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中国地方猪种的价值与应用潜力 PowerPoint PPT Presentation


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中国地方猪种的价值与应用潜力. 王希彪 东北农业大学. 如果蜜蜂消失了,那么人类只能生存四年 (爱因斯坦) 。. 一个例子. 智利是南美洲的一个国家,经济滞后,连粮食也要以来进口供应。美国派农业考察团前往,以提供技术指导,提高声农业生产水平。 安第斯山脉生产马铃薯,几千年来是智利人的主要食品,但考察后发现,尽管种植历史悠久,当地的农民好象还没有发展出现代化的量产技术。例如,产地位处贫瘠的高地,每块田地的形状很不规则,且布满石头,种植的品种多达十余种,各品种的产量差别很大。收获时,长在偏僻、崎岖处的马铃薯也不收获,任其生长。.

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中国地方猪种的价值与应用潜力

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