关于目前土壤结构改良剂研究的一些动向

• 作 者: A.Wallace S.D.Nelson 李棠庆
• 出 处: 土壤学进展
• 发表日期: 1987年05期
• 关键词: 土壤结构改良剂 土壤物理性状 土壤科学 上壤 紧实度 粘质土壤 提前播种 耕作法 作物产量 参考资料

1952年,《土壤科学》发表了一系列文章,向科技界介绍了土壤结构改良剂。50年代初,由于改良土壤物理性状的急切需求,而对改良剂产生了很高的热情。但几年以后发现,将这种方法应用于农田是代价高昂的,应用与某些特殊的用途中也嫌太贵,加上其他种种原因,导致了60年代它从市场上

In 1952, Soil Science published a series of articles introducing the soil structure improvers to the scientific community. In the early 1950s, there was a great deal of enthusiasm for improvers due to the urgent need to improve soil physical properties. But a few years later it was found that applying this method to farmland was costly and too expensive for some special uses and for a number of other reasons that led to its emergence from the market in the 1960s