PDC LESSON 4.7 SOIL – PROBLEMS, SIMPLY ADDING HUMUS
PERMA COURSE AGRO-ECONOMY
PDC LESSON 4.7 SOIL – PROBLEMS, SIMPLY ADDING HUMUS
Most problems with soil are solved by simply adding humus to the soil.
Therefore, we
are encouraged to grow as much mulch as possible in our garden systems. Grow
your mulch where you need it is the catch cry.
Tropical legumes such as pigeon pea, mucuna, lab lab,
crotolarias etc. plus all the grass types such as vetiver and lemon grass as
well as sugar cane are wonderful sources of mulch material. There is a vast
list to choose from in a tropical to sub-tropical climate such as ours. We
should be growing plants for mulch all over the place. When a lot of rough
mulch is chopped and dropped, manure can also be incorporated into it to speed
up the decaying process.
Earthworms are then encouraged to feast on all that
raw material; they will multiply and add their worm castings. Earthworms will
aerate and mix the soil and, in this way, poorly drained and compacted soils
can be brought to life. The minimum amount of organic matter in the form of
humus should be at least 10%. With all this organic matter the soil will carry
so much life that it simply must improve and become productive.
Text
from the roots, Elisabeth Ferkonia (Aus.) PDC studied with Bill Mollison,
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