论文部分内容阅读
雷通明教授系美国国家水质量研究室水沉积物及土壤部门负责人。1980年9月4日,他在南京应江苏省土壤学会之请作了关于美国现代化农业中的土壤肥料问题的学术报告。现将报告整理成文(未经本人审阅),供读者参考。 美国农业非常发达。主要特点是现代化程度高,已走向工厂式生产,并逐步用电子计算机控制。目前全国只有5％的人口从事农业,而生产的粮食不仅满足本国的需要,还是主要的粮食出口国。 美国农业现代化的历史不算长,但已暴露和潜在的问题不少。问题的核心是土壤。众所周知,植物生产和动物生产是个生物学过程。生物从生→发育→生殖→死→腐烂、分解→生,循环不止。这个循环是以土壤为基础的。然而,美国的农业自走向工厂式生产以后,就忽视了土壤这个基础,破坏了循环。从经济
Professor Lei Tongming is the head of the Department of Water Sediment and Soil in the National Water Quality Research Laboratory of the United States. On September 4, 1980, he made an academic report on the issue of soil fertility in modern agriculture in the United States at the request of Jiangsu Soil Association. The report is now collated (without my own review), for readers reference. American agriculture is very developed. The main feature is the high degree of modernization has been to factory-type production, and gradually using computer control. Currently, only 5% of the country’s population is engaged in agriculture, and the produced food not only meets the needs of its own country, but also is a major food exporter. The history of U.S. agricultural modernization is not long, but many problems have been exposed and potential. The heart of the problem is soil. It is well known that plant production and animal production are biological processes. Biology from the development → → reproductive → dead → decay, decomposition → Health, the cycle is more than. This cycle is based on the soil. However, once agriculture in the United States has gone from factory to factory, it neglects the foundation of soil and undermines the cycle. From the economy