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27. COMPOSTING
101
Ellen Book,
Master Gardener
UF/IFAS Extension
Miami-Dade County
Master Gardener
Link to slide presentation:
http://TINYURL.com/SoilFriend
The chat box
will open at the
end of the
lecture for a
Q&A session.
51. Fill out the evaluation at the
end of the program for a
voucher
80-gallon capacity
Size:
32” diameter X 32” tall
52. Sheet Composting Top-dressing on the
soil surface like a garden lasagna right
onto a future growing space.
Trench Composting - composting
directly in the soil
Cold Bin Composting Fill your
compost bin halfway with browns and
bury kitchen scraps
Bokashi Bucket anaerobic bacteria
(grass-like inoculated bran, rice, dried
leaves sprinkled over scraps). 10 days to
ferment & “pickle” waste, forming an
acidic organic matter that must be dug
into the soil or added to a compost pile.
TYPES OF
COMPOSTING
53.
54. GREENs = nitroGen
BROWNs = carBon
NitroGen = Protein
CarBon = Energy
From: https://small-farm-permaculture-and-
sustainable-living.com/how-build-compost-pile/
58. Citrus (oranges, grapefruit,
lemons, tangerines)
Green/nitrogen - cut in half or quarter
before composting; mix with browns &
add 6-inch layer of browns on top
59. WWW.TINYURL.COM/
CANICOMPOSTIT?
Material Can I Compost? Comment
Banana skins Yes
Bird cage "waste" Yes
Bone meal Yes
Bread Yes
Cereal Yes
Citrus (e.g., oranges,
grapefruit, lemons,
tangerines)
Yes
Green/nitrogen - must cut in
half or quarter before
composting; mix with
browns & add 6-inch layer
of browns on top
Coffee grounds (with paper
filter)
Yes Green/nitrogen
Corn cobs Yes
Cornmeal Yes
Cottonseed meal Yes
Crop waste Yes
Egg shells Yes Adds calcium
72. AS PILE TEMPERATURES &
TIME IS NEEDED FOR VARIOUS
MICROORGANISMS TO COLONIZE
73. Left: (1 year old) Last year’s material all garden stuff, grass & leaves,
kitchen: banana peels veg. trimmings from the pile’s top.
Middle: (2 years old) bottom of this year’s pile put into bags
Right: (3 years old) Finished product from the bags to be used in the
garden & greenhouse this year
GUESS WHERE THIS
COMPOST WAS MADE?
89. Vermi-Composting Definitions
• Vermiculture – Work farming process of
culturing worms to decompose organic food
waste, turning it into nutrient rich material
• Casting – Worm waste, digested food
• Omnivores – Animals that eat plants and
animals
• Hermaphrodites – Animals with male and
female sex organs.
http://clipart-library.com/
91. Contains
• 5Xs the available nitrogen
• 7Xs the available potash
• 50% more calcium
than 6” of good top soil
• Water soluble nutrient immediately available for
plant intake.
Will not burn root system unlike fresh raw manures
Red Wigglers
UF/IFAS
93. 1) I'm having problems with
my compost system and I'm not
sure of the cause. What should
I do first?
a. Add water
b. Add browns/carbon rich
material
c. Turn the compost
94. 1) I'm having problems with
my compost system and I'm not
sure of the cause. What should
I do first?
a. Add water
b. Add browns/carbon rich
material
c. Turn the compost
95. 2) My compost smells bad and
I turned it yesterday. What can I
do?
a. Add bulky browns/carbon-rich
material
b. Add greens/nitrogen-rich
material
c. Add water
96. 2) My compost smells bad and
I turned it yesterday. What can I
do?
a. Add bulky browns/carbon-rich
material
b. Add greens/nitrogen-rich
material
c. Add water
97. 3) My pile won't heat up, but I have
the proper volume of material
(approximately 1 cubic yard), enough
oxygen (aeration), and a good balance
of carbon to nitrogen (approximately
30:1). What can I do?
a. Add lime
b. Add moisture
c. Add potting soil
d. Add clean wood ash
e. All of the above
98. 3) My pile won't heat up, but I have
the proper volume of material
(approximately 1 cubic yard),
enough oxygen (aeration), and a
good balance of carbon to
nitrogen (approximately 30:1).
What can I do?
b. Add moisture
99. 4) What can I do about flies in my
compost?
a. Spray with pesticide
b. Create a separate pile for kitchen
scraps
c. No need to act
100. 4) What can I do about flies in
my compost?
a. Spray with pesticide
b. Create a separate pile for
kitchen scraps
c. No need to act
101. 5) How can I compost in my
high-rise condominium or
apartment?
a. With a compost bin
b. With worms
c. With the in-sink disposal
102. 5) How can I compost in my
high-rise condominium or
apartment?
a. With a compost bin
b. With worms
c. With the in-sink disposal
103. 6) What is the optimal size of a
composting system?
a. The bigger, the better
b. Long and narrow
c. About 3 feet high by 3 feet long
by 3 feet wide
104. 6) What is the optimal size of a
composting system?
a. The bigger, the better
b. Long and narrow
c. About 3 feet high by 3 feet long
by 3 feet wide
105. 7) What can be used as a catalyst or
inoculant to get my compost pile
started?
a. Finished compost
b. Large pieces left over from screening
compost
c. Small amount of organic top soil from
the yard
d. Commercially prepared inoculant
e. All of the above
106. 7) What can be used as a catalyst or
inoculant to get my compost pile
started?
a. Finished compost
b. Large pieces left over from screening
compost
c. Small amount of organic top soil from
the yard
d. Commercially prepared inoculant
e. All of the above
107. 8) How do I get rid of fire ants
in my compost pile?
a. Leave the pile alone
b. Water and turn the pile
c. Spray the pile with pesticide
108. 8) How do I get rid of fire ants
in my compost pile?
a. Leave the pile alone
b. Water and turn the pile
c. Spray the pile with pesticide
109. 9) When is the compost
finished?
a. After 6-8 weeks
b. When the compost appears dark,
crumbly, and looks and smells like
soil
c. When the pile temperature
exceeds 131 degrees F
110. 9) When is the compost
finished?
a. After 6-8 weeks
b. When the compost appears dark,
crumbly, and looks and smells like
soil
c. When the pile temperature
exceeds 131 degrees F
111. 10) What determines how long it takes for
organic material to become useful
compost?
a. Size of materials place into composting
system
b. Carbon-to-nitrogen (C:N) ratio of materials
place into composting system
c. Level of management/attention paid to the
composting process
d. Intended use for finished compost
e. All of the above
112. 10) What determines how long it takes for
organic material to become useful
compost?
a. Size of materials place into composting
system
b. Carbon-to-nitrogen (C:N) ratio of materials
place into composting system
c. Level of management/attention paid to the
composting process
d. Intended use for finished compost
e. All of the above
113. 11) Must I cover the compost bin?
a. Yes
b. No
114. 11) Must I cover the compost bin?
a. Yes
b. No
115. 12) What items may harm my worms if
added to my vermi-composting system?
a. Alcohol or vinegar
b. Coffee grinds
c. Oranges or other citrus
d. All of the above
116. 12) What items may harm my worms if
added to my vermi-composting system?
a. Alcohol or vinegar
b. Coffee grinds
c. Oranges or other citrus
d. All of the above
117. 13) It I can't compost it, what can I do with
it?
a. Reduce
b. Reuse
c. Recycle
d. All of the above
118. 13) It I can't compost it, what can I do with
it?
a. Reduce
b. Reuse
c. Recycle
d. All of the above
119. 14) Must I use a manufactured composting
bin?
a. Yes
b. No
120. 14) Must I use a manufactured composting
bin?
a. Yes
b. No
121. 15) What is the lowest-cost backyard
composting system?
a. Pile, trench, and sheet composting
b. Manufactured bins
c. Self-made bins
122. 15) What is the lowest-cost backyard
composting system?
a. Pile, trench, and sheet composting
b. Manufactured bins
c. Self-made bins
123. 16) What best accelerates the
decomposition of oak leaves?
a. Water the pile
b. Turn the pile twice a week
c. Shred leaves before adding to the compost
d. All of the above
124. 16) What best accelerates the
decomposition of oak leaves?
a. Water the pile
b. Turn the pile twice a week
c. Shred leaves before adding to the compost
d. All of the above
125. 17) How can I accelerate the compost
decomposition process?
a. Active management of the compost system
b. Building a bigger pile
c. Adding a compost starter/inoculant/catalyst
d. None of the above
126. 17) How can I accelerate the compost
decomposition process?
a. Active management of the compost system
b. Building a bigger pile
c. Adding a compost starter/inoculant/catalyst
d. None of the above
127. 18) How much time does it take to make
compost?
a. One hour per day
b. One hour per week
c. One hour per month
d. As little or as much time as I want
128. 18) How much time does it take to make
compost?
a. One hour per day
b. One hour per week
c. One hour per month
d. As little or as much time as I want
129. 19) Hot composting and vermi-composting
are compatible?
a. True
b. False
130. 19) Hot composting and vermi-composting
are compatible?
a. True
b. False
131. 20) How does composting affect soil pH?
a. Makes soils more acidic
b. Makes soils more basic
c. Has a buffering effect
132. 20) How does composting affect soil pH?
a. Makes soils more acidic
b. Makes soils more basic
c. Has a buffering effect
133. 20) How does composting affect
soil pH?
c. Has a buffering effect
In general, compost has a buffering effect on soils. Compost
made from acidic materials, such as pine needles or oak
leaves, may have a slightly acidifying effect on soils. Because
many soils in Florida are slightly basic, there is rarely a need to
add lime to neutralize even acidic composts.
136. Evaluation
& Voucher
Link to slide presentation:
https://TINYURL.com/SoilFriend
Vouchers will be accepted
starting on Wednesday,
August 4, 2021
The link will be up until
Monday at 8:00am.
Vasquez,Laura A
lavasquez@ufl.edu
