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English Language Preference English French Chinese Portuguese Russian Spanish About IPNI | Store | Site Map | Search -- Publications Research News Topics Nutrient & Regional Programs -- Close Topics A B C D E F G H I K L M N O P R S T V W Y Z Category Crop Nutrient Home / Programs / Americas and Oceania Group / North American Program North American Program Program Home Topics Publications Soil Test Levels in North America Tools & Calculators Research Programs 14 Sep 2017 Long-term Research Documents Importance of Balanced Plant Nutrition The Research with Impact series highlights case study examples of solution-driven research supported by IPNI. Read More 07 Jun 2017 4R CCA Nutrient Management Specialist Study Guide The International Certified Crop Adviser (ICCA) Program developed the 4R NMS (4R Nutri­ent Management Specialist) Certification to meet the growing demand for qualified advisers with focused knowledge and skills in nutrient management. This study guide was developed by IPNI to support the first edit Read More 24 Apr 2016 4R Decision-Making Guides When decisions are made regarding the 4R’s there are many benefits, including better crop growth, decreased nutrient leakage to the environment, and the protection of natural areas and wildlife. Read More 31 Mar 2016 Soil Test Levels in North America The 2015 Summary Update provides interpretive analysis of the results of the most recent survey of soil test levels for North America. Read More 02 Dec 2015 Better Crops: The Fertility of North American Soils: A Preliminary Look at 2015 Results The 2015 soil test summary is the fourth in a series of summaries dating back to 2001, 2005, and 2010. For the first time, trends in relative frequencies in soil test levels are being examined. Preliminary results for Corn Belt states are showing a reduction in percentages of samples testing high Read More 02 Dec 2015 Better Crops: Phosphorus Management for Potatoes Economic rates of P fertilization are higher for potatoes than for many other crops due to shallow roots and sparse root hairs. Read More Tom Bruulsema in Ridgetown, Ontario. 30 Jun 2015 IPNI Appoints Phosphorus Program Director June 26, 2015 – Peachtree Corners, GA, USA – The International Plant Nutrition Institute (IPNI) has appointed Dr. Tom Bruulsema as its Phosphorus Program Director. “This change in focus reflects a need to devote greater attention to phosphorus, its role in global food security, and its potential f Read More 06 Mar 2015 Plant Nutrition Today This quarterly publication features current issues in plant nutrition for North America. Read More 16 Jan 2015 NuGIS: Nutrient Use Geographic Information System The Nutrient Use Geographic Information System (NuGIS) integrates multiple tabular and spatial datasets to create county-level estimates of nutrients applied to the soil in fertilizer and livestock manure, and nutrients removed by harvested agricultural crops. Read More 14 Jan 2015 Nutri-Facts IPNI's Nutri-Facts series focuses on each essential plant nutrient - presenting key facts concerning their use. Read More 4R Adoption Education on Plant Nutrition Better Fertilizer Recommendations Yield Gaps Sustainability Presentations More Topics Please Note The agronomic programs of IPNI outside Canada ceased operations on April 1, 2019. This website remains online to provide a repository of past IPNI publications. Questions about past IPNI operations and projects can be forwarded to the International Fertilizer Association, The Fertilizer Institute, or Fertilizer Canada. IPNI's Mission The mission of IPNI is to develop and promote scientific information about the responsible management of plant nutrition for the benefit of the human family. IPNI is a global organization with initiatives addressing the world's growing need for food, fuel, fiber and feed. There is widespread concern for issues such as climate change and relationship of crop production to the environment and ecosystems, and IPNI programs are achieving positive results. Best management practices (BMPs) for nutrient stewardship encourage the concept of applying the right product (source), at the right rate, at the right time, and in the right place. View The 2018 Program Report Publications Better Crops IPNI Insights Nutrient Source Specifics (English) Plant Nutrition Today More -- More -- Highlights Member Companies About IPNI Nutrient Uptake & Removal Resources Photo Contest -- Search Go -- Connect With IPNI @PlantNutrition PlantNutritionInst RSS Feed (North American Program) RSS Feed (IPNI) Subscribe to Publications Subscribe -- Copyright © 2019 International Plant Nutrition Institute. All rights reserved. -- Privacy Policy , Terms of Service...