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Grass provides food for animals that in turn provide food for us.
On the other hand, on a domestic scale, it requires eradicating
from patios and, if we encourage the lawn to grow by using
fertilisers, we complain when we have to cut it. Agricultural grass
is not usually berated for growing too enthusiastically, unless of
course it is growing as a weed in another crop. The aim is generally
to grow as good grass as is possible on a given area and then feed
it as effectively as possible to an animal that will convert it into
meat or milk or simply into more animals. This kind of grassland
falls into one of two basic categories: permanent pasture or new
leys.
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