The effort to avoid using fresh water and land that's used for food "should be applauded," says Mark Schrock, a professor of biological and agricultural engineering at Kansas State University.

堪萨斯州立大学生物和农业工程教授马克施洛克说，不耗费淡水，不占用种植粮食的土地来生产生物燃料的举措应该得到赞扬。

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Biological assets are one of the main factors of production that people are engaged in the agricultural activity, biological assets are important components of agribusiness 'assets.

生物资产是人们从事农业活动的主要生产要素之一，生物资产是农业企业资产的重要组成部分。

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The technique system of integration dodder management on alfalfa including plant quarantine agricultural and biological prevention and chemical and biological control are put forward.

并系统的提出了植物检疫、农业防治、物理防治、化学防治和生物防治等较为有效的菟丝子综合治理技术体系。

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The likely impact includes forest conversion to agricultural land, a drop in biological diversity as a result of monocropping and the massive use of chemical fertilizers, pesticides and herbicides, unsustainable levels of water abstraction and a greater risk of water-related conflicts with local communities and neighbouring States sharing the same transboundary river systems.

UNESCO: Madiodio Niasse on the risks associated with large-scale foreign land aquisitions | United Nations Educational, Scientific and Cultural Organization

Add to this an inevitable end to stretching productivity per acre with further technical advances as we reach some ultimate biological limit, and we would be irresponsible to assume that agricultural science will solve all future problems of food supply.

ECONOMIST: Letters