Need
nourishment?
Coffee forests not only protect the soil,
they help nourish it. The roots of shade trees reach deep into
different soil layers bringing up a variety of nutrients that
are then transported to the leaves.
Besides, shade trees constantly
drop their leaves creating a dense layer that infuses the soil
with nitrogen. This natural fertilization accounts for more than
30 percent of the nitrogen requirement of coffee plants.
Inga
shade trees, for example, can provide the soil with up to 20
tons of leaf matter per hectare; infusing the soil with over
274 pounds (124 kilograms) of nitrogen during the rainy season
and 147 pounds (67 kilograms) during dry periods.
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