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Max
Carter demonstrates the residue he plants into as part of his
no-till system designed to conserve soil.
Photo by Keith Richards
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Max
Carter
Douglas, Georgia
Summary of Operation
Cotton, corn, peanuts, soybeans, winter wheat and rye on 400 acres
Conservation tillage, cover crops, innovative rotations
Problem Addressed
Severe soil erosion.
In the early 1970s, the soil on Max Carter’s farm was on the move. It
blew away on windy days and washed away during rainstorms. Like most
farmers around him, Carter cultivated each of his double-cropped fields
nearly year-round, turning over the soil and breaking up its structure
to eliminate weeds and prepare seed beds. He burned the crop residues
left on top of the soil before each planting so the “trash” wouldn’t
clog his disk or harrow. Turning and burning were considered normal
practices, even encouraged by farming experts at the time, but they
caused Carter’s loamy sand soil to erode away.
Background
Twenty-four years ago, Carter decided he’d had enough. After days of
planting when he couldn’t even see the front wheels of his tractor from
all the smoke and dust, he vowed to find another way. “I looked at all
the carbon going up in smoke, and I knew it wasn’t right,” he says.
“Too much was leaving my land.”
He retained his double-crop rotation of wheat, corn, cotton, peanuts
and soybeans, but decided to quit burning the residue on his fields
and find a way to plant into it. By eliminating burning and consolidating
tillage and planting in one field trip, Carter also hoped to shorten
the time between harvesting one crop and planting another.
“If I could get the planting dates moved up to within a week of combining,
I wouldn’t lose so much moisture at a critical time of year, and I’d
give the second crop more days to reach maturity before frost,” he says.
“Ten days can make a big difference.”
Carter opened his farm to field days and research experiments on no-till
systems; his latest collaboration looks at how to reduce chemical use
in minimum-till systems. Suddenly, farming became exciting to him again.
After years of figuring out the equipment, rotations and management
techniques that would allow him to double crop his land with almost
no disturbance of the soil, Carter is now considered one of the modern
pioneers of conservation tillage in the South, with other farmers and
researchers emulating his methods.
Focal Point of Operation
— Rotations and cover crops
Since no one in his
area had tried planting into crop residue without tilling, Carter had
to figure out his own equipment and systems. The first year, he modified
his planter with fluted coulters to create a small bare strip ahead
of the seed drill. With this strip-till rig, he planted soybeans into
wheat and rye stubble and found that it worked to his satisfaction.
Two years later,
he bought one of the first no-till planters in the area. This four-row
rig featured serrated coulters to cut the residue, followed by shanks
that ripped 14 to 16 inches into the soil to provide aeration and stability
for the roots of the next crop, and an angled pair of tires to firm
the soil for the seed drill or planter. Although he has made numerous
adjustments since, Carter still uses this piece of equipment today.
As he fine-tuned his system, cover crops became an important part of
Carter’s rotation. Even after 24 years, though, he doesn’t have a set
formula; he makes adjustments every season depending upon the markets
and weather.
Lately, Carter has rotated winter wheat and rye with his summer crops
of corn, cotton and peanuts. He either sows clover right into the corn
by air in August, or drills it into the corn stubble after harvest.
In spring, he plants the corn with his no-till rig back into the clover,
then “burns” the clover down a week or two later with an herbicide.
This same system works with cotton and peanuts.
When he rotates his summer crops with winter wheat or rye, Carter uses
an old drill to plant the winter crop directly into the cotton stubble.
A week or two later, he mows the stubble with a rotary mower and lets
the residue from the summer crops cover the ground. After the winter
crop is harvested, he comes back with the no-till rig to plant another
crop of cotton, corn or peanuts.
“There is very little disturbed ground in this system,” Carter says.
“Yet, within a few weeks of planting I’ve got a beautiful stand.”
He’s planted peanuts into corn stubble in May or into wheat stubble
in June without much affecting his yields.
Economics and Profitability
As long as he can keep his
yields stable, Carter defines profitability in his system by the amount
of inputs — fewer inputs equal more profit. Diesel fuel, equipment maintenance
costs and chemical costs have decreased, which has helped his bottom
line. And if yields stay comparable to what he got when he conventionally
tilled — and he has every indication that they will — he’ll do what’s
best for the soil.
“I get about 45 to 50 bushels of wheat or soybeans per acre, and two
tons of peanuts per acre in a good year,” he says.
Last year he averaged nearly two bales of cotton per acre. By lowering
his input costs all around, Carter says, he can keep his operation in
the black.
Environmental Benefits
Carter didn’t realize all
the benefits he would reap when he first quit tilling his soil. Most
importantly, his practices have stopped the soil from leaving his farm.
At the lower end of a field with only 3-percent slope, a fence is half
buried with eroded soil from when Carter used to till and burn. That
is an image of the past, as no fences are being covered by soil today.
The water in each of his two ponds is clear, unaffected by runoff, and
the fish are plentiful.
Soil samples analyzed by USDA’s Natural Resources Conservation Service
also showed that crop residues had boosted the organic matter in Carter’s
soils. Since the higher organic matter improved his soil quality and
water retention, he has been able to get rid of his irrigation equipment.
Higher soil quality also provides more nutrients for soil organisms,
and humus and fertility for the next crop.
Carter tries to keep chemical herbicide and nutrient applications to
one pass, before plant emergence. Although Carter now relies on spot
spraying rather than cultivation to manage problem weeds, his herbicide
use has not gone up since he switched to no-till and cover crops. He
is very careful when he applies herbicides, trying to minimize chemical
contact with soil or water.
Retaining a cover crop over the winter may be the reason Carter sees
so many more beneficial insects on the farm. Regularly, he notices lady
beetles, big-eyed bugs and predatory wasps so he recently eliminated
his use of chemical insecticides altogether.
“It seems like as I cut back on insecticides, the beneficials just increased,
and nature took over,” he says.
Carter also experiences no soil-borne diseases, which some no-tillers
might expect from a wetter, cooler soil environment. He attributes that
to his late summer plant date — around June 1 — because the soil is
warmer.
Without the smoke from burning and dust from tillage, air quality has
drastically improved around the neighborhood. And Max speaks with joy
about the quail and other birds that have returned to his land, finding
cover among the residue on his fields.
Community and Quality of
Life Benefits
For years, Carter was considered a little unusual by his fellow farmers,
so he kept a low profile about his farming practices. In fact, he did
most of his real innovations on the fields away from the road so neighbors
wouldn’t bother him. All that changed about 12 years ago.
“I was ready to retire, but then this started getting really interesting,”
says Carter, who has lived, then worked, on the farm since he moved
there in 1941 at age six.
Today, conservation tillage is sweeping the county. There are 80 members
in the Coffee County Conservation Alliance, an organization that Carter
helped organize and served as past president. His farm is a showcase
for conservation tillage, hosting numerous visitors and field days,
and he has been asked to speak at other events.
Part of the change is due to the support of county Cooperative Extension
agent Rick Reed. Once the federal boll weevil eradication program got
underway, Reed was awakened to the need to work with nature instead
of against it. Trying to dominate nature by eliminating the boll weevil
had just created a “bigger monster” with other pests, he believes.
Reed credits a strong core of innovative farmers, such as Max Carter,
as the biggest factor driving more sustainable practices.
Carter likes to tell people that he got into conservation tillage because
the old way was too much work, although one look around his well-kept
farm will tell you that he’s not afraid to put in some long days. The
truth is, conservation tillage allows him to tend to other activities
while his neighbors are out cultivating their fields during the winter
and spring.
Transition Advice
It takes patience to make a system like Carter’s work right. One spring,
Carter’s no-till planter couldn’t cut through the 4 to 6 tons per acre
of organic matter on his fields when he was trying to plant cotton.
Instead of getting frustrated and setting fire to the residue, he changed
from a fluted coulter to a wavy one. The adjustment worked, and he got
his crop in on time. Carter says one of the keys for all farmers is
to constantly fine-tune their systems.
It also helps to share information with other farmers. Field days are
invaluable, and groups like the Coffee County Conservation Alliance
can provide support.
The Future
One criticism of a minimum-tillage system is that its dependence on
chemicals instead of cultivation to control weeds harms the soil in
other ways. Sharad Phatak, a researcher at the University of Georgia
with whom Carter works, feels that many growers, even organic ones,
are just trading one set of inputs for another in an attempt to improve
their operations.
Phatak praises Carter for creating a system that is continually moving
in the right direction. Based on his research and Carter’s experiences,
Phatak believes that most chemical pesticides and herbicides can be
greatly reduced in a no-till system on all farms in south Georgia. He
is working with the conservation tillage farmers of Coffee County to
achieve that goal.
Meanwhile, Carter sees a brighter future ahead for those who follow
him into conservation practices. “A few years ago I started reading
everywhere that erosion is the farmer’s no. 1 problem,” he says. “I
thought I had lots of worse problems every day — a dead battery on the
tractor or equipment broke down or something — but they were right.
You can’t farm without soil.”
Profile
written by Keith Richards
For more information:
Max Carter
1671 Warren Carter Road
Douglas, GA 31533
(912) 384-5974
cmax@alltel.net
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