Compost
Program Offered FREE Bins!
The Penn State Master
Gardeners of Susquehanna County will be offering FREE 1 hour composting
classes. Upon completion of the class you will be given a FREE compost
bin!
DATES and TIMES:
Saturday,
May 3rd
9:00-10:00 a.m.
Thursday, May 8th
9:00-10:00 a.m.
1:00-2:00 p.m.
7:00-8:00 p.m.
All classes will
be held at the County Office Building, 31 Public Avenue, Montrose,
Pa (downstairs conference room) To register call 278-1158. One per
household. Call now! Only 150 bins are available. The bins are supplied
by the Department of Environmental Protection as part of a
collaborative effort with Penn State Cooperative Extension in Susquehanna
County.
HOW
TO MAKE COMPOST
Composting is a technique
used to accelerate the natural decay process- The technique converts
organic wastes to a mulch which is used to fertilize and condition
soil. Leaf waste decomposes naturally in about two years. Composting
can take as long as a year or as little as 14 days, depending upon
the amount of human control.
COMPOSTABLE MATERIALS
Most yard wastes can
be composted, including leaves, grass clippings, plant stalks, vines,
weeds; twigs and branches- Compostable food wastes include fruit
and vegetable scraps, coffee grounds, eggshells and nutshells.
Other compostable materials
are hair clippings, feathers, straw, livestock manure, bonemeal
and bloodmeal.
Materials should NOT
be composted if they promote disease, cause odors, attract pests,
or create other nuisances. These include meat, fish, poultry, dairy
products, foods containing animal fats, human/pet feces, weeds with
developed seed heads, and plants infected with or highly susceptible
to disease, such as roses and peonies.
Materials that should
be composted only in limited amounts include wood ashes (a source
of lime), sawdust (requires extra nitrogen), plants treated with
herbicides or pesticides (the chemicals need time for thorough decomposition),
and black and white newsprint (composts slowly, so it should comprise
no more than 10% by weight of the total pile).
COMPOSTING REQUIREMENTS
SHREDDED ORGANIC WASTES.
Shredding, chopping or even bruising organic materials hastens decay.
One way to shred leaves is to mow the lawn before raking, collecting
the shredded leaves in the mower bag. It takes at least 3-4 cubic
feet of shredded material to form a compost pile.
GOOD LOCATION.
The compost pile should be located in a warm area and protected
from overexposure to wind and too much direct sunlight. While heat
and air facilitate composting, overexposure dries the materials.
The location should not offend neighbors.
NITROGEN. Nitrogin
accelerates composting. Good sources include fresh grass clippings,
manure, bloodmeal and nitrogenous fertilizer. Lime should be used
sparingly if at all. It enhances decomposition, but too much causes
nitrogen loss, and it usually isn't necessary unless the pile contains
large amounts of pine and spruce needles or fruit wastes.
AIR. The compost
pile and its enclosure should be well ventilated. Some decay will
occur without oxygen, but the process is slow and causes odors.
WATER. Materials
in the compost pile should be kept as moist as a squeezed sponge.
Too little or too much water retards decomposition. Overwatering
causes odors and loss of nutrients.
BUILDING AN ENCLOSURE
Enclosing the compost
pile saves space and prevents litter. The enclosure should be collapsible
or provide an entry large enough to permit the pile to be turned.
It should measure at least 4'X4'X4' (a pile under 3 cubic feet generally
does not decompose properly), but no taller than 6' (too much weight
causes compaction and loss of oxygen). The enclosure can be built
of wood, pallets, hay bales, cinder blocks, stakes and chicken wire,
or snow fencing. Prefabricated compost bins are also available.
BUILDING THE PILE
Aside from the basic
requirements for decomposition and preventing odors and other nuisances,
there is no set method for building a compost pile. One technique
may be faster than another, but a variety of methods work well.
Piles can be built in layers to ensure the proper proportion of
carbon (e.g., leaves, woody materials) to nitrogen (grass, fertilizer),
but the layers should be thoroughly intermixed after the pile is
built.
MAINTENANCE
Turning and mixing the
pile with a pitchfork or shovel; or shifting it into another bin;
provides the oxygen necessary for decomposition and compensates
for excess moisture. A pile that is not mixed may take 3-4 times
longer to decompose. Recommendations for mixing the pile vary from
every 3 days to every 6 weeks. More frequent turning results in
faster composting. Odors indicate that the pile is too damp or lacks
oxygen, and that more frequent turning is necessary.
Occasional watering may
be necessary to keep the pile damp, especially in dry weather. Covering
the pile with black plastic reduces the need for watering; it also
prevents rainwater from leaching out the nutrients. A pile that
is decomposing properly should generate temperatures of 140°-160°F
at its center. The heat kills most weed seeds, insect eggs and diseases.
The pile should be turned when the center begins to cool. Turning
the pile maintains the temperature and ensures that all material
is exposed to the center heat. When the compost is finished, the
pile will no longer heat up. Small amounts of fresh materials may
be added but should be buried inside the pile to avoid pests and
speed composting. It is better to add fresh materials to a new pile.
FINISHED COMPOST
Finished compost is dark
brown, crumbly, and has an earthy odor. Depending upon seasonal
temperatures, a well-built, well-tended pile generally yields finished
compost in 2 weeks to 4 months. An unattended pile made with unshredded
material may take longer than a year to decompose.
SAMPLE INSTRUCTIONS
FOR FAST COMPOSTING
shredded leaves
(about 2/3 by volume)
fresh grass clippings
(about 1/3 by volume, or slightly more for faster decomposition)
kitchen scraps
(grind in blender)
Begin the pile with a
411 layer of leaves. Add a 2" layer of grass dippings. Repeat
the layers until the pile is about 4' high, then add the kitchen
scraps. Chop vertically through the pile with the tines of a pitchfork
to thoroughly bruise and mix the materials. Add just enough water
to moisten the pile, then cover it with a black plastic garbage
bag. Using the same chopping technique, turn the pile on the second
day after the pile is built, again on the fourth day, then every
three days until the compost is finished. Except in dry weather,
no further watering should be necessary. The compost should be finished
in about two weeks.
ALTERNATE COMPOSTING
METHODS
Compost can be made in
a garbage can. band or drumthat has a secure lid. Drill holes
in the sides and bottom of the container to allow for air circulation
and water drainage, and place it upright on blocks- Fill 3/4 of
the container with organic wastes, add a little nitrogenous fertilizer
(about 1/4 cup for a 55-gallon barrel), and moisten the materials.
Every few days shake the container or turn it on its side and roll
it to mix the compost. The lid should be removed after turning to
allow air penetration. This method yields finished compost in about
2-4 months.
Another method is to
use a 30 or 40 gallon plastic garbage bag. Fill the bag with organic
materials, nitrogen and lime (one cup per bag helps counteract addity
caused by anaerobic composting). Shake well to mix materials. Add
about 1 quart of water and close the bag tightly. Bags can be stored
outdoors in the summer and in a heated basement or garage during
the winter. No fuming or additional water is necessary. The compost
should be finished in about 6-12 months.
FOR MORE INFORMATION
Questions about composting
may be addressed to your DEP regional office or to the central office
in Harrisburg.Books containing detailed information can be found
in bookstores, lawn and garden centers, and your local library.
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