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Harmony
with Natural Laws
An
Impossible Task for Agriculture and Horticulture?
by
Paul
W. Syltie, Ph.D.
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Biological
approaches to corn production can yield excellent
results by engineering microbial nitrogen release
in the root zone. Note the biological program
on the left.
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A
few short decades ago, the thought of farmers and horticulturalists
returning to their “organic roots”, as it were, was
somewhat of a pipe dream, for our entire generation
has been conditioned to viewing soils and plant growth
through chemical eyes. Universities, the agricultural
extension service, farm and grower magazines, and advertising,
induced nearly everyone to use the new methods: commercial
fertilizers, insecticides, herbicides, nematicides,
miticides, and a plethora of other treatments that too
often spelled trouble for the health of farm and nursery
workers, the purity of ground and surface waters, and
usually the pocket book.
We
should not respond too harshly, however, against all
of these new chemical practices. Some are reasonably
innocuous, but some are downright dangerous, even when
used according to label directions. Witness the recent
case of Costa Rican banana workers whose reproductive
lives were ended due to EDB, a potent nematicide that
eventually was banned ... but not before untold damage
had been thrust upon unsuspecting human beings. Few
would argue against an approach that, if workable, would
permit farmers, nurserymen, and homeowners to worry
little about the material they use, and instead free
up their creativity to solve other management problems.
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One
of the blatant sins of soil management is overgrazing.
Controlled and rotational grazing are imperative
to preserve soils of rangelands.
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I
was fortunate to have grown up on a Minnesota dairy
farm where my family used nothing but organic methods.
That was the system most farmers in the northwestern
Corn Belt used to grow corn, wheat, soybeans, flax,
oats, and alfalfa during the 1950’s and 1960’s. With
mixed farming the rule, we would spread manure onto
our fields on a rotational basis every few years, thereby
recycling the minerals and organic matter back to the
soil. Crop yields were less than present levels, since
varieties were less productive and less responsive to
fertilizer inputs as are today’s types. Even so, the
nutritional value of the grain was high, soil conditions
were maintained at acceptable levels, yields were consistent
year-by-year, and chemical bills were nil. Most people
farmed that way in our part of the world. Few farmers
could be accused of pushing their soils beyond their
natural limitations, since most owner-operators truly
believed in stewardship: leaving the land for their
children as good as, or better than, they found it.
How things have changed! The cultivator has been largely
replaced by herbicides, organic manures by commercial
fertilizers, and natural pest control (predaceous insects,
resistant plants, etc.) by pesticides. In a very real
sense, our soils have become addicted to chemicals as
an addict has to drugs. Yet, natural laws do not change.
Some farmers and nurserymen are rediscovering these
laws of nature and using them to great advantage, much
like growers have for millennia ... despite the trend
toward bigness and efficiency (meaning replacing people
with machines or chemicals).
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To
keep soils from eroding, a mulch cover can serve
well to replace growing vegetation on the surface.
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Perhaps
it is wise and just to examine briefly the views of one
of modern history’s most ardent proponents of mankind’s
returning to natural laws in growing things. This proponent
is Sir Albert Howard, who was knighted by the Queen of
England for his work in agriculture. An ardent promoter
of composting in the first half of the Twentieth Century,
Howard was the friend of J. I. Rodale (former editor of
Organic Gardening), Lady Eve Balfour (British author
of The Living Soil 1), and many other
prominent promoters of biological soil and cropping systems
of that generation. Eric Eweson, the inventor of the Eweson
Digester, was also a friend of Sir Albert Howard. His
digester forms the heart of the Bedminster technology
for transforming municipal solid waste and sludge into
valuable, nutrient-rich compost.
In one of his books, An Agricultural Testament
2, Sir Albert asked the question, “Can mankind
regulate its affairs so that its chief possession—the
fertility of the soil—is preserved? ... On the answer
to this question the future of civilization lies.” He
shunned conventional forms of agricultural research
in favor of practical on-farm testing and was opposed
to research by teams of specialists, each working on
a fragment of the whole ... each contributing an isolated
splinter of knowledge. Sir Albert revealed how using
compost will build soil fertility independently, as
he illustrated in 25 years of practical experimentation
in India. He and other farmers in India, who eschewed
chemical fertilizers and used natural manures, had the
best crops and healthiest animals.
Sir Albert Howard listed several “methods of soil management”
which nature utilizes to conduct her affairs: 3
| 1. |
Mixed
farming is the rule; plants and animals are always
found together. |
| 2. |
The soil is always protected from the direct action
of sun, rain, and wind. |
| 3. |
Rainfall is carefully preserved in surface layers
and subsoil. |
| 4. |
The
forest manures itself , making its own humus and
supplying its own minerals. |
| 5. |
Mineral
matter needed by trees and undergrowth is obtained
from the soil. |
| 6. |
The
soil always carries a large fertility reserve. |
| 7. |
Crops
and livestock look after themselves, and maintain
health due to internal vitality imparted by the
soil. |
In
another book, entitled The Soil and Health 4,
Sir Albert Howard showed that disease is the awful consequence
of abusing the soil. As he put it, “This [disease] is
the punishment meted out by Mother Earth for adopting
methods of agriculture which are not in accordance with
Nature’s law of return. We can begin to reverse this adverse
verdict and transform disease into health by the proper
use of the green carpet—by the faithful return to the
soil of all available vegetable, animal, and human wastes.”
He further emphasized that “... the problems of the
farm and garden are biological rather than chemical.”
It is to this end that Eric Eweson, the developer of
Bedminster’s and Vital Earth’s foundational technology
for composting, directed his efforts.
To help return the organic by-products of our towns
and cities back to the land which originally grew these
food and fiber crops, Bedminster Biotechnology has been
utilizing the rotating three-chambered drum process
to produce compost in three days from raw starting materials
such as sawdust, wood chips, chicken litter, paper,
leaves, food waste, plastic bags, and sludge. The material—termed
OrganagrO—must be further aged for several weeks at
correct moisture and temperature levels, but in due
time produces a premium grade, highly fertile, pathogen
and weed-seed-free compost. Input levels of MSW and
sludge at the Sevierville, Tennessee, facility (four
drums) are about 350 tons per day, while the volume
at the Marietta, Georgia, plant is nearly double that
of the Tennessee facility. The original prototype digester
at Big Sandy, Texas, is still operating after 26 years,
producing about 45 tons per day of premium-grade compost
for horticulture.
Bedminster’s
“sister company,” Vital Earth Resources, seconds the
Bedminster philosophy by producing compost which is
used mostly in an array of horticulture soil and potting
mixes. Besides, Vital Earth produces a line of “Earth-Safe”
fertilizers and plant protection products, including
a high quality biostimulant called Vitazyme that, when
applied to agricultural or horticultural crops, speeds
growth and development, increases yields and quality,
improves crop appearance, and enhances soil characteristics
such as structural strength. These effects are achieved
not through direct fertilization of the soil but through
the activation of bacteria, fungi, algae, cyanobacteria,
and other microbes in the soil...especially within the
rhizosphere [root-zone], where soil biological activity
is multiplied intensively.
Results with a wide variety of agricultural and horticultural
crops attest to the fact that microbial inoculants are
usually not needed with this biostimulant. Microbes
are generally present in soils in great numbers, and
it simply remains the grower’s job to provide the correct
environment (moisture, temperature, fertility, and aeration)
for an appropriately adjusted population to proliferate.
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The
fruit of following biologically-sound production
principles: high yields of prime-quality produce.
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Working
with biological systems is a gentle blend of art and science,
one that requires greater patience and a higher degree
of management skill than with the use of chemicals alone.
5 While pesticides destroy the unwanted pests—insects,
mites, nematodes, fungi, or weeds—biological materials
such as compost, manure, cottonseed and other high-protein
by-products, plant residues, or biostimulants encourage
the buildup of beneficial insects, nematodes, bacteria,
and fungi over time, thus controlling the pests through
living systems. In the process, man and the environment
are not tainted by toxic chemistry.
The same may be said of fertilizer. High analysis, water-soluble
commercial fertilizers can quickly improve plant appearance,
but the quick glut of nutrients can make plants susceptible
to disease and insect attack. For instance, a high nitrogen
diet produces tall, lush, good-looking plant that have
thin cell walls and high free amino acid levels, and
are thus susceptible to disease and weather damage.
High carbon complete fertilizers of organic origin by
allowing a slow release of nutrients at the rate plants
need them, since when moisture and temperature conditions
are prime for optimum plant growth, the rhizosphere
microorganisms are also operating at their maximum,
releasing nutrients rapidly to roots as they break down
organic amendments. Not to be slighted in the vast array
of plant hormones, regulators, vitamins, antibiotics,
and other growth stimulants produced by these microbes
that feed on organic additions. As a result, internal
plant characteristics such as mineral and vitamin concentration,
protein level, the free amino acid pool, stem lignin
and cellulose content, and digestability, tend to improve
as nutrients are supplied through the gentle art of
biological soil and plant management.
These
three great qualities of organic material—(1) timed-release,
(2) complete fertility composition (including considerable
organic carbon), and (3) the ability to stimulate a
natural shield of plant protection (natural predators
and parasites of pathogens, and internal plant protection)—cannot
be matched by anything within the commercial chemical
world’s arsenal. While the biological approach takes
longer to view results following treatment, the approach
has staying power, and completes the logic that Sir
Albert Howard so eloquently voiced: we can adopt the
methods of nature and transform disease into health
by faithfully returning to the soil all available vegetable,
animal, and human wastes. The soil --> plant
--> animal --> man continuum
is an inviolable principle which operates irrespective
of our current paradigms of soil and crop management.
Soils that produce high quality plants in terms of mineral,
protein, carbohydrate, lipid, and vitamin content produce
healthy, vital animals and people that consume them.
High
carbon complete fertilizers of organic origin by allowing
a slow release of nutrients at the rate plants need.
The matter of soil conservation and soil quality should
be touched upon at least briefly since the soil is a
nation’s most valuable resource. Any practice that benefits
soil structure should be encouraged, since structure
dictates the rate of rainfall infiltration and percolation,
and thus runoff and that terrible nemesis of soil erosion.
There remains no doubt that soil microbial activity
and the abundance of polysaccharides, humic acids, and
other glues and mucilages produced by bacteria, fungi,
and algae are responsible for deterring soil erosion
and degradation. 6 Recycling of organic residues
to the soil is once more seen as not just a viable option,
but a necessity in order to preserve our most important
natural resource... the soil.
The task of improving plant growth and soil conditions
of our agricultural and horticultural world cannot be
achieved without conforming to the natural laws which
first built the fertile soil of our land. These laws
require the recycling of organic and mineral matter
back to the soils that first produced our food, feed,
and fiber. This challenge has been faced head-on by
Bedminster Bioconversion and Vital Earth. Returning
the organic residues from our cities back to the soil—not
to landfills or to other useless corners of our world—will
have a great impact on the overall health and productivity
of this nation ... or of any other nation that determines
the soil is really more precious than gold ... and organic
matter is the “heartbeat,” as it were, of the soil.
7 Harmonizing with natural laws to build
our soil resources is not an impossible task. It only
takes a commitment, a will to do what is right.
Bibliography
and Notes
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Balfour, E. B. 1975. The Living Soil and the Haughley
Experiment. Universe Books, New York, New York.
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Howard, A. 1943. An Agricultural Testament.
Oxford University Press, London, England.
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See reference 2.
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Howard, A. 1972. The Soil and Health, a Study of
Organic Agriculture. Schocken Books, New York,
New York.
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The term “biological agriculture,” though widely used,
may be substituted by the term “nature assisted agriculture,”
which Larry Finn of Bedminster Bioconversion Corporation
has termed as “...the thrust of Vital Earth Resources”
(The Vital Earth News—Agricultural Edition,
Gladewater, Texas, Vol. 1, No. 1, Summer, 1996).
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For example, as little as 0.02% of added polysaccharides
from proliferating soil bacteria and fungi can markedly
stabilize soil clay aggregates (R. C. Foster, “Polysaccharides
in Soil Fabrics,” Science, Vol. 214, November,
1981).
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For an excellent discussion on the importance of soil
organic matter for soil integrity, see Crop Land
or Waste Land
(R. Neil Sampson, 1981, Rodale Press, Emmaus, Pennsylvania).
The Vital Earth News / Agriculture Edition /
Summer 1997
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