About the Author
Professor Michael Goss has worked on soil management, soil plant relations and agriculture's footprint on the environment for over 40 years. His focus has been on soil physical properties and their impacts on root growth, with work on tillage and land drainage. This work stimulated an interest in the transport of materials, such as plant nutrients, pathogenic microbes, antibiotics and biologically active compounds through soil and their contamination of water resources. A parallel interest in the interactions between soil microbes and root systems also resulted from his initial studies. All these aspects are critical for the development of sustainable agricultural systems, particularly in a world experiencing global climate change and a rapidly increasing population. Professor Mario Carvalho's research interests are related to different aspects of low input cropping systems; tillage systems, crop rotation, integrated weed control and nutrient management. In addition he has developed a very close contact with producers over the past 30 years, establishing a solid scientific and practical knowledge of cropping system management under conservation agriculture. More recently his focus has been on the use of symbioses, specifically arbuscular micorrhiza and rhizobia, in bio-protection of cultivated plants within the cropping systems. Dr. Isabel Brito's research field is the management of native arbuscular mycorrhizas in low input cropping systems, particularly in Mediterranean regions. Key areas of study are the effects of common agronomic practices (weed control, tillage system and crop rotation) on AMF diversity and AM colonization of small grain crops. More recently she has focused on developing strategies to manage indigenous AMF within cropping systems for the bio-protection of cultivated plants.