摘要
Phosphorus(P)is an essential element for plants,and all other life on Earth including humans.However,P is a nonrenewable resource with a very uneven distribution in the world.In the agri-food system,P is supplied to agricultural land as chemical P fertilizer and/or animal manure for producing food,feed and fiber,followed by their use or consumption by animals and humans.Despite some returns of P in crop production as organic manure,large amounts of P are released into the environment,severely contributing to pollution or eutrophication(mainly surface waters like rivers,lakes and oceans).Therefore,how to close the P cycle in the agri-food system has become a major challenge for ensuring food and environmental security globally.This special issue focuses on the sustainable use of P in agriculture,and comprises 12 review and research articles covering a wide range of topics on P resources,P use in crop and animal systems,P recycling and eco-environment.
作者简介
Correspondence:Dr.Hans Lambers,distinguished professor of China Agricultural University and emeritus professor of University of Western Australia.He obtained his PhD degree from the University of Groningen,the Netherlands.In the Netherlands and in Australia,he focused on plant mineral nutrition of both crop plants and Australian native species.Since Australian plants evolved in severely P-impoverished landscapes,they have unique adaptations to cope with low-P soils.Some of these are of great interest for future crop cultivars to tighten the P cycle in agroecosystems.He has published more than 450 refereed journal articles and book chapters,and is the lead author of an authoritative textbook,Plant Physiological Ecology,Springer.He has been the Editor-in-Chief of Plant and Soil since 1992.,hans.lambers@uwa.edu.au;Dr.Lixing Yuan,professor of the Department of Plant Nutrition,National Academy of Agriculture Green Development,College of Resources and Environmental Sciences,China Agricultural University.He obtained his PhD degree from the University of Hohenheim in Germany.He has been engaged in research on understanding the physiological,genetic,and molecular mechanisms of nutrient use efficiency in plants,particularly on the development of root system architecture and the processes of nutrient uptake and utilization.He has published more than 80 peer-reviewed papers in international academic journals,and also served as an associate editor for Frontiers in Plant Science(plant nutrition section);Dr.Xuejun Liu,professor of the National Academy of Agriculture Green Development,College of Resources and Environmental Sciences,China Agricultural University.He has being engaged in studies on the interactions of agriculture and environment,in particular on nitrogen source,fate and their impacts on soil acidification,eutrophication,NH3 and greenhouse gas emissions and deposition in major Chinese croplands.He has published more than 140 peerreviewed SCI papers in a number of international journals including Nature,Science and PNAS,with an H-index of 41.
