Other recent changes in agriculture include hydroponics, plant breeding, hybridization, gene manipulation, better management of soil nutrients, and improved weed control.
Genetic engineering has yielded crops which have capabilities beyond those of naturally occuring plants, such as higher yields and disease resistance. Genetic engineering of plants has proven controversial, particularly in the case of herbicide-resistant plants. However, the relative significance of farming has dropped steadily since the beginning of industrialization, and in — for the first time in history — the services sector overtook agriculture as the economic sector employing the most people worldwide.
Also, agricultural production accounts for less than five percent of the gross world product an aggregate of all gross domestic products. Reference Terms. At the other end is commercial intensive agriculture, including industrial agriculture. Modified seeds germinate faster, and thus can be grown in an extended growing area. Related Stories. An international research team questions this. According to the authors, a Nodulation occurs when nodules, which form on the roots of plants primarily legumes , form a symbiotic relationship with This means more feed is needed for animals.
Authors Authors and affiliations David R. Harris Dorian Q. How to cite. State of Knowledge and Current Debates Introduction Agriculture is the most comprehensive word used to denote the many ways in which crop plants and domestic animals sustain the global human population by providing food and other products.
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Proceedings of the American Philosophical Society 3 : — Fullager, R. Field, T. Early and mid-Holocene tool-use and processing of taro Colocasia esculenta , yam Dioscorea sp. Journal of Archaeological Science Fuller, D. Contrasting patterns in crop domestication and domestication rates: recent archaeobotanical insights from the Old World. Here we present data for a broader set of developing countries. All tables are also available online for download. Smith John McArthur.
Related Books. More on Global Development. Report The potential of industries without smokestacks to address unemployment: An Ethiopia case study Tsegay Gebrekidan Tekleselassie. Planet Policy Infrastructure in the developing world is a planetary furnace. Jeffrey Ball. Get global development updates from Brookings.
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