Enhanced nitrogen fertiliser technologies support the ‘4R' concept to optimise crop production and minimise environmental losses

Snyder, Clifford S.

doi:10.1071/sr16335

Cited by 83 publications

(56 citation statements)

References 74 publications

(41 reference statements)

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“…There is a notable knowledge gap regarding the impacts of urease inhibitors or double inhibitors on NO 3 – leaching. The meta‐analysis by Eagle et al (2017) exposed the lack of studies that measure nitrogen losses through multiple pathways needed to make simultaneous assessments of the effects on NH 3 , NO 3 – , and N 2 O losses (Snyder, 2017).…”

Section: Can We Reduce Losses Through Multiple Pathways?mentioning

confidence: 99%

“…Filling these research gaps is a priority of the 4R Research Fund. Until such information is available, the utilization of stabilized nitrogen sources on a particular field depends on multiple factors, such as field-level trends in nitrogen use efficiency, on-farm evaluation of efficacy, the agronomic and environmental knowledge of crop advisers or growers making the management decisions, crop and fertilizer economics, the availability of nutrient management technology, and the magnitude and risks associated with the dominant loss pathways (Snyder, 2017). These considerations recognize that the agronomic, economic, social, and environmental goals must be simultaneously assessed for effective N 2 O emission mitigation using stabilized nitrogen sources.…”

Section: Can We Reduce Losses Through Multiple Pathways?mentioning

confidence: 99%

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Can stabilized nitrogen fertilizer sources reduce losses through multiple loss pathways?

Maaz

2018

Crops & Soils

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This article looks at two recent reviews that highlight the effectiveness of stabilized nitrogen fertilizers in reducing N2O emissions in Midwest corn production. Are these findings consistent with other research in a wider geography or other cropping systems? What are the impacts of stabilized nitrogen sources on other nitrogen losses? What are the effects on crop yields? Earn 0.5 CEUs in Nutrient Management by reading this article and taking the quiz at http://www.certifiedcropadviser.org/education/classroom/classes/607.

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Section: Can We Reduce Losses Through Multiple Pathways?mentioning

confidence: 99%

Section: Can We Reduce Losses Through Multiple Pathways?mentioning

confidence: 99%

Can stabilized nitrogen fertilizer sources reduce losses through multiple loss pathways?

Maaz

2018

Crops & Soils

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“…Enhanced‐efficiency fertilizers (EEF) include slow‐ or controlled‐release N fertilizers that are coated or encapsulated or fertilizers treated with nitrification and/or urease inhibitors. Selecting the use of an EEF in a crop management system encompasses the right source, right time, and right place components of the 4R nutrient stewardship concept (Snyder, 2016).…”

Section: Enhanced‐efficiency Fertilizers As Part Of a 4r Strategymentioning

confidence: 99%

The 4Rs in crop nitrogen research

Flis

2017

Crops & Soils

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The goal of nitrogen (N) application is for crop uptake, resulting in improved yield and quality of the crop harvested. However, N fertilizer applications are also susceptible to emission losses, as ammonia (NH 3 ) and nitrous oxide (N 2 O), and surface and groundwater losses as nitrate-N (NO 3 -). In the past, research has focused on the rate of nutrient application on yield, quality, and N losses. As producers look to improve nutrient use efficiency, the need for research to address other factors in nitrogen application has grown. Specifically, a growing number of researchers are looking at how the 4Rs of nutrient application-source, rate, time, and place-affect crop uptake and yields. The fertilizer industry established the 4R Research Fund to help establish sustainability indicators and environmental impact data for implementation of 4R nutrient stewardship across North America.Improved N use efficiency can be achieved through combinations of rate, source, time, and place. A recent roundtable meeting identified as a goal "broadening the focus of applied research beyond N rate to move toward more integrated agricultural systems," and cited the 4R nutrient stewardship approach as a step to help represent A growing number of researchers are looking at how the 4Rs of nutrient application-source, rate, time, and place-affect crop uptake and yields. This article begins a new series from The Fertilizer Institute highlighting some of the latest 4R research. Earn 0.5 CEUs in Nutrient Management by reading this article and taking the quiz at www.certifiedcropadviser.org/ certifications/self-study/825. crop nitrogen research

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“…The efficiency of N use can be improved in many regions by applying the '4R principles', the right fertiliser type, at the right time, in the right place and at the right amount (Snyder 2017). Even where N fertiliser is on average used sparingly, such as in sub-Saharan Africa, there is a paradox of insufficient N use causing low crop yield and human malnutrition, as well as excessive N contributing to eutrophication of iconic water bodies (Masso et al 2017).…”

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confidence: 99%

“…Enhanced efficiency fertilisers (EEF) are products with coatings or with the addition of urease or nitrification inhibitors that may improve crop N-use efficiency (Snyder 2017). Many papers at INI2016 reported the use of EEF to mitigate environmental N losses to surface and groundwater, and gaseous emissions of ammonia and nitrous oxide (N 2 O) to the atmosphere.…”

mentioning

confidence: 99%