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Book (stand-alone)Soil and plant testing and analysis as a basis of fertilizer recommendations
FAO Soils Bulletin 38/2
1980Also available in:
No results found.General principles of plant nutrition don't furnish the concrete information, necessary for practical treatments in a given situation. Thus, the questions arise which parameters must be considered an how can they be determined. This leads to consider the concepts of nutrients diagnosis, as well as the methodology and the corresponding equipment and instrumentation, for putting it into practice. The question may arise whether plant or soil analysis should be used for diagnosis crop nutrient requ irements and making fertilizer recommendations.Both methods may be complementary, not competitive and the laboratories should be in the possibility to carry out both types analysis. It is recommendable to start soil analysis prior to plant testing.There are many possibilities and methods for testing soil chemical and nutrient properties. It is indeed highly recommended to agree on a minimum of uniformity of methodology. -
Book (stand-alone)The international Code of Conduct for the sustainable use and management of fertilizers
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2019The International Code of Conduct for the Sustainable Use and Management of Fertilizers or Fertilizer Code was developed to increase food safety and the safe use of fertilizers. The Fertilizer Code aims to address issues of global importance, thereby contributing to the implementation of some of the Sustainable Development Goals (SGDs). It essentially provides a locally adaptable framework and a voluntary set of practices to serve the different stakeholders directly or indirectly involved with fertilizers. It is expected that these stakeholders will contribute to sustainable agriculture and food security from a nutrient management perspective, by adhering and help implementing the voluntary guidelines and recommendations provided. The Fertilizer Code is the result of a broad and intensive consultation process initiated in December 2017, unfolded until February 2019, as recommended by the Committee on Agriculture and finally endorsed by the 41st FAO Conference in June 2019. -
Book (stand-alone)Case studies on policies and strategies for sustainable soil fertility and fertilizer management in South Asia 2011
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No results found.According to FAO's latest estimates, global food production needs to increase by 70 percent by 2050 to feed an additional 2.3 billion people. Projections indicate that about 80 percent of the gains in production will need to come from increased yield growth and cropping intensity on existing farmlands. Nutrient depletion of soils is a key constraint to boosting the productivity of small and marginal farmers in Asia and the Pacific, who are among the most food-insecure. Efficient fertilizer use i s vital to reversing this trend. Most soil fertility depletion is caused when disposable household income is too low for farmers to advance from low-input/low-output farming, resulting in nutrient mining. Serious efforts are required at national and regional levels to develop appropriate policies, technologies and capacities to address this challenge. Policies must ensure that soil fertility is not depleted in low-input systems while also helping to curb overuse of fertilizers that, in some case s, leads to serious damage to ecosystems. As part of FAO's mandate to develop a knowledge base in support of food security and rural livelihoods, the Regional Office for Asia and the Pacific commissioned national studies on fertilizer use in South Asia, which has the largest incidence of food insecurity in the region. The studies aim to identify gaps in prevailing strategies and policies, and make recommendations for improvement. This book contains four case studies from Bangladesh, Nepal, Pakis tan and Sri Lanka, and a chapter on guidelines for fertilizer demand assessment and forecasting.
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