[Article] The conservation of the fertility of soil Adjust Share By A.D. Hall, This article is only available as a PDF to subscribers. Download PDF Tags 19th century 20th century Agriculture England Experimentation Harpenden History Nitrogen in agriculture Plants, Effect of nitrogen on Rothamsted Experimental Station (Harpenden, England) Soil conservation United States More from A.D. Hall Some aspects of vegetarianism The soil as a battle-ground Adjust Share Close < Previous Issue | View All Issues | Next Issue > March 1913 < Previous Issue | View All Issues | Next Issue > Table of Contents Close