A Publication of the International Plant Nutrition Institute (IPNI)
Explore the tactical plan for each IPNI Regional Program.
Nickel (Ni) is the most recent element to be added to the list of essential plant nutrients. While it was identified as a component of the urease enzyme as early as 1975, it was not formally recognized as an essential nutrient until 1987.
Iron (Fe) is a nutrient required by all organisms, including microbes, plants, animals, and humans. It was first recognized as a necessary plant nutrient in the mid 19th century when Fe deficient grapes were successfully treated with foliar applications of Fe salts. Iron is a component of many vital plant enzymes and is required for a wide range of biological functions.
Silicon (Si) is generally not considered an essential element for plant growth. However, due to its important role in plant nutrition, particularly under stressful conditions, it is now recognized as a “beneficial substance” or “quasi-essential.”
A scalable pilot project, initiated by the Sustainable Development Solutions Network and based on the 4R Nutrient Stewardship framework.
“A person may need a doctor, lawyer, architect, and so many other professionals a few times in one’s life, but everyone needs a farmer at least three times a day.”
New booklets on Effectiveness of P fertilization in Russian and English.