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An Introduction to Agricultural Geography by David Grigg

By David Grigg

Using approximately half the world's crew, agriculture is obviously of serious financial and social value. an enormous number of tools are used globally; the Western international has the most recent clinical and commercial developments at its disposal, but within the Thrid global a dwelling is made utilizing instruments that experience rarely replaced in thousand years. An creation to Agricultural Geography offers an intensive advisor via this various and increaslingly very important geographical topic, aiming to teach wide selection of things clarify how agricultural practices vary from position to put. facing the actual surroundings, financial behaviour and calls for, institutional and social affects and the impression of farming upon the surroundings, the writer has produced a huge introductory textual content that's topical, incisive and eventually necessary to achieve an realizing of the impressive variety of the world's significant undefined.

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To the farmer these creatures are pests and diseases which must be eliminated, however natural their role. Despite advances in pesticides, pests and diseases still destroy a large proportion of the world’s standing crop each year. The spread of disease has also had an important effect on the location of some crops. The banana provides a good example of this. The banana in the Americas The banana is widely grown as a food crop throughout the tropics, but in the last century it has been grown both on plantations and smallholdings in the Americas for export to the USA and Western Europe.

42–75. Jen-hu Chang, ‘The agricultural potential of the humid tropics’, Geographical Review, 1968, vol. 58, pp. 333–61. Curry, ‘Regional variation in the seasonal programming of livestock farms in New Zealand’, Economic Geography, 1963 vol. 39, pp. 95–118. Davies, ‘Observations on land use in Iraq’, Economic Geography, 1957, vol. 33, pp. 122–34. Dennett, J. B. Speed, ‘Climate and cropping systems in West Africa’, Geoforum, 1981, vol. 12, pp. 193–202. Dudal, ‘Land resources for development’, / 11th International Congress of Soil Science, University of Alberta Plenary Session papers, 1978, vol.

In the semi-arid areas sheep and goats are more tolerant of aridity than cattle, because cattle need 50 per cent more drinking water per unit of body weight than sheep. Sheep and goats, THE BIOLOGY OF AGRICULTURE 15 then, make up the greater part of the livestock of nomadic pastoralists who have for the most part been driven into the remoter arid regions by sedentary cultivators. Some types of cattle can survive in dry regions, for they can range long distances in search of grass or bushes, but under such circumstances they put on litde weight, and have to be shipped to areas of better grass, or grain must be purchased, to fatten them for market.

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