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Q & A
What’s Composting?
It is a
natural process of decomposition, i.e. the breakdown of raw
organic materials into finished compost. It is a gradual and
complex chemical and biological process where organic
matters are decomposed into compost.
Composting
process is generally divided into two:-
i)
AEROBIC (with oxygen) decomposition and stabilization.
ii)
ANAEROBIC (without oxygen) decomposition.
In both of these processes, bacteria, fungi, molds,
protozoa, actinomycetes, and other saprophytic organisms
feed upon decaying organic materials initially, while in the
later stages of decomposition mites, millipedes, centipedes,
springtails, beetles and earthworms further breakdown and
enrich the composting materials.
Technological control over temperature and its environment
will produce varying levels of biological activities and
types of organisms. The goal of technological intervention
is to create the most favorable environment possible for the
desired organisms.
Why Composting?
Compost as soil conditioner has the following advantages:-
§
Preserve
and recycle nitrogen, phosphorus, and potassium.
§
Provides
essential plant micronutrients.
§
Can reduce
the need for pesticides.
§
Increases
water holding capacity.
§
Increases
aeration and drainage for clay soils
Why Organic Fertilizer?
Global Market Trend
(i)
International
Fertilizer Supply and Demand is increasing drastically
especially in Asia and Latin America
The
global economic conditions throughout 2007 remain in firm
footing despite the threat of the weakening housing market
in the USA. This is to a large extent supported by strong
growth in the emerging Asia. Growth of world GDP is assessed
at 4.9% for 2008.
In the medium term, global economic growth remains firm,
with annual rates lower than those observed since 2004, but
is expected to harbor above 3%.
The
favorable economic climate appears to have a positive
bearing on global fertilizer consumption scenario.
According to the International Fertilizer Industry
Association, France (IFA), the fertilizer industry has
started a new demand-driven cycle, supported by an
exponential growth in bio-fuels crops and a recovery in
fertilizer use in the main consuming regions. Grain
consumption is rising, driven by strong demand for food,
feed and bio-fuels production, leading to very tight grain
market conditions and a severe contraction of the world
stock-to-use ratios well below critical levels.
From 2001 through 2006, global nitrogen demand has increased
by 14 percent, phosphate demand grew by 13 percent and
potash demand grew by 10 percent.
In 2006
alone, global fertilizer consumption expanded by a massive
increase of 6 million tons nutrients, providing a strong
foundation for a sustained 2.7 per cent annual growth rate
between 2007 and 2011. The bulk of the increase in demand is
occurring in Asia and Latin America.
India, China and Brazil are leading the pack as the largest
contributors to the growth in global nutrient demand. This
growth is being driven by rising incomes in these countries,
as people spend more to improve their diets by way of
food
diversification towards more meat, fish, fruits, vegetables,
sugar and vegetable oils and less cereals and pulses per
capita. More meat production will require greater amounts of
coarse grains and oilseed meals. Fruit and vegetable
production expands also very quickly. For instance, in
China, the area planted with fruits and vegetables increases
on average by more than one million hectares (Mha) every
year, reaching today some 32 Mha. Production of fruits,
vegetables and other labor-intensive cash crops expands
quickly in India as well.
This increase in international demand for fertilizer has
been a major factor in the rising cost of fertilizer.
(ii)
Bio-fuel Factor
The
surge of crude oil prices to record high over the last few
years has a dual effect on fertilizer demand:

§
It
impacts fertilizer prices on one hand, and
§
Stimulates bio-fuel production on the other hand
.
In the
United States, the ethanol sector that uses corn as its main
feedstock is expected to double in the coming years. Higher
corn prices are encouraging farmers to plant even more corn
and use more fertilizer to enhance production. All grain
prices have risen as a result.
Current
estimate put it at 17% of the domestic maize output are now
served for ethanol production in 2005/06, and that this
share would jump to almost one third in 2007/08.
Because
of the very fast expansion of the US ethanol industry, and
the European biodiesel industry, and of the huge amounts of
feedstock required to achieve the regulated objectives, this
growing trend is having a significant impact on fertilizer
prices.
(iii)
Climate Change and Carbon Lifecycle Assessment
The pressure to go for “green” is pushing every fabric of
the manufacturing process to adapt to this new market
environment. Consumers today are demanding minimal carbon
footprint on every vegetative products they consume. This is
forcing plantation owners to use more and more
bio-fertilizer as part of their farm input. Bio-fertilizer
being carbon neutral has far superior carbon footprint
compare to mineral fertilizer which is a products of
petro-chemical industry.
|
Greenhouse Gas Emission Factors of Chemical
Fertilizer |
|
Product |
Composition N:P:K:S |
gCO2 – e/kg element |
gCO2 – e/kg Product |
|
Urea |
46:0:0:0 |
1,326 N |
610 |
|
Ammonia |
82:0:0:0 |
1,829N |
1,500 |
|
NPK |
21:03:10:0 |
7,973 |
16,745 |
NPK
compound fertilizer generates high volume of greenhouse
emission. For instance, the mineral nitrogen fertilizer
industry is an energy intensive industry, producing CO2 from
both process (feedstock) and fuel sources. According to the
latest IFA benchmarking exercise, the CO2 generation from
ammonia production ranges from 1.52 to 3.06 tonnes of CO2
per tonne of ammonia produced for the 66 participating
ammonia plants.* On average, one-third of CO2 emissions is
from burning fuel and two-thirds are from the use of
hydrocarbon feedstock. Natural gas is the dominant
feedstock. *Source:
(PSI, 2004)
(iv)
Technology Trend Towards ‘In-situ” Production to Achieve
Material Efficiency
The technology trend since the 90’s has been decentralized
production of resource based industry. The clear example is
small renewable power plant spreading across the land will
reduce overall delivered power cost even though bigger
(centralized) power plant has lower generation cost at
production floor.
The same goes with resource based bio-fertilizer industry.
The trend is to produce bio-fertilizer “in-situ” i.e.
production of end-product (bio-fertilizer) at the place of
feedstock and place of consumption. This technology trend
allows cost efficiency to compete with bigger multinational
producer located far away from place of feedstock and
consumption.
(v) Fast Growing Global
Market Size
Driven
by strong demand for bio-fuels crops and higher demand of
fertilizer use in the main consuming regions, global
fertilizer consumption in calendar year 2006 raised 6
million tons (Mt) nutrient over 2005, to 161.8 Mt, followed
by another projected increase of 6 Mt nutrients in 2007, to
167.6 Mt. This has set the foundation for a sustained 2.7
per cent annual growth rate between 2007 and 2011, to reach
183.4 Mt in 2011.
Fertilizer consumption has direct link with population and
income per capita growth. With Asia being the engine of
global growth, it is not surprising to see strong fertilizer
demand is anticipated to remain very strong in Asia (4.8 per
cent growth annually) as greater amounts of fertilizer are
needed to achieve food self-sufficiency policy objectives.


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