23 results for year: 2022


Book Review: A World Without Soil

A review of: A World Without Soil: The past, present, and precarious future of the earth beneath our feet by Jo Handelsman, 2021, Yale University Press   This book is a good, clearly written, popular introduction to how quickly we are losing the topsoil that feeds us, and how politicians treat soil like dirt. The author, a plant pathologist, is Director of the Wisconsin Institute for Discovery at University of Wisconsin–Madison, and was Associate Director for Science at the White House Office of Science and Technology Policy (OSTP) to President Obama.  She focuses on contemporary soil issues, primarily reducing erosion and the need to increase ...

IV Congresso Brasileiro de Rochagem: Highlights from the Presentations in Portuguese

(Clockwise from top right) Dr. Magda Bergmann, Prof. Suzi Huff Theodoro, and Dr. Antonio N. Zamunér Filho. “I was converted,” confessed agronomist Antônio Bizão. Listening to Bizão’s skepticism of stonemeal was the highlight of the IV Congresso Brasileiro de Rochagem (which translates to “IV Brazilian Congress of Stonemeal”). Bizão talked of his intention, years ago, to denounce professionals who defended the use of silicate rocks for agriculture, before conducting experiments himself and obtaining replicable positive results. We were listening to a stonemeal Saul of Tarsus and the moment allowed me a glimpse of a community of farmers ...

IV Congresso Brasileiro de Rochagem: Highlights from the Presentations in English

Since September 2009 Brazil has held a conference on rochagem (rock dust) every 3 years. The Brazilian Conference on Rochagem highlights Brazil’s role as a leader in scientific research and policy creation around the use of rock dust as a sustainable fertilizer. The Congress creates a forum for researchers, the general public and private interests to discuss the scientific advances, effective policies and future rock dust potential. Past conferences have steadily advanced the importance of rock dust as a fertilizer to enhance food security and promote environmental health in Brazil. Despite pandemic difficulties, the IV Congresso Brasileiro de ...