By World Energy Council
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Extra info for Biofuels: Policies, Standards and Technologies
Newer processing plants burn residues not used for bioethanol to generate electricity. Only grows in tropical and subtropical climates. Low input annual grass. Grows in tropical and temperate climates, but highest bioethanol yield estimates assume multiple crops per year. Does not store well. High input annual grass. Only kernels can be processed using available technology. Development of commercial cellulosic technology would allow stover to be used and increase bioethanol yield by 1,100 - 2,000 l/ha Table 4: Selected Bioethanol Feedstocks and Their Annual Yields Compared with conventional feedstocks, production of bioethanol from new feedstocks requires different technological (pre) treatment: Bringing down the learning curves and decreasing production costs is a common goal for the research in new technologies in both biodiesel and bioethanol industries.
Other key areas to look at include: In contrast, organic agriculture sets out to enhance biodiversity and restore the natural ecological balance. It encourages both spatial and temporal biodiversity through inter-cropping Improved marketing strategies. Improved agro-forestry systems. Biofuels: Policies, Standards and Technologies World Energy Council 2010 53 Improving irrigation and water harvesting systems enables farmers to produce more crops per drop, and multiply their incomes through high-value products.
An INMS system also looks at utilising waste as an extra plant nutrient source. Although this is a relatively poor substitute for commercial fertilisers, wastes, in the form of urban sludge, improve soil structure and both contain secondary and micronutrients as well as NPK. In addition to the above, the use of waste (especially treated waste) as a supplement to fertilisers is economically viable as it reduces the cost of disposal and health risks associated with landfill disposal. This is extremely beneficial to farmers who cannot afford inorganic fertilisers.
Biofuels: Policies, Standards and Technologies by World Energy Council