substrates Archives

Evolutionary theory: Debating the origins of our DNA

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Mr Shaojie Deng proposes the stable complex evolution model, which offers an evolutionary theory for the fundamental characteristics of life.

For over a decade, Mr Shaojie Deng of Chongqing Municipal Bureau of Planning and Natural Resources, China, has been formulating and more recently presenting his new evolutionary theory to the academic world. Over time his thought processes too have evolved with his most recent manuscript centring around the stable complex model as an explanation for the evolution of enzymes and […]

Recycling de-inked paper sludge in plant growing substrates

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The recycled paper industry produces tons of waste with resulting disposal costs and environmental impacts. Francesca Bretzel from the Institute of Research on Terrestrial Ecosystems, National Research Council of Italy, and colleagues examined the suitability of de-inked paper sludge (DPS), in pellet form, as a sustainable component of growing media for plants. Their studies include its use in substrates for […]