I am reviewing the evidence base for organic vs non organic farming systems and would value any recent papers and review articles.
All natural products vary in their composition of nutrients and other nutritionally relevant substances. Different cultivars of the same crop may differ in nutrient composition, which can also vary depending on fertilizer and pesticide regimen, growing conditions, season, and other factors. The nutrient composition of livestock products can similarly be affected by factors such as the age and breed of the animal, feeding regimen, and season. It has been well accepted that the nutrient content of organically produced and conventionally produced foodstuffs vary.
Please see following review:
http://ajcn.nutrition.org/content/90/3/680.full
All natural products vary in their composition of nutrients and other nutritionally relevant substances. Different cultivars of the same crop may differ in nutrient composition, which can also vary depending on fertilizer and pesticide regimen, growing conditions, season, and other factors. The nutrient composition of livestock products can similarly be affected by factors such as the age and breed of the animal, feeding regimen, and season. It has been well accepted that the nutrient content of organically produced and conventionally produced foodstuffs vary.
Please see following review:
http://ajcn.nutrition.org/content/90/3/680.full
Many shades of gray—The context-dependent performance of organic agriculture. Verena Seufert and Navin Ramankutty, Science Advances 10 Mar 2017: Vol. 3, no. 3, e1602638 DOI: 10.1126/sciadv.1602638
Article Many shades of gray—The context-dependent performance of org...
Dear Gerald,
Please find below few references that could be helpful.
- Seufert and Ramankutty 2017 Many shades of gray—The context-dependent performance of organic agriculture. Science Advances 3 (3)
- Kravchenko et al 2017 Field-scale experiments reveal persistent yield gaps in low-input and organic cropping systems. Proceedings of the National Academy of Sciences 114 (5):926-931
- Reganold and Wachter 2016 Organic agriculture in the twenty-first century. Nature Plants 2:15221
- Ponisio et al 2015 Diversification practices reduce organic to conventional yield gap. Proceedings of the Royal Society of London B: Biological Sciences 282 (1799):20141396
- Crowder and Reganold 2015 Financial competitiveness of organic agriculture on a global scale. Proceedings of the National Academy of Sciences 112 (24):7611-7616
The last two papers are less recent, but worth reading
- Seufert et al 2012 Comparing the yields of organic and conventional agriculture. Nature 485 (7397):229-232.
- de Ponti et al 2012 The crop yield gap between organic and conventional agriculture. Agricultural Systems 108 (0):1-9.
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