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Re: rototilling
May I address the issues of Tilling v.s. non-tilling and the use of
Mycorrhizal on behalf of 90% of the world's population, who do not have the
luxuries we here in America enjoy?
In many parts of the world the only practical way to get rid of weeds is to
cultivate the ground - whether with plow, harrow, tiller, shovel, or
whatever. Herbicides are out of the question due to their cost, and hoe-ing
or weeding by hand are not effective. And for the same financial reasons
commercially purchased Mycorrhizal is also not a realistic possibility for
them.
We have gone into many villages where the native people were barely
subsisting on a single vegetable, such as sweet potato, that took them
almost 2 years to grow, and where the weeds were ubiquitous and the children
nearly starving.
In just 6 to 12 weeks, using good basic cultural practices such as proper
cultivation of the soil, preparation of planting beds, feeding natural
mineral nutrients to the plants, proper watering, and weeding the people
were enjoying a wide assortment of healthy vegetables the likes of which
they had never even seen before.
And in doing so we have introduced health and prosperity to thousands of
families who were despairing of even having food to eat. In bringing this
to your attention I'm not asking for plaudits, only understanding of what I
consider to be the larger and more important issues - of life and death that
are happening all around us!
I would plead with those of you who are educating the wealthy 10% to tell
them the plight of the other 90%! And then encourage your readers to help
others learn and obtain a healthy living standard in the most practical way
possible. And what is that? Go and Teach and Show them the way! Our
projects, for example, are for a minimum of three months - full time, with 2
hours a day in the class and 4+ hours in the garden, and our students finish
with a practical working knowledge of vegetable production, from seedling
production to selling their produce, and their income is increased manifold.
How can we sleep smugly in our beds and bicker over trivia while most of the
world is starving? Please look at the charitable Food For Everyone
Foundation's website at www.foodforeveryone.org and see if you can do
something to make a difference for good in the world.
Sorry for the lecture, but thanks for "listening"
Jim Kennard, President
----- Original Message -----
From: "Lee Reich, PhD" <springtown@netstep.net>
To: <Gardenwriters@topica.com>
Sent: Saturday, April 06, 2002 5:08 AM
Subject: Re: [GWL]: rototilling
> On Lon Rombough's suggestion, rather than keep writing back about tilling
and non-tilling, I've instead excerpted a short
> part of my book, WEEDLESS GARDENING, where I talk about benefits of
leaving soil undisturbed. For background, the WEEDLESS
> GARDENING I talk about is not only the title of the book but also the four
part system for taking care of the soil. The book
> is available for only $9, but if I feel the need more words from this book
will ply the electronic thoroughfares. What I have
> done in WEEDLESS GARDENING is to try and translate some soil science into
something practical, readable, and backed up by my
> own thirty years of getting my fingers into the dirt... whoops, soil.
>
> Lee Reich, PhD
>
>
> THE BENEFITS
> The most obvious appeal of WEEDLESS GARDENING is dispensing with the
annual ritual of turning over soil. No more wrestling a
> rototiller up and down garden rows. No more making arrangements for
someone to plow. Gone are the repeated thuds of your
> garden spade coming up against rocks in rocky soil. Forget about needing
that "iron back, with a hinge in it," suggested as
> the ideal anatomy for a gardener by Charles Dudley Warner in My Summer in
a Garden (1870).
> Dispensing with digging also means being able to get plants and seeds
into the ground sooner. One reason for digging in
> spring is to kill existing vegetation, be it weeds, a deliberately planted
"cover crop," or, for a new garden, lawn grass.
> That digging is followed by a burst of biological activity in the soil as
bacteria and fungi, fueled by a shot of air, gobble
> up chopped up roots, stems, and leaves. It's too much commotion for seeds
and small plants, so planting must be delayed for a
> couple of weeks until microbial activity settles down. Another run over
the ground is sometimes needed to break up the soil
> and plants even more, causing a delay of another week or two.
> Not having to dig the soil in spring also means not having to delay
planting because of wet soil. Digging a wet clay soil
> transforms it into a compact material better suited for sculpture than
plant growth. The frustration is twofold; planting is
> delayed until the soil is dry enough to dig, and after planting, you must
wait for rain to get seeds and plants growing. Skip
> the digging and all that's needed in spring is to drop seeds or nestle
plants into the ground.
> Leaving soil undisturbed in spring even helps plants quench their thirst
later in the season. Earthworms, roots of various
> dimensions, even the action of freezing and thawing all work together to
create interconnecting large and small pores within
> which air and water move and new roots grow. Gravity quickly empties large
channels of excess water, drawing air in, yet
> small pores of capillary dimensions cling to water against the pull of
gravity. As long as these pores stay intact, water can
> move within them down, sideways, even up, to replace water that nearby
roots drink in.
> Another benefit of not turning the soil is to keep organic materials on
the surface. There, they can provide soft landing
> for raindrops, allowing moisture to soak in rather than run off and water
your lawn or your neighbor's garden. Organic
> materials at the soil's surface also temper the effects of winter cold and
the sun's heat, and slow water evaporation. If you
> mix organic materials into the soil or bury them down deep, they cannot do
their job of protecting the soil surface.
> Not tilling also avoids creating a so-called plowpan, or hardened layer
within the soil that impedes drainage. Plowpans form
> when rototillers or plows are used at the same depth season after season,
causing soil compaction just beneath the depth of
> tillage. Perhaps the greatest benefit of leaving the soil undisturbed is
that it preserves soil organic matter, including
> humus, the touchstone of any great garden soil. Digging, rototilling, or
plowing puts such a shot of oxygen into the soil
> that microbial activity is stimulated to the point of too rapidly burning
up organic matter. It literally disappears into
> thin air, most of it becoming carbon dioxide and water vapor.
> It's not that these microbes should starve. After all, plant foods are
released and a healthy microbial population is
> supported only as organic matter is gobbled up. Problems arise though when
organic matter is burned too fast, which happens
> when soils are tilled. In untilled soils topped with organic materials,
the materials are consumed at a rate that doesn't
> outstrip the rate at which they are replenished.
>
> DO PLANTS LIKE IT?
> All the information offered so far has sung the praises of WEEDLESS
GARDENING for you, me, and the soil, but what about the
> plants? How do delphiniums, rose bushes, and bean and tomato plants feel
about growing in soil that is never turned over or
> stirred up, yet is perpetually blanketed with compost, wood chips, or some
other organic mulch? The answer is-they like it.
> After all, an undisturbed soil blanketed with organic mulch becomes
increasingly rich in humus, one byproduct of the
> decomposition of organic matter. Humus is not a single compound but a
witch's brew of stuff beneficial to plants. It is to
> plants what a vitamin rich salad is to you and me-not a concentrated food,
but one offering a wide spectrum of nutrients and
> other good things. (In addition to nutrients coming from the humus itself,
it also contains substances that help nutrients
> already in the soil become more accessible to plants.) Humus is also
serves as the bulk in a plant's "diet," fluffing up soil
> with air and at the same time holding water like a sponge. Humus even
helps plants fight off pests with protective compounds
> and by supporting friendly microorganisms that fend off pathogens.
>
> JEFF LOWENFELS wrote:
>
> > re rototilling vs. not:
> >
> > I surely hope that no one is suggestion you can't get a great garden if
you
> > rototill or if you use fertilizers. That is not the point. Obviously we
all
> > have had personal experiences and know that you can have great gardens
doing
> > both. And I think we would all agree that putting organics into the soil
is
> > the only way to go as it helps build nice healthy soils. And I think we
can
> > all agree that the organic matter you put into a garden when you
rototill
> > is, after all, only as good as the microbes, bacteria, shredders and
others
> > who decay it into humus.
> >
> > Where a "Scientific Gardener" would depart is in the value of keeping
the
> > miles and miles of fungi in the average garden
> > intact and not reducing the populations of bacteria, nematodes,
protozoa,
> > worms, microarthopods, microarthopods etc in the soil which is an
obvious
> > result when you rototill. If you are like many gardeners and you run
over
> > your garden beds two or three times to get is all uniform and clean,
then
> > you actually kill off much of it.
> >
> > And, I suppose, a really Scientific Gardener would work out the math and
> > conclude that each year, despite the addition of organics into the soil,
> > there is a net carbon loss. Sooner or later the game is over like it is
in
> > many parts of the world and like it is getting to be in many parts of
the US
> > Then you HAVE to use fertilizers and the only organics in the soil are
those
> > added each year IF there is any soilfoodweb left to decay them.
> >
> > As for big gardens, surely Ruth Stout is an example. If you must have
nice
> > neat rows, simply pulling a board through the soil or a v plow would be
> > better than rototilling. "Drill" gardening is another answer. You make a
> > hole for the plant and only disturb a tiny fraction of the garden. It is
so
> > much less work and for big farms, there are mechanical planters that use
> > this principle.
> >
> > Why would one want to go through all the work to rototill? I guess I
have
> > to ask, then, why do YOU roto till? I am not trying to be cute here.
You
> > surely don't have to. Many of us have gardens which prove that. Why do
you?
> >
> > Cheers,
> >
> > Jeff L
> >
> > ______________________________________________
> > PLANT A ROW FOR THE HUNGRY: Through PAR, over 3 million pounds of food
have
> > been donated by home gardeners like you to feed the hungry. Ask me how
you
> > can join the effort.
> >
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