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Comparing the yields of organic and conventional agriculture

Seufert, Verena; Ramankutty, Navin; Foley, Jonathan A.

Abstract (englisch):

Numerous reports have emphasized the need for major changes in the global food system: agriculture must meet the twin challenge of feeding a growing population, with rising demand for meat and high-calorie diets, while simultaneously minimizing its global environmental impacts. Organic farming—a system aimed at producing food with minimal harm to ecosystems, animals or humans—is often proposed as a solution. However, critics argue that organic agriculture may have lower yields and would therefore need more land to produce the same amount of food as conventional farms, resulting in more widespread deforestation and biodiversity loss, and thus undermining the environmental benefits of organic practices. Here we use a comprehensive meta-analysis to examine the relative yield performance of organic and conventional farming systems globally. Our analysis of available data shows that, overall, organic yields are typically lower than conventional yields. But these yield differences are highly contextual, depending on system and site characteristics, and range from 5% lower organic yields (rain-fed legumes and perennials on weak acidic to weak-alkaline soils), 13% lower yields (when best organic practices are used), to 34% lower yields (when the conventional and organic systems are most comparable). ... mehr


Originalveröffentlichung
DOI: 10.1038/nature11069
Scopus
Zitationen: 1134
Web of Science
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Zitationen: 1144
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Umweltforschung (IMK-IFU)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 25.04.2012
Sprache Englisch
Identifikator ISSN: 0004-9840, 1324-2598
KITopen-ID: 1000080708
Erschienen in Nature
Band 485
Heft 7397
Seiten 229-232
Schlagwörter organic agriculture
Nachgewiesen in Web of Science
Dimensions
Scopus
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