The best place for crop nutrients, like nitrogen, phosphorus and potassium, is in the soil where they can be used by the growing plants. 4R Nutrient Stewardship is a science-based approach for fertilizer management that supports economic, social and environmental goals.
Farm fields are very diverse based on the region, crop type, soil type and other geographic factors. The 4Rs provide a tool set for farmers and their agronomy advisers to make decisions on a local, field level. The following expert perspectives will share more about nutrient management decisions that support environmental sustainability.
Research is key to understanding the water quality and farm impacts of implementing 4R practices. Continued research initiatives will help uncover the best management practices and generate new tools to meet important goals for reducing nutrient loading.
There are two types of phosphorus (P) that can cause trouble in freshwater ecosystems. One is sediment, or particulate, P that can be washed into a ditch, stream or river by erosion. The other is soluble P, which is dissolved in the water that runs off into a stream or river. The Ohio State University soil science researchers and other partners have developed the On-Field Ohio web-based tool for farmers to use in making science-based management decisions that can lower their risk of phosphorus loss.
What are the 4Rs?
What are some of the management practices that can help reduce nutrient runoff and water contamination?
Besides agricultural practices, what are some of the other contributing factors to HAB?
What research, strategies and technologies can farmers use to help protect water quality?
Many people, including legislators, conservation groups and farmer organizations, are working on solutions. Which efforts will be effective?
Lake Erie shares its border with the Canadian province of Ontario. Many nutrient stewardship strategies and water quality goals cross borders to benefit Lake Erie.