Produtores americanos consideram retornar ao uso de sementes convencionais dado que o aumento de pragas resistentes e a perda de lavouras t\u00eam levado a menores colheitas dos cultivos transg\u00eanicos em rela\u00e7\u00e3o a suas contrapartes convencionais.<\/p>\n
No pa\u00eds, um produtor paga cerca de 100 d\u00f3lares a mais por acre pelas sementes transg\u00eanicas e muitos se perguntam se haver\u00e1 benef\u00edcios em continuar usando essas sementes.<\/p>\n
\u201cTrata-se de uma an\u00e1lise de custo e benef\u00edcio\u201d, disse o economista Dan Basse, presidente da AgResource, empresa de pesquisa agr\u00edcola.<\/p>\n
\u201cOs produtores est\u00e3o pagando a mais pela tecnologia mas as colheitas n\u00e3o melhores do que as de 10 anos atr\u00e1s\u201d.<\/p>\n
\u201cVoltei a aplicar inseticidas\u201d, disse Dan Basse, referindo-se aos insetos que n\u00e3o s\u00e3o controlados pelas plantas transg\u00eanicas como deveriam.<\/p>\n
Caso os produtores decidam voltar atr\u00e1s esses produtores enfrentar\u00e3o a quest\u00e3o da oferta de sementes convencionais, dado que cerca de 87% do cultivo no pa\u00eds \u00e9 feito com sementes modificadas.<\/p>\n
Entre os pa\u00edses com maiores produtividades em 2012 est\u00e3o asi\u00e1ticos como a China, que n\u00e3o usam sementes transg\u00eanicas.<\/p>\n
***<\/p>\n
US farmers may stop planting GMs after poor global yields<\/strong><\/p>\n Some US farmers are considering returning to conventional seed after increased pest resistance and crop failures meant GM crops saw smaller yields globally than their non-GM counterparts.<\/p>\n Farmers in the USA pay about an extra $100 per acre for GM seed, and many are questioning whether they will continue to see benefits from using GMs.<\/p>\n “It’s all about cost benefit analysis,” said economist Dan Basse, president of American agricultural research company AgResource.<\/p>\n “Farmers are paying extra for the technology but have seen yields which are no better than 10 years ago. They’re starting to wonder why they’re spending extra money on the technology.”<\/p>\n One of the biggest problems the USA has seen with GM seed is resistance. While it was expected to be 40 years before resistance began to develop pests such as corn rootworm have formed a resistance to GM crops in as few as 14 years.<\/p>\n “Farmers are paying extra for the technology but have seen yields which are no better than 10 years ago.” Dan Basse<\/p>\n “Some of these bugs will eat the plant and it will make them sick, but not kill them. It starts off in pockets of the country but then becomes more widespread.<\/p>\n “We’re looking at going back to cultivation to control it,” said Mr Basse. “I now use insecticides again.”<\/p>\n One of the issues if farmers do move back towards non-GMs will be the availability of seed, he said, as around 87% of US farmers plant genetically modified seed.<\/p>\n The top performing countries by crop yield last year were in Asia, in particular China, where farmers do not use GM seed.<\/p>\n Fonte – Robyn Vinter, Farmers Weekly \/ Blog Em Pratos Limpos de 06 e 07 de fevereiro de 2013<\/p>\n","protected":false},"excerpt":{"rendered":" Produtores americanos consideram retornar ao uso de sementes convencionais dado que o aumento de pragas resistentes e a perda de lavouras t\u00eam levado a menores colheitas dos cultivos transg\u00eanicos em rela\u00e7\u00e3o a suas contrapartes convencionais. No pa\u00eds, um produtor paga cerca de 100 d\u00f3lares a mais por acre pelas sementes transg\u00eanicas e muitos se perguntam…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[5,90,72],"post_series":[],"class_list":["post-11779","post","type-post","status-publish","format-standard","hentry","category-ambiente-ambiental-environment-environmental-meio-ambiente","tag-agricultura","tag-ambiente-ambiental-environment-environmental-meio-ambiente","tag-transgenico-ogmgmo","entry","no-media"],"yoast_head":"\n