Bushcraft PT

Fórum de Bushcraft e Técnicas de Sobrevivência
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MensagemEnviado: segunda mar 11, 2013 10:08 am 
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Registado: terça ago 11, 2009 6:18 pm
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Localização: Lisboa/Portugal/Planeta Terra :)
Faca do fórum Nr: 25
Faca preferida:: Mora; FF25; CS RS
Activist Post: Study: Biodiversity from Polyculture Outperforms Industrial Farming Chemicals http://goo.gl/lnEna

"A study by the University of California, Berkeley, presented exhaustive alternatives to current practices. One section of the paper cited research pointing to the positive effects of biodiversity on the numbers of herbivore pests, finding that polycultural planting led to reduction of pest populations by up to 64%. Later, combined results of hundreds of comparisons also favored biologically diverse farms with a 54% increase in pest mortality and damage to crops dropping by almost 25%. The introduction of more diverse insects also promoted increased pollination and healthier crops.(source ecology and society)"

"A 9-year study conducted by researchers from the USDA, University of Minnesota and Iowa State University proved that in more complex systems, yield AND profits were both enhanced. When paired against the conventional corn/soy rotation, less fertilizer was used. This difference actually increased over the course of the study, indicating the quality of the soil was improving over time, instead of experiencing the depletion of common practices. (source Union of Concerned Scientists)"

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