The 9 Billion-people Question  

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[s.n]

Jenis: Article from Bulletin/Magazine
Dalam koleksi: The Economist (http://search.proquest.com/) vol. 398 no. 8722 (Feb. 2011), page 3-5.
Topik: World Population; Population; Food Industry Index; Crisis
Fulltext: The 9 billion-people question(Ros).pdf (23.28KB)

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The 1.6-hectare (4-acre) Broadbalk field lies in the centre of Rothamsted farm, about 40km (25 miles) north of London. Broadbalk is no ordinary field. The first experimental crop of winter wheat was sown there in the autumn of 1843, and for the past 166 years the field, part of the Rothamsted Research station, has been the site of the longest-running continuous agricultural experiment in the world. Now different parts of the field are sown using different practices, making Broadbalk a microcosm of the state of world farming. The wheat yielding a tonne a hectare is like an African field, and for the same reason: this crop has had no fertiliser, pesticide or anything else applied to it. African farmers are sometimes thought to be somehow responsible for their low yields, but the blame lies with the technology at their disposal. Given the same technology, European and American farmers get the same results. But the Broadbalk field shows something else. Chart 1 on the next page tracks its yields from the start, showing how the three different kinds of wheat farming--African, Green Revolution and modern--have diverged, sometimes quite suddenly.

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