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    Biotech crops bring higher yields with solid environmental benefits: less use of energy, better soil conservation, less fertilizer employed and therefore less polluting runoff into groundwater. But the voices opposed are also loud. Prof. Bruce Chassy, an American expert in the field, was recently in Beijing for an international conference; our journalist took the opportunity to interview him on the subject.
    Q: The people who denounce biotechnological crops say they are worried about the possibility of the alien genes in genetically modified crops spreading to other species.  For example, suppose herbicide-tolerant cotton transmits its genes to weeds—then the weeds could become "superweeds". Do you think this concern is justified?
    A: Before a new biotech crop can be grown in the USA, it must be approved by the US Department of Agriculture and the Environmental Protection Agency. They require developers to provide evidence that there will be no unexpected or damaging environmental consequences if the crop is planted. The questions require an examination of the potential for gene flow and any consequences that would ensue, including issues such as superweeds and the impact on a variety of non-target species such as birds, butterflies, earthworms and frogs. Resistance to the herbicides used in conventional agriculture does occur from time to time, and there is no reason to believe that biotech crops will produce any different kind of herbicide-resistant weeds than we already see in agriculture. In fact, after six years of planting herbicide-resistant crops in the US, we have not seen the emergence of herbicide-resistant weeds.
    Q: In the US what percentage of people support biotech crops? And do those who support biotech crops also eat biotech crops? What percentage of food on the market has genetically modified ingredients?
    A: US consumers have been subjected to a very effective anti-biotechnology propaganda campaign for the last few years, but according to polls over 70% support biotechnology. For example, in a recent referendum in Oregon, voters rejected a proposal to require special labels on all products containing biotech ingredients by an overwhelming 73% to 27%. That's probably because consumers know that we have an effective regulatory system. Many may also know that 70% -80% of the processed food products on supermarket shelves contain one or more ingredients derived from biotech crops. All Americans eat biotech crops unless they deliberately seek out products that are labeled otherwise. Evidence suggests that this is less than 5% of consumers.

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    我们的任务是：全面繁荣农村经济，加快城镇化进程。统筹城乡经济社会发展，建设现代农业，发展农村经济，增加农民收入，是全面建设小康社会的重大任务。加强农业基础地位，推进农业和农村经济结构调整，保护和提高粮食综合生产能力，健全农产品质量安全体系，增强农业的市场竞争力。积极推进农业产业化经营，提高农民进入市场的组织化程度和农业综合效益。发展农产品加工业，壮大县域经济。开拓农村市场，搞活农产品流通，健全农产品市场体系。
    农村富余劳动力向非农产业和城镇转移，是工业化和现代化的必然趋势。要逐步提高城镇化水平，坚持大中小城市和小城镇协调发展，走中国特色的城镇化道路。发展小城镇要以现有的县城为基础，科学规划，合理布局，同发展乡镇企业和农村服务业结合起来。消除不利于城镇化发展的体制和政策障碍，引导农村劳动力合理有序流动。