Wheat straw (9% H2O content, grain as by-product, economic allocation)

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Wheat (15% H2O content)

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Wheat (12% H2O content, straw as by-product, economic allocation)

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Wheat (12% H2O content)

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Urea ammonium nitrate (UAN) (approximation)

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Urea (agrarian, BAT) (approximation)

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Thermal energy from natural gas (indirect)

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Thermal energy from natural gas (direct)

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Thermal energy from natural gas

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Thermal energy from lignite

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