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di qiu shang ke shi zi yuan zhi duo shao
Author(s): 
Pages: 54
Year: Issue:  4
Journal: Resources Economization and Comprehensive Utilization

Abstract: 地球上可食资源知多少据生物学家估计,现在地球上约有8万种植物可以供人类食用,而目前仅利用了3000多种。人类所需植物蛋白的95q0来自其中的30种,一半以上仅来自3种小麦、水稻、玉米。豆科植物约有1万种,我们利用的仅仅是大豆、花生等少数几种。水中生长...
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