Tom Bruulsema
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View article: Defining relative yield for soil test correlation and calibration trials in the Fertilizer Recommendation Support Tool
Defining relative yield for soil test correlation and calibration trials in the Fertilizer Recommendation Support Tool Open
The Fertilizer Recommendation Support Tool (FRST) will perform correlations between soil nutrient concentrations and crop response to fertilization from user‐selected datasets in the FRST national database. Yield response for the nutrient …
View article: Publisher Correction: Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates
Publisher Correction: Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates Open
In the version of this article originally published, there were errors in Fig. 7 and equation (4). In Fig. 7, the center heading, now reading “Food plate to farm gate price ratio = 3” originally read, in part, “ratio = 1.” In equation 4, n…
View article: Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates
Establishing long-term nitrogen response of global cereals to assess sustainable fertilizer rates Open
Insight into the response of cereal yields to nitrogen fertilizer is fundamental to improving nutrient management and policies to sustain economic crop benefits and food sufficiency with minimum nitrogen pollution. Here we propose a new me…
View article: Comment on essd-2021-166
Comment on essd-2021-166 Open
Abstract. Soil represents the largest phosphorus (P) stock in terrestrial ecosystems. Determining the amount of soil P is a critical first step in identifying sites where ecosystem functioning is potentially limited by soil P availability.…
View article: Meta‐analysis of yield and nitrous oxide outcomes for nitrogen management in agriculture
Meta‐analysis of yield and nitrous oxide outcomes for nitrogen management in agriculture Open
Improved nitrogen (N) use is key to future food security and environmental sustainability. While many regions still experience N shortages, agriculture is the leading global emitter of N 2 O due to losses exacerbated by N surpluses in othe…
View article: A New Paradigm for Plant Nutrition
A New Paradigm for Plant Nutrition Open
The coming 10-20 years will be most critical for making the transition to a global food system in which all stakeholders look at food and nutrients in a holistic manner, including their hidden environmental, health and socio-economic costs…
View article: The Science of 4R Nutrient Stewardship for Phosphorus Management across Latitudes
The Science of 4R Nutrient Stewardship for Phosphorus Management across Latitudes Open
When phosphorus (P) fertilizers were introduced, the main goals were to increase the productivity and profitability of agricultural crop production. Over time, other goals have been added: to minimize losses affecting water quality, to inc…
View article: Inconsistencies undermine the conclusion that agriculture is a dominant source of NO <sub> <i>x</i> </sub> in California
Inconsistencies undermine the conclusion that agriculture is a dominant source of NO <sub> <i>x</i> </sub> in California Open
Several inconsistencies undermine the conclusion that agricultural soils are a dominant source of NO x pollution in California.
View article: Increased Soluble Phosphorus Loads to Lake Erie: Unintended Consequences of Conservation Practices?
Increased Soluble Phosphorus Loads to Lake Erie: Unintended Consequences of Conservation Practices? Open
Cumulative daily load time series show that the early 2000s marked a step‐change increase in riverine soluble reactive phosphorus (SRP) loads entering the Western Lake Erie Basin from three major tributaries: the Maumee, Sandusky, and Rais…