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i) Animal manure
Most animal manure consists of feces Common forms of animal manure include
farmyard manure (FYM) or farm slurry (liquid manure). FYM also contains plant material
(often straw), which has been used as bedding for animals and has absorbed the feces
and urine. Agricultural manure in liquid form, known as slurry is produced by more
intensive livestock rearing systems where concrete or slats are used, instead of straw
bedding. Manure from different animals has different qualities and requires different
application rates when used as fertilizer. For example horses cattle, pigs, turkey etc
have different properties. [1] For instance, sheep manure is high in nitrogen and potash,
while pig manure is relatively low in both. Horses mainly eat grass and a few weeds so
horse manure can contain grass and weed seeds, as horses do not digest seeds the
way that cattle do. Chicken litter, coming from a bird, is very concentrated in nitrogen
and phosphate and is prized for both properties.
ii)Human manure
Some people refer to human excreta as human manure, and the word ‘humanure" has
also been used. Just like animal manure, it can be applied as a soil conditioner reuse of
excreta in agriculture).Sewage sludge is a material that contains human excreta, as it is
generated after mixing excreta with water and treatment of the waste water in as
sewage treatment plant
iii)Compost Manure
Compost is the decomposed remnants of organic materials. It is usually of plant origin,
but often includes some animal dung or bedding.
iv)Green manure
Green manure composes crops grown for the express purpose of ploughing them in, thus
increasing fertility through the incorporation of nutrients and organic matter into the
soil. Leguminous plants such as clover are often used for this, as they fix nitrogen
using. Rhizobium bacteria in specialized nodes in the root structure. Other types of
plant matter used as manure include the contents of the rumens of slaughtered
ruminants, spent grains(left over from brewing beer) and seaweeds. Animal manure,
such as chicken manure and cow dung, has been used for centuries as a fertilizer for
farming. It can improve the soil structure (aggregation) so that the soil holds more
nutrients and water, and therefore becomes more fertile. Animal manure also
encourages soil microbial activity which promotes the soil's trace mineral supply,
improving plant nutrition. It also contains some nitrogen and other nutrients that assist
the growth of plants.
NatalieR answered the question on May 23, 2022 at 06:46