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Black
Gold for your Soil !!
General Information:
Composting is the single most important activity for
successful gardening. Vegetation and animal manures
decompose with the help of bacteria, fungi, & other
microorganisms. The result is a rich earthy layer of pure
organic magic. Compost attracts the mighty, sought after
earthworm which in sufficient numbers make our work much
easier. It also encourages the growth of beneficial
microorganisms which greatly help the development of
stronger, healthier plants. It provides needed nutrients and
improves the soil ability to nourish your growing plants. It
promotes better drainage in heavy clay soil allows sandy
soils to retain needed moisture. Compost is actually organic
slow release fertilizer. In addition composting relieves
some of the pressure on overburdening the landfill.
How to make Compost:
Making compost can be a as easy or hard is you want it to
be. Compost will actually make itself if given enough time.
There are many ways to produce acceptable compost. It can be
made in a bin, a tumbler, windrows, Lasagna Sheet
Composting also known as "Interbay Mulch", garbage can
composter (with holes), plastic bag composters, cinder block
containment bins, heaps, or pits. All methods require good
drainage. The ideal minimum size for a compost pile is a
cubic yard (3 ft. by 3 ft. by 3 ft.). Position the compost
pile where it will be protected from drying winds in the
winter, and hot, direct sunlight in the summer. If a sunny
spot is used cover the pile with an opaque plastic tarp to
minimize drying. This will increase the temperature and aid
in killing weed seed and pathogens, accelerating the
process. In addition a cover will provide protection from
soaking rains which can sour a pile ,and maintain the proper
moisture content.
The basic ingredients used
to produce compost are organic matter that go into the
building of a compost pile.
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Materials containing
high in carbon known as browns. Consisting of woody dry
materials such as dry grass clippings, dry leaves,
woodchip, sawdust straw, hay, rice hulls, shredded
newspaper, dry corn cobs and corn stalks . Older more
mature material is higher in carbon content. Anything
that once growing was vegetation.
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Materials high in
nitrogen content known as greens. Consisting of green,
wet materials like fresh grass clippings, kitchen
wastes, fresh green weeds, kitchen vegetable waste,
shredded newspaper, green vegetable garden waste and
manures. The greener the material, the higher the
nitrogen content. Anything once vegetation still
containing its moisture. Ammonium Nitrate fertilizer can
also be used as a nitrogen substitute @ 1 cup per square
yard of carbon materials.
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Do not compost meat scraps and fatty
foods, excessive wood ash, sawdust in large quantities.
Fresh animal manure should be allowed to age in the
elements, too wash excessive salts and urine from the
contents before adding to the compost pile.
High carbon browns ingredients are usually
most readily available for composting. To ensure the proper
balance of materials it is critical to match the
percentages of carbons to green in the appropriate ratio.
The mixture should be mixed at approximately 30 to 1
carbon-to-nitrogen ratio. The most efficient decomposition
requires an adequate supply of oxygen and the correct amount
of moisture. The first technique is to construct your
compost pile in layer cake fashion to provide good
ventilation and drainage. begin your pile by selecting a
good permanent location. The pile should be located on high
ground to allow proper drainage. Till the soil where the
pile will be placed to make it inviting to worms. Start
layering the pile with with course woody material such as
small sticks or twigs. ( Don't worry they will rot. ) The
second technique is to turn the compost pile periodically -
once or twice a month. By thoroughly turning the pile
inside out, you guarantee a sufficient supply of oxygen and
the composting process is accelerated. In a well-built and
aerated compost pile, the process of decay generates a lot
of heat, up to 150°F (66°C). This high heat is crucial for
killing any weed seeds and pathogens and for accelerating
the decay process. Monitor the temperature of the compost
pile with a compost thermometer. Turn the pile after the
temperature has peaked and has begun to cool down. Water is
also vital to a compost pile, because the microorganisms in
the pile depend upon it for their metabolism. A compost
pile that is too dry will not break down efficiently; a
compost pile that is too wet will interfere with oxygen
availability and become anaerobic. As you construct the
compost pile, dampen each layer; as a rule of thumb, the
compost should have the feel of a damp sponge. If water
drips out of it when squeezed, you have too much water. Wet
leaves or green kitchen scraps, may be wet initially, and do
not need additional watering. Continue adding materials as
they become available.
Compost bins:
The
most common method of composting is
produced in a composting bin. The bin can be any large
container which allows drainage and aeration of the
components. It can be made of wood, plastic or metal wire. I
would advise caution using pressure treated lumber in the
construction of your compost bin. Pressure treated lumber is
treated with arsenic, over time it will leach into you
compost and soil. Old discarded oak pallets work very well.
They can be easily nailed or wired together. Metal wire with
small holes is by far the material of choice for bin
construction. Mine is constructed from concrete
reinforcement wire covered with chicken wire shown above.
Tumblers:
Compost
tumblers are much easier to manage the
moisture & oxygen content and much less labor intensive.
Commercial tumbler are available but a bit pricy in my
opinion. Tumbler will also produce compost several time
faster than the other two methods mentioned. my tumbler will
produce 3 batches per year with great success. My tumbler is
constructed from two 55 gallon barrels welded together.
Mounted on a pressure treated lumber frame which allows easy
turning. However it would work just as well if rolled across
the ground. See image above.
Heaps:
Heap
ccomposting is simply composting
without a enclosed structure. Mine is enclosed on three side
with chicken wire to keep it in place. Organic material can
be added as it becomes available. For best composition the
pile should now exceed 4 feet tall when started. The length
can be a long as you desire. I do not turn this pile as it
is used from mulch and adding to the other two composters.
It is positioned under a large Oak tree which keep it moist
at all time. I usually use my leaf shredder to shred the
leaves for covering my bedding plants and flower beds.
Garbage can composter:
A garbage-can composter is inexpensive and easy to build.
However, the disadvantage of a garbage can composter is that
the materials within the unit are difficult to turn. For
best composition place both brown and greens in the can. To
each batch add 1 cup of ammonium nitrate fertilizer and ¼
cup of hydrated lime. The lime will counteract the acidity
which will occur within the can Moisten the contents as
filled, seal the can and allow to sit for 1 year. You can
pour the contents on a sheet of plastic to mix twice a
month. Then place the contents back in the can. occasionally
to keep the ingredients active. Place the can in the sun to
absorb heat. In winter move the can to a warm garage or
basement. This method requires patients. Check moisture
content often as the content dry quickly.
Plastic bag composting:
Plastic bag composting is perhaps the simplest method of
composting requiring no structure other than a black plastic
bag. The bags should be at least 30 to 40 gal. and at least
3 ml. thick. This bag will hold about 3 bushels of organic
matter. For best composition place both brown and greens in
the bag. To each bag add 1 cup of ammonium nitrate
fertilizer and ¼ cup of hydrated lime. The lime will
counteract the acidity which will occur within the bag. Then
add about 1 qt. of water, seal the bag and allow to sit for
1 year. You can roll the bag occasionally to keep the
ingredients active. Place the bag in the sun to absorb heat.
In winter move the bag to a warm garage or basement. This
method requires patients.
Lasagna or sheet composting:
Also known as "Interbay Mulch". This
involves putting the materials directly on the beds to be
enriched. This is a very simple method. There are many
folks just discovering and improving" on this method that
has been called a number of things in the past. Start by
applying several layers of common black and white newspaper
on top of your beds. Layer a mix of greens and browns as if
making lasagna and let it sit and decompose in place.
Thoroughly water the bed and cover the entire bed with 6 ml
black plastic. Hold the plastic down with bricks or stakes.
The plastic will solorize the soil in the process.
Solorization of soil is the process of destroying insects,
plant diseases, nematodes, harmful fungi, and weed seeds.
The temperature will rise to 150°, 12"
to 16" deep. This must be done in mid summer to allow enough
heat to do the job. This is a great method of putting
vegetable beds "to sleep" for the season ensuring a rich
fertile bed for the next seasons planting. You can also use
this method to prep grassy areas and transform them to
planting beds. When you pull back the plastic in spring the
soil in your beds will be warm and ready work and plant.
Avoid Using Compost Before It Is Ready:
Do not use incomplete compost as a soil conditioner before
it is ready. If the organic materials have not completely
decomposed the plants growing in the amended soil may do
poorly and become stressed, As the decomposition process
continues. The incomplete compost will leach the nitrogen
you intended for you plants. Compost is usually considered
finished when the contents are no longer recognizable.
Finished compost should have a dark, crumbly earthy odor.
Using compost:
Spread an inch or two over the planting area and mix into
the top six to eight inches of soil. Do not place compost in
individual planting holes it may act like a sponge, holding
excess moisture discouraging roots growth away from the
plants base. Compost will slowly release nutrients to the
plants while protecting roots from temperature fluctuations.
Avoid disturbing or injuring the roots of established plants
when adding compost.
Mulching with
Fall Leaves:
Do as mother nature does, use leaves to mulch all your
vegetable and flower beds in addition to composting them,
Mulches help hold moisture in our soils and prevent wet and
dry fluctuations in soil moisture. They discourage weed
growth and soil borne diseases in and around beds. They also
help insulate the soil and protect the roots from intense
summer heat and winter blasts. I prefer Shredded leaves as
they stay seated better on the surface as apposed to whole
leaves. They don't blow away as easily. If you don't have
a shredder, use a lawn mower to chop up your leaves.
Compost tea:
Compost can be made into a liquid plant food or foliar feed.
Compost Tea is a naturally rich, well-balanced, organic
plant food made by steeping aged compost in water. Once your
compost is made, simply obtain a large container like a
barrel or large leak-proof garbage can with a lid. Place the
compost in a bag constructed from burlap, cheese cloth or
legs of old panty hose which will allow water to freely flow
through the bag and compost. Loosely fill the bag with
compost and tie the opening securely. This can be
accomplished by simply tying the burlap bag closed with a ¼"
cord 4' long allowing the end to hang outside of the
container. Use the cord to pull the compost filled bag
up-and-down in the water to forge water to freely flow into
the compost and mix the contents. place the compost filled
bag into your container and fill with water. place the
filled container in full sun and allow to steep for 2 week.
This steeping time is crucial to the formation of beneficial
bacteria and the required fermentation process. Agitate the
contents daily to allow completed saturation of the
compost. Keep the container covered preventing it from
overflowing in case of a unexpected rain and evaporating
from exposure to the sun. The bag containing the compost
should occupy about ¼ of the total volume of the of the
container. After the mixture has steeped for 2 weeks or more
remove the liquid dip out and dilute at the rate of 3 parts
water to 1 part tea with clear water. The compost teas can
then be used as a weekly root feed or foliar spray. When all
the liquid is used refill the container and start the
process all over. The bag filled with compost can be reused
many times. Foliar spraying should be done late in the day.
It should be noted that manure tea and compost tea are not
the same, although made the same way. Manure teas are not
recommended as a foliar feed. However manure teas make a
great root feeding supplement. |