agriculture
animal
animal waste
b
bacteria
bacterium
biology
ca
cheap price
compost
crap
cu
degradation
dirt
disease
dressing
dung
excrement
farm
farming
fe
fertilizer
germ
industry
k
livestock
manure
mg
microbe
microorganism
mn
n
nature
nitrogen
organic
outdoor
p
phosphorus
pig manure
pig manure compost
pig poop
pig waste
plant nutrients
rural
s
swine
two kinds of animal droppings
waste
zn