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土化肥是我国农民伟大宝贵的创造,它的特点是“就地取材,废物利用”;它在我国飞跃发展的农业生产中起了重大的作用。但不可否认在某些取材、制造和使用上也还存在着一些问题。为了更好地发挥土化肥在生产中的作用,中国科学院土壤研究所在有关机关协助下,对现有的土化肥460余件加以鉴定并编写成“土化肥的鉴定”一书,这是十分需要的。
Fertilizer is a great and valuable creation for peasants in our country. It is characterized by “local use, waste utilization”; it plays an important role in the rapid development of agricultural production in our country. However, it is undeniable that there are still some problems in some aspects of obtaining, manufacturing and using. In order to give full play to the role of soil fertilizers in production, the Institute of Soil Science, Chinese Academy of Sciences, with the assistance of relevant agencies, identified and prepared more than 460 existing soil fertilizers and formulated the book “Identification of Soil Fertilizers,” which is very needs.