Agricultural science is a broad multidisciplinary field of biology that encompasses the parts of exact, natural, economic and social sciences that are used in the practice and understanding of agriculture. Professionals of the agricultural science are called agricultural scientists or agriculturists.
Agroecology is an academic discipline that studies ecological processes applied to agricultural production systems. Bringing ecological principles to bear can suggest new management approaches in agroecosystems. The term can refer to a science, a movement, or an agricultural practice. Agroecologists study a variety of agroecosystems. The field of agroecology is not associated with any one particular method of farming, whether it be organic, regenerative, integrated, or industrial, intensive or extensive, although some use the name specifically for alternative agriculture.
In agriculture, cover crops are plants that are planted to cover the soil rather than for the purpose of being harvested. Cover crops manage soil erosion, soil fertility, soil quality, water, weeds, pests, diseases, biodiversity and wildlife in an agroecosystem—an ecological system managed and shaped by humans. Cover crops can increase microbial activity in the soil, which has a positive effect on nitrogen availability, nitrogen uptake in target crops, and crop yields. Cover crops may be an off-season crop planted after harvesting the cash crop. Cover crops are nurse crops in that they increase the survival of the main crop being harvested, and are often grown over the winter. In the United States, cover cropping may cost as much as $35 per acre.
Charles Sturt University is an Australian multi-campus public university located in New South Wales, Australian Capital Territory and Victoria. Established in 1989, it was named in honour of Captain Charles Napier Sturt, a British explorer who made expeditions into regional New South Wales and South Australia.
Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the germination, growth, survival, and reproduction of other organisms. These biochemicals are known as allelochemicals and can have beneficial or detrimental effects on the target organisms and the community. Allelopathy is often used narrowly to describe chemically-mediated competition between plants; however, it is sometimes defined more broadly as chemically-mediated competition between any type of organisms. Allelochemicals are a subset of secondary metabolites, which are not directly required for metabolism of the allelopathic organism.
Autotoxicity, meaning self-toxicity, is a biological phenomenon whereby a species inhibits growth or reproduction of other members of its species through the production of chemicals released into the environment. Like allelopathy, it is a type of interference competition but it is technically different: autotoxicity contributes to intraspecific competition, whereas allelopathic effects refer to interspecific competition. Furthermore, autotoxic effects are always inhibitory, whereas allelopathic effects are not necessarily inhibitory–they may stimulate other organisms.
The rhizosphere is the narrow region of soil or substrate that is directly influenced by root secretions and associated soil microorganisms known as the root microbiome. Soil pores in the rhizosphere can contain many bacteria and other microorganisms that feed on sloughed-off plant cells, termed rhizodeposition, and the proteins and sugars released by roots, termed root exudates. This symbiosis leads to more complex interactions, influencing plant growth and competition for resources. Much of the nutrient cycling and disease suppression by antibiotics required by plants, occurs immediately adjacent to roots due to root exudates and metabolic products of symbiotic and pathogenic communities of microorganisms. The rhizosphere also provides space to produce allelochemicals to control neighbours and relatives.
The University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca (USAMVCN) is a university in Cluj-Napoca, Romania. With around 6,000 students, the university offers 21 undergraduate programs; all are available in Romanian, 2 in French and 1 in English. Additionally, the university offers 23 Master programs.
A weed is a plant considered undesirable in a particular situation, growing where it conflicts with human preferences, needs, or goals. Plants with characteristics that make them hazardous, aesthetically unappealing, difficult to control in managed environments, or otherwise unwanted in farm land, orchards, gardens, lawns, parks, recreational spaces, residential and industrial areas, may all be considered weeds. The concept of weeds is particularly significant in agriculture, where the presence of weeds in fields used to grow crops may cause major losses in yields. Invasive species, plants introduced to an environment where their presence negatively impacts the overall functioning and biodiversity of the ecosystem, may also sometimes be considered weeds.
Rajeev Kumar Varshney is an Indian agricultural scientist, specializing in genomics, genetics, molecular breeding and capacity building in developing countries. Varshney is currently serving as Director, Western Australian State Agricultural Biotechnology Center; Director, Centre for Crop & Food Innovation; and International Chair in Agriculture & Food Security with the Food Futures Institute at Murdoch University, Australia since Feb 2022. Before joining Murdoch University, Australia he served International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), a global agriculture R&D institute, for more than 16 years in different scientific and research leadership roles including Research Program Director for three global research programs– Grain Legumes, Genetic Gains and Accelerated Crop Improvement Program. He has the onus of establishing and nurturing the Center of Excellence in Genomics & Systems Biology (CEGSB), a globally recognized center for genomics research at ICRISAT that made impacts on improving agriculture and development of human resources in several countries including India, China, Kenya, Ethiopia, Tanzania, Nigeria, Ghana, Mali, Senegal, Burkina Faso, etc. Varshney holds Adjunct/Honorary/Visiting Professor positions at 10 academic institutions in Australia, China, Ghana, Hong Kong and India, including The University of Western Australia, University of Queensland, West Africa Centre for Crop Improvement, University of Hyderabad, Chaudhary Charan Singh University and Professor Jayashankar Telangana State Agricultural University.
Ulrike Mathesius is a German–Australian plant microbiologist in the Division of Plant Sciences at Australian National University (ANU). She is an Australian Research Council (ARC) Future Fellow at the ANU, National Tertiary Education Union (NTEU) member and Professor at the ANU in plant science, biotechnology and plant-microbe interactions. Her research focuses on root microbe interactions and symbionts to parasites. Mathesius won the 2013 Fenner Medal awarded by the ARC for research in biology for outstanding early-career researchers under the age of 40.
Leslie Denis Swindale was a New Zealand-born soil scientist, agriculturist, writer and a former chairman of the Department Agronomy and Soil Science of the University of Hawaii. He was the author of several books on soil and agricultural sciences and was a part of the Freedom from Hunger Campaign of the Food and Agriculture Organization. He was a Fellow of New Zealand Institute of Chemistry, American Society of Agronomy and a foreign fellow of the National Academy of Agricultural Sciences. The Government of India awarded him the third highest civilian honour of the Padma Bhushan, in 1991, for his contributions to science, making him one of the few non-Indians to receive the award.
Jane Wright is an entomologist who discovered the dung beetle Neochara wrightee while working for the Entomology division of Commonwealth Scientific and Industrial Research Organization (CSIRO) researching predatory dung beetles in Africa.
Plant root exudates are fluids emitted through the roots of plants. These secretions influence the rhizosphere around the roots to inhibit harmful microbes and promote the growth of self and kin plants.
Marie Ann-Charlotte Dacke is a professor in the Lund Vision Group at Lund University in Sweden. She received an Ig Nobel Prize in 2013 for her work on the navigation system of dung beetles. She is also a panel member on the Swedish TV show Studio Natur, and was named best science communicator in Sweden during the 2012 Forskar Grand Prix.
Christine Beveridge is an Australian scientist and plant physiologist whose research focuses on the shoot architecture of plants, shrubs and trees. She is an Australian Research Council Laureate Fellow in the School of Biological Sciences at the University of Queensland, Director of the Australian Research Council Centre of Excellence for Plant Success in Nature and Agriculture, and affiliated professor at the Centre for Crop Science at the Queensland Alliance for Agriculture and Food Innovation.
Yakov Kuzyakov is a soil scientist and ecologist, professor and one of the most frequently cited soil scientists worldwide.
Prof. R. K. Kohli is an Indian educational administrator. He is Vice-Chancellor of Amity University Punjab, Mohali since August 22, 2020. Prior to joining Amity University, Mohali. He worked as the 2nd Vice-chancellor of Central University Punjab (2014–20). He has also worked as the founder Vice Chancellor of DAV University, Jalandhar (2013–14). He has 47 years of experience in teaching and research since July 1975. He is an elected Fellow of the Indian National Science Academy, New Delhi (2011), The Indian Academy of Sciences, Bengaluru (2010), the National Academy of Sciences (India), Allahabad (2004), National Academy of Agricultural Sciences, New Delhi, (2005), National Environmental Science Academy, New Delhi (2003). Certified Senior Ecologist by Board of Professional Certification, ESA, USA, since 2005. Member Executive Council, International Union of Biological Sciences, France.
Stacy Philpott is an American ecologist who is a professor at the University of California, Santa Cruz. Her research considers agroecology and the conservation of biodiversity. She was elected a Fellow of the Ecological Society of America in 2021.
Paramu Mafongoya is a Zimbabwean professor at the University of KwaZulu-Natal (UKZN) in South Africa, where he specialises in agriculture, earth and environmental sciences. He serves as the South African Research Chair (SARChI) in Agronomy and Rural Development at UKZN. He is affiliated with the African Academy of Sciences (AAS) and the Zimbabwe Academy of Sciences (ZAS). His work in agricultural research, development, education, and integrated natural resources management extends over three decades. He has authored more than 290 publications, including 190 articles in peer-reviewed journals, 49 chapters in peer-reviewed books, and 2 books. His research areas include agronomy, climate science, soil science, and agroforestry.
