Jatropha Curcas
Linneus is a little known plant species in New Zealand. The plant
is grown to about 3 meters high and produces seed that contain an
inedible vegetable oil that is used to produce biofuel.
New Zealand
has to catch up with countries that produce Jatropha as a source of
fuel as there is a looming danger of using edible crops to meet our
biofuel demands. This creates a moral issue where the food price ultimately
becomes linked to the price of fuel, the results of which are self
explanatory.
Each Jatropha seed
produces between 35% and 37% of its mass in oil. Whereas we are all
aware of the Governments directive that requires a minimum level of
biofuel as a proportion of fuels sold, there are insufficient
sources of raw material (feedstock) for making biodiesel and other
biofuel for all motor vehicles. However the Jatropha plant has many
benefits for farmers and supply to the country as a whole.
It is drought
resistant.
It can be grown
almost anywhere - even in sandy, saline, or otherwise infertile soil.
It adapts well to marginal soils with low nutrient content.
It is relatively easy to propagate.
It is not invasive,
damaging, or spreading like gorse.
It is capable of
stabilizing sand dunes, acting as a windbreak or combating desertification.
It naturally repels
insects and animals do not browse it.
It lives for over
50 years producing seeds all the time.
It is frost hardy
(does not like hard freezes)
It does not exhaust
the nutrients in the land.
It does not require
expensive crop rotation.
It does not require
fertilizers.
It grows quickly
and establishes itself easily.
It has a high yield
No displacement of
food crops is necessary.
It is great for
developing countries in terms of energy and jobs.
The biodiesel
byproduct, glycerin, is profitable in itself.
The waste plant
mass after oil extraction can be used as a fertilizer.
The plant itself recycles 100%
of the CO2 emissions produced by burning the biodiesel.