduce us to everything he can; over the weekend, we helped with an adobe floor in his workshop, filling cracks and oiling it with raw linseed oil. It was an amazing – and exfoliating ;) – experience. We’re looking forward to more next weekend.

Handmade Adobe Floor

If you’re in the Albuquerque area, and interested in learning more about the adobe flooring or enjoying a tour of his home, he’s holding a workshop (we’ll be there!)…

Adobe Floor Installation
(Albuquerque, NM)
Saturday, March 27th 10am to 3pm
Hands-on experience in prepping, mixing, applying, leveling and finishing
Including a tour of the other sustainable housing features
Cost: $35, including a homegrown lunch (discounts for students)*

Contact Chris at (505) 363-0074 or ironwoodfarm@comcast.com

(*I’m receiving NO compensation for advertising this. Unless you count more experience and great food. :) )