Barbara Cade-Menun is a research scientist with Agriculture and Agri-Food Canada at the Swift Current Research and Development Centre in Saskatchewan. Her research focuses on nutrient cycling and minimizing nutrient loss from agriculture and she is a world leader in studying phosphorus cycling in water, soils, and plants. She is recognized for her pioneering work in the use of 31P nuclear magnetic resonance spectroscopy to characterize phosphorus compounds in soil and other environmental samples. She has developed and refined investigative techniques in her field that have become the preferred standard. [1] [2] [3] [4]
Cade-Menun grew up in Merrit, British Columbia. [5] She was surrounded by agriculture in her hometown, which inspired her interest from a young age. [6]
In 1986 she obtained her honors B. Sc. in Biology from Queen’s University. She then went on to obtain her M. Sc. in soil biology (studying mycorrhizae in winter wheat) in 1989 and Ph. D. in 1995 in soil chemistry (studying phosphorus cycling in temperate rainforests of BC) from the University of British Columbia. [5] [7] She completed her postdoctoral training at the University of California, Berkeley, and Stanford University. [8] [7]
Cade-Menun joined Agriculture and Agri-Food Canada as a research scientist (Swift Current Research and Development Centre) in March 2008. [5] She is an adjunct professor at the University of Saskatchewan, the University of Regina, and the University of Northern British Columbia. [8] [9] [10]
Cade-Menun is a research scientist with Agriculture and Agri-Food Canada and carries out her research at the Swift Current Research and Development Centre, Saskatchewan Structural Sciences Centre, the University of Saskatchewan, and the Canadian Light Source. [2] She is the author or co-author of more than 80 journal papers and book chapters and over 200 conference presentations. [3]
Her research helps minimize the impact of agriculture on the environment. [3] In agriculture phosphorus is supplied to the soil through fertilizer to provide nutrients for crops, but nature has trouble cycling the phosphorus, causing it to accumulate in the soil and water. [11] This can lead to negative environmental impacts such as algal blooms, which can have negative impacts on water sources. [11]
She studies how phosphorus cycles in soil and water using a variety of techniques ranging from simple extractions to advanced spectroscopic methods. She uses methods such as 31P nuclear magnetic resonance spectroscopy (P-NMR) and P k-edge X-ray absorption near-edge structure spectroscopy (P-XANES). [2] [8] These techniques can examine phosphorus forms and concentrations in soils, manure, plants, and snowmelt to help ensure crops are receiving the phosphorus they need while minimizing loss to water. [2] By studying the cycle, researchers can get a complete picture of how phosphorus moves and gain a better understanding of how to manage it more effectively. [12] The goal is to balance what the crop needs to make sure it has just enough, but not too much fertilizer. [12] Although her research has focused on wheat fields, it is being expanded to other crops at sites in Manitoba and Quebec. [13]
Cade-Menun served as an associate editor for the Journal of Environmental Quality (2011–2016) and is currently on the editorial board of Geoderma. She is a member of the Canadian Soil Science Society (CSSS), the Soil Science Society of America (SSSA), and the Association for the Sciences of Limnology and Oceanography (ASLO). [14] In 2016 and 2017 she became a fellow in the SSSA and CSSS respectively. She holds adjunct appointments at the University of Regina, the University of Saskatchewan and the University of Northern British Columbia, and has helped train over 40 high school, undergraduate students, graduate students, post-doctoral fellows, and visiting scientists. [3]
A fertilizer or fertiliser is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. For most modern agricultural practices, fertilization focuses on three main macro nutrients: nitrogen (N), phosphorus (P), and potassium (K) with occasional addition of supplements like rock flour for micronutrients. Farmers apply these fertilizers in a variety of ways: through dry or pelletized or liquid application processes, using large agricultural equipment or hand-tool methods.
Agronomy is the science and technology of producing and using plants by agriculture for food, fuel, fiber, chemicals, recreation, or land conservation. Agronomy has come to include research of plant genetics, plant physiology, meteorology, and soil science. It is the application of a combination of sciences such as biology, chemistry, economics, ecology, earth science, and genetics. Professionals of agronomy are termed agronomists.
Sustainable agriculture is farming in sustainable ways meeting society's present food and textile needs, without compromising the ability for current or future generations to meet their needs. It can be based on an understanding of ecosystem services. There are many methods to increase the sustainability of agriculture. When developing agriculture within sustainable food systems, it is important to develop flexible business process and farming practices. Agriculture has an enormous environmental footprint, playing a significant role in causing climate change, water scarcity, water pollution, land degradation, deforestation and other processes; it is simultaneously causing environmental changes and being impacted by these changes. Sustainable agriculture consists of environment friendly methods of farming that allow the production of crops or livestock without damage to human or natural systems. It involves preventing adverse effects to soil, water, biodiversity, surrounding or downstream resources—as well as to those working or living on the farm or in neighboring areas. Elements of sustainable agriculture can include permaculture, agroforestry, mixed farming, multiple cropping, and crop rotation.
Agriculture and Agri-Food Canada is the department of the Government of Canada responsible for the federal regulation of agriculture, including policies governing the production, processing, and marketing of all farm, food, and agri-based products. Agriculture in Canada is a shared jurisdiction and the department works with the provinces and territories in the development and delivery of policies and programs.
Edaphology is concerned with the influence of soils on living beings, particularly plants. It is one of two main divisions of soil science, the other being pedology. Edaphology includes the study of how soil influences humankind's use of land for plant growth as well as people's overall use of the land. General subfields within edaphology are agricultural soil science and environmental soil science.
Organic fertilizers are fertilizers that are naturally produced. Fertilizers are materials that can be added to soil or plants, in order to provide nutrients and sustain growth. Typical organic fertilizers include all animal waste including meat processing waste, manure, slurry, and guano; plus plant based fertilizers such as compost; and biosolids. Inorganic "organic fertilizers" include minerals and ash. The organic-mess refers to the Principles of Organic Agriculture, which determines whether a fertilizer can be used for commercial organic agriculture, not whether the fertilizer consists of organic compounds.
Agricultural soil science is a branch of soil science that deals with the study of edaphic conditions as they relate to the production of food and fiber. In this context, it is also a constituent of the field of agronomy and is thus also described as soil agronomy.
The phosphorus cycle is the biogeochemical cycle that describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the movement of phosphorus, because phosphorus and phosphorus-based compounds are usually solids at the typical ranges of temperature and pressure found on Earth. The production of phosphine gas occurs in only specialized, local conditions. Therefore, the phosphorus cycle should be viewed from whole Earth system and then specifically focused on the cycle in terrestrial and aquatic systems.
In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. Soil structure, crop planting, type and application rates of fertilizers, and other factors are taken into account to avoid excessive nutrient loss. Leaching may also refer to the practice of applying a small amount of excess irrigation where the water has a high salt content to avoid salts from building up in the soil. Where this is practiced, drainage must also usually be employed, to carry away the excess water.
Agricultural pollution refers to biotic and abiotic byproducts of farming practices that result in contamination or degradation of the environment and surrounding ecosystems, and/or cause injury to humans and their economic interests. The pollution may come from a variety of sources, ranging from point source water pollution to more diffuse, landscape-level causes, also known as non-point source pollution and air pollution. Once in the environment these pollutants can have both direct effects in surrounding ecosystems, i.e. killing local wildlife or contaminating drinking water, and downstream effects such as dead zones caused by agricultural runoff is concentrated in large water bodies.
The Indian Institute of Soil Science is an autonomous institute for higher learning, established under the umbrella of Indian Council of Agricultural Research (ICAR) by the Ministry of Agriculture, Government of India for advanced research in the field of soil sciences.
Reuse of human excreta is the safe, beneficial use of treated human excreta after applying suitable treatment steps and risk management approaches that are customized for the intended reuse application. Beneficial uses of the treated excreta may focus on using the plant-available nutrients that are contained in the treated excreta. They may also make use of the organic matter and energy contained in the excreta. To a lesser extent, reuse of the excreta's water content might also take place, although this is better known as water reclamation from municipal wastewater. The intended reuse applications for the nutrient content may include: soil conditioner or fertilizer in agriculture or horticultural activities. Other reuse applications, which focus more on the organic matter content of the excreta, include use as a fuel source or as an energy source in the form of biogas.
Karen Bailey is a retired research scientist who specialized in plant pathology and biopesticide development at Agriculture and Agri-Food Canada. Her research focused on developing alternatives to synthetic pesticides and improving plant health through integrated pest management strategies. She is internationally recognized for her expertise on soil-borne pathogens and biological control, and she has more than 250 publications, 23 patents, and 7 inventions disclosures in progress.
Cynthia Grant is a former Canadian federal scientist who is an expert in soil fertility and crop nutrition. She was a researcher with Agriculture and Agri-Food Canada (AAFC) (1986-2015). Her research provided the scientific foundation for the Made-in-Canada 4R nutrient stewardship framework that applies crop nutrients from the right source and at the right rate, time and place. Grant is now part of an elite group of ten women who have been inducted into the Canadian Agricultural Hall of Fame since 1960.
Alessandro Piccolo is an Italian chemist and agricultural scientist, with particular expertise in soil science. He is a professor at the University of Naples Federico II and has been honoured by the prize for chemistry in 1999 by the Humboldt Foundation. He received the Doctorate Honoris Causa by the University of Life Sciences of Prague, Czech Republic in 2009. He is chief editor of the Springer journal Chemical and Biological Technologies in Agriculture. He has been coordinator of two research EU projects and a member of numerous other EU research projects such as the project Biofector with the University of Hohenheim. He has published more than 300 peer reviewed scientific papers and he is ranked among the top Italian scientists.
Robert August Olson was an American soil scientist. He was a professor of agronomy at the University of Nebraska–Lincoln, and one of the first to prove and warn that nitrogen fertilizers could harm crops and pollute groundwater.
Guy Lafond was a research scientist for over 30 years with Agriculture and Agri-Food Canada at the Indian Head Research Farm in Saskatchewan. He was instrumental in establishing the Indian Head Agricultural Research Foundation (IHARF) in the early 1990s and had a major impact on cropping practices and soil conservation.
G. Clarke Topp is a Canadian soil physicist who spent 37 years with Agriculture and Agri-food Canada, Ottawa. His research focus was to improve field measurement methods for soil-water properties and parameters. His research introduced electromagnetic (EM) technology to soil measurement by way of Time Domain Reflectometry (TDR). Topp is recognized for outstanding technical innovation and scientific achievement.
Noura Ziadi is a Canadian research scientist with Agriculture and Agri-Food Canada (AAFC), at the Quebec Research and development centre, whose research focuses on soil fertility and plant nutrition. She has developed technologies, methods, and knowledge for better management of mineral fertilizers that increase their efficiency while reducing environmental impact. More specifically, Ziadi developed and validated models to diagnose nitrogen and phosphorus status for different crops, developed new technologies to ensure effective management of industrial wastes and biochar, and developed methods for soil analysis. Ziadi conducts her research on national and international scales in multidisciplinary teams that include government, university, and industry partners. Her research increases agricultural productivity and enhances environmental performance earning her recognition as an influential woman in agriculture.
Seaweed fertiliser is organic fertilizer made from seaweed that is used in agriculture to increase soil fertility and plant growth. The use of seaweed fertilizer dates back to antiquity and has a broad array of benefits for soils. Seaweed fertilizer can be applied in a number of different forms, including refined liquid extracts and dried, pulverized organic material. Through its composition of various bioactive molecules, seaweed functions as a strong soil conditioner, bio-remediator, and biological pest control, with each seaweed phylum offering various benefits to soil and crop health. These benefits can include increased tolerance to abiotic stressors, improved soil texture and water retention, and reduced occurrence of diseases.