Listen to This Article
When my wife and I moved our family back to Kentucky to start a sustainable farming operation in the wild and rugged outskirts of Franklin County, our plan was simple. Weâd raise chickens, pigs and cattle on pasture. A large market garden would supply us (and, eventuallyâhopefullyâour neighbors) with fresh, organically raised produce.
We ended up doing much of this. We raised meat and layer chickens, established a pork-breeding program and, for a while, cared for a pair of black Dexter cows.
But before any of that, and within days of moving into a Civil War-era farmhouse, we mapped a 10,000-square-foot piece of grass behind the house. Then we pulled out the tiller and proceeded to tear things up.
Breaking the earth on our farm felt like the new beginning we sought. Tilling is what farmers do. But our soil was clayey and difficult. When heavy rains washed what little topsoil we did have down our gently sloping land, the garden bed pooled rainwater. Then the mud dried to a cracked surface, putting a serious damper on our market-garden aspirations. That’s when we started looking into our options for organic no-till growing.
âYou Canât Do Bothâ
Soil erosion, it turns out, is a hot topic in Kentucky. It’s a place of rolling hills where flat land is in short supply and priced out of reach of most beginner farmers. Couple that with the increasing frequency of heavy rains and the stateâs rich tilling history, and you can see why soil conservationists are growing panicky at the prospect of the Commonwealthâs dirt washing clean away.
Our little piece of land was small potatoes compared to the sprawling soybean and corn farms down the road. But it was important to us and our goals. So we ventured into town, to the local land grant universityâs test farm, for a presentation on no-till farming.
The first speaker showed a drawing of two farms, one on top of a hill (like ours) and one in the valley at the bottom. He explained that when the hilltop farmer tilled the land, rain and gravity carried it to the farm in the valley. This, he said, was in essence the crux of the soil erosion problem.
Another speaker explained how soil erosion threatened to clog waterways when the dirt migrated to streams and creeks.
And a third speaker, a representative from the Department of Natural Resources, showed us a series of demonstration models and a plot of field peas that had been drilled into untilled soil. Then, nearing the end of the dayâs events, the third speaker opened things up to questions.
âSo what will you do with the field after itâs harvested?â asked a woman in the front row.
âIt will be sprayed with glyphosate,â the speaker said.
A collective groan arose from the crowd. The the speaker bristled, acknowledging the popularity of organic farming but assuring us that the dire condition of our stateâs erosion crisis was the issue most needful of our focus.
When asked if there was such a thing as organic no-till, he shook his head. âYou canât do both,â he said. âAnd you canât grow anything without soil.â
The Trouble With TillingÂ
Agriculture is widely believed to be about 13,000 years old, with cultivated rye fields in the Near East serving as earliest examples. And tilling? Ancient Egyptian cave drawings illustrate that tillage by hand, hoe or plows has been with us awhile, too.
So turning and aerating the soil is no new idea, though today itâs most commonly accomplished with plows or disks. And itâs become the de facto field-prep technique because it works. Tillage breaks up compacted soil, controls competition from weeds and makes planting a whole lot easier.
The downside, though, is all that topsoil washing down to the valley farmerâs land (erosion). Other disadvantages include:
- Compromised soil structure as underground fungal networks are broken up
- Release of carbon dioxide
- A dependency on fossil fuels (unless youâre hand-tilling or working with draft animals)
Over time, erosion became pretty noticeable in some agricultural communities (Dust Bowl anyone?). So, in the 1960s, with new herbicides hitting the market and the development of seed drilling implements, no-till farming experienced a surge in interest. Farmers used synthetic chemicals to kill cover crops, then drilled seeds directly into the soil. Monsantoâs release of glyphosate in 1974 under the brand name RoundUp made the herbicide a standard for no-till farming.
Glyphosate may not have carried the stigma it does today, but neither was it popular with back-to-the-landers or organic farmers. Their concern about soil erosion got trumped by an aversion to synthetic-chemical herbicides.
But in the 1980s, a push for organic no-till options gained traction. Researchers discovered that certain winter annual cover crops, such as hairy vetch and cereal rye, could be cut close to the ground at a very specific stage with minimal regrowth. This meant that farmers could mow, drill and expect their crops to grow through the weed-suppressing mulch.
Organic farmers heralded the finding. But inconsistent results in terms of weed suppression and crop yields slowed the roll on an organic no-till takeover.
Over the years, though, researchers kept trying to develop tools and systems to make organic no-till a viable alternative. In the mid-2000s, the Rodale Institute, a nonprofit organic farming research institution in Pennsylvania, released building plans for a no-till roller crimper implement developed through their No-Till Project.
âWe conceptualized and developed the roller crimper at Rodale Institute to allow organic farmers to make use of modern no-till planting equipment,â says Rodale Institute Executive Director Jeff Moyer. âCover crops can be terminated mechanically without the use of any chemical inputs. By using cover crops and a roller crimper, any farmer can begin to build soil health.
âNow we have a system that is not only biologically practical, but mechanically possible. Farmers have the option to utilize organic no-till on whatever size farm they have and are not faced with a decision between utilizing no-till methods that protect the soil and limiting their synthetic inputs.âÂ Â
Scale It Down
Small-scale and hobby farmers donât necessarily need to buy or build a massive implement. But like my wife and I standing in our eroding market-garden bed, many seek proven methods to grow food without tillage.
That was Jesse and Hannah Frost last year, when they decided to return to no-till growing methods on their 3â4-acre market garden, Rough Draft Farmstead, in Anderson County, Kentucky. (They’d previously abandoned the idea due to economical returns.)
âWe started to see more farmers doing no-till, and that revived our interest in starting our own no-till system,â says Jesse, who is also a frequent contributor to Hobby Farms. âGenerally, no-till is relegated to either backyards or giant grain operations. So we needed something that fit in the 1-acre scale.â
Their search led them to examples such as Singing Frogs farm in California and Tobacco Road Farm in Connecticut, both no-till vegetable farms on small plots of land.
âOur primary system is more of a deep compost mulch system, where weâre laying down layers of compost and planting into that,â he says. âIt keeps the soil covered. Keeps it warm in the spring. Itâs a very simple system.â
Down the road in Frankfort, Connie Lemley and Andy McDonald practice minimal tillage at Cedar Ring Greens using a flail mower and black-plastic method championed by The Market Gardener author, Jean-Martin Fortier.
âWhen a bedâs done, weâll mow them with a flail mower. Then we put the black plastic on them for four to eight weeks,â Lemley says. âThen weâll be able to just rake off the residue and plant again.â
âThe black plastic is helpful for a variety of reasons,â McDonald says. âIt keeps it from getting waterlogged if it rains too much, and it keeps it from drying out, too. So the soil has a really nice texture and moisture content when we take the plastic off and are ready to plant. It prevents the weeds from growing and kind of kills whatâs there. Last year, there were brassicasâthings like kale and collardsâthen we put a cover crop overwinter.â
Lemley and McDonald employ a mulching method, too, placing wood chips in paths between rows for four years, then applying the broken-down chips to a bed. But for both of them, the flail mower, attached to a walk-behind tractor, is the star of their reduced-tillage methods.
âThe flail mower is actually perfect,â McDonald says.
âReally, it is amazing,â Lemley says. âWhen a cover crop is this tall, itâll go right through it and turn it into beautiful mulch.â
Get Started With No-Till
So you can have your cake and eat it, too, with organic no-till methods proven and practiced on smaller farms across the country.
You can build active soil, preserving healthy worm communities and fungal networks. And you can do it while growing hyperlocal vegetables on land untouched by synthetic chemicals.
But if youâre a market farmer or reliant on a large garden for self-sustenance, the notion of selling your tiller and going no-till is, undoubtedly, pretty scary.
If youâd like to give it a go, consider starting small. Have some land to spare? Start a no-till gardenÂ bed in which you can grow something as an experiment. Or maybe till a little less space, reserving a part of your bed for no-till growing. No-till is a noble pursuit, but growing your own food in any manner is always the most important aim.
- Youâre going to want to start early, so pick your plot in fall, remove debris and large rocks, then mow it down. You probably donât have a walk-behind flail mower, but you wonât need one for small spaces. Youâre just cutting grass and weeds down to the ground. Even a reel mower can get the job done.
- Next, you need to get something on top of the freshly mowed land to kill off grass and weeds. Plants need sunlight to live, so stopping photosynthesis is the game plan here.Mulch (or compost, manure or straw used as mulch) is great because you can plant right into it. But black plastic or fabric will, when removed, reveal beautiful exposed soil after a few months. If youâre really concerned about weeds, put down wetted cardboard before you cover the plot.
- Once youâve got plants in the ground, you should aim to always be growing something in that spot. When warm-weather plants stop fruiting, cut them down at ground level (leaving roots in the dirt promotes soil health) and put your cool-weather starts into the dirt.Leaving beds empty for any amount of time presents windows of opportunity for weeds to move in, so keep your beds working with a constant supply of plants. And refresh beds with diverse plants, too. The variety will improve the soil as well as discourage plant-specific pests from setting up shop.
- What about the winter months? Brassicas such as kale and broccoli, as well as spinach and lettuce, can grow through most if not all of the cold months, especially if you use cold frames to keep frost off.But if keeping a bed planted over winter isnât possible, pull out any weeds and cover the ground with fabric, black plastic or mulch. That way, when it comes time to plant again, youâll have healthy, weed- and grass-free dirt awaiting your starts. Then, sell your tiller, because youâll have gone no-till.
This story originally appeared in the November/December 2019 issue of Hobby Farms magazine.