Page 40 - Biorefinery 2030 Future Prospects for the Bioeconomy (2015)
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2  History                                                       7

              than silt and, for example, during the first half of the nineteenth century, the
              wheat yield in the Aisne department was 35 % higher than in the Marne.

              These factors lead us to wonder how the Chalk Champagne region managed to
            become exceptionally fertile.



            1.5    Methods of Increasing Fertility

            Three of the different agronomic practices possible were used to increase produc-
            tivity in Champagne:

            – Working the soil, which became increasingly efficient due to developments in
              mechanisation and then motorisation, and which made it possible to plough
              more deeply and thoroughly, including land far from villages.
            – Mineral fertilisation, which is generally considered as the decisive factor in
              developing agriculture in chalk lands. Cleared land is thus able to benefit from
              potassium fertilisation, whilst most chalk land was fed by phosphates in the form
              of soluble fertilisers or other substitute elements such as magnesium.
            – The effect of a number of “improving crops” such as alfalfa, which captures
              atmospheric nitrogen. Its cultivation is recognised as being beneficial, particu-
              larly for more fragile soil; it allows the land to “rest” and to retain a good level of
              fertility, which is necessary to maintain productivity. 1

              The mass utilisation of these methods of increasing fertility by local farmers
            engendered enormous changes in Champagne in a very short time and totally
            transformed the region’s former reputation. Although this phenomenon, known as
            the “miracle of Champagne” was the result of intensifying or artificializing the
            environment, it was only made possible by the existence of chalk soil with its great
            potential, as described above.
              Know we turn to the question of what contemporary agriculture in Champagne
            owes to history.


            2      History

            Historically, as long ago as the Gallo-Roman era, the region gained a reputation as a
            “good, beautiful land;” it was known as “Champagne Propre” or “Clean Cham-
            pagne.” It was quite prosperous until the Middle Ages, particularly because of a
            number of large, internationally recognised fairs. However, neither reputation nor
            prosperity lasted later than the eighteenth century.


            1
             Alfalfa, because of its deep root system, creates tiny cracks in the chalk, enabling water to rise
            through a capillary process during periods of drought.
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