Explanipedia

Delta yield predicts nitrogen fertilizer requirements for corn in US production systems Open

Raziel A. Ordóñez, Charles M. White, John T. Spargo, Jason P. Kaye, Matthew D. Ruark , et al. · 2025

Predicting crop nitrogen (N) fertilizer needs is a major challenge in contemporary agriculture. Despite the success of current N recommendation tools, environmental concerns over N pollution from agriculture, and the adoption of improved c…

Dataset for multi-model comparison and ensemble simulations of canola growth and yield across global sites Open

Di He, Jing Wang, Julianne M. Lilley, Brendan Christy, Munir Hoffmann , et al. · 2025

This paper describes the dataset that was used to test the reliability of eight crop models in simulating growth and yield of canola in response to sowing dates, nitrogen inputs and climate variability across five countries. The dataset in…

Digitized Seedbed Soil Quality Assessment from Worn and Edge Hardened Cultivator Sweeps Open

Jong-Myung Noh, Lijie Liu, Mehari Z. Tekeste, Qing Li, Jerry L. Hatfield , et al. · 2024

Tillage tools for seedbed soil management are often subjected to low stress abrasion wear, which could negatively affect seedbed quality and crop productivity. Limited studies exist that quantify the effects of worn tillage tools on seedbe…

Impacts of Soil Health Practices on Hydrologic Processes Open

Briana M. Wyatt, Antonio Arenas, Hannah E. Birgé, Jerry L. Hatfield, Rattan Lal , et al. · 2024

This paper explores the growing interest in soil health, emphasizing its importance in optimizing crop production, ecosystem function, and biodiversity. Defined by the USDA-NRCS as the soil’s capacity to function as a vital ecosystem, soil…

Dataset for multi-model comparison and ensemble simulations of canola growth and yield across global sites Open

Di He, Jing Wang, Julianne M. Lilley, Brendan Christy, Munir P. Hoffman , et al. · 2023

This dataset was used to test the reliability of eight crop models in simulating growth and yield of canola in response to sowing dates, nitrogen inputs and climate variability across five countries. The dataset includes four spring cultiv…

Effects of two categorically differing emergent wetland plants on evapotranspiration Open

James R. Kiniry, Amber S. Williams, Louise M. Reisner, Jerry L. Hatfield, Sumin Kim · 2023

Although wetlands are an important component of many landscapes, emergent plants have had variable impacts on wetland hydrology. In the present study, similar to what others have done with emergent plants, we investigated the impacts of bl…

A new convergent science framework for food system sustainability in an uncertain climate Open

Gregory N. Sixt, Michael Hauser, Nicole Tichenor Blackstone, Alejandra Engler, Jerry L. Hatfield , et al. · 2022

The complexity and interconnectivity of food systems and climate requires new thinking and research designs that better address the real‐world challenges of securing the resilience and sustainability of human and environmental systems. Cen…

A new perspective when examining maize fertilizer nitrogen use efficiency, incrementally Open

Newell R. Kitchen, Curtis J. Ransom, James S. Schepers, Jerry L. Hatfield, Raymond E. Massey , et al. · 2022

For maize ( Zea mays L.), nitrogen (N) fertilizer use is often summarized from field to global scales using average N use efficiency (NUE). But expressing NUE as averages is misleading because grain increase to added N diminishes near opti…

How reliable are current crop models for simulating growth and seed yield of canola across global sites and under future climate change? Open

Enli Wang, Di He, Jing Wang, Julianne M. Lilley, Brendan Christy , et al. · 2022

To better understand how climate change might influence global canola production, scientists from six countries have completed the first inter-comparison of eight crop models for simulating growth and seed yield of canola, based on experim…

Soil energetics: A unifying framework to quantify soil functionality Open

Kenneth M. Wacha, Allen Philo, Jerry L. Hatfield · 2022

Massive quantities of energy flow through soils during a year. Emerging views indicate that when supplied with abundant energy, soil biology acts as a self‐organizing system as soil microbes forge their habitats into a porous, well‐aggrega…

Agronomic approach to understanding climate change and food security Open

Peter O’Brien, Katherine C Kral-O’Brien, Jerry L. Hatfield · 2021

Climate impacts agricultural productivity and the distribution of crops grown around the world. Because the United States is a leader in food exports, climate change impacts in the United States have the potential to disproportionately aff…

Lengthening of maize maturity time is not a widespread climate change adaptation strategy in the US Midwest Open

Lori Abendroth, Fernando E. Miguez, Michael J. Castellano, Paul R. Carter, Carlos D. Messina , et al. · 2021

Increasing temperatures in the US Midwest are projected to reduce maize yields because warmer temperatures hasten reproductive development and, as a result, shorten the grain fill period. However, there is widespread expectation that farme…

Short‐term effects of nitrogen source on soil properties and plant growth Open

Kenneth M. Wacha, Jerry L. Hatfield, Peter O’Brien, Christian Dold · 2021

A randomized complete block design experiment was performed in a growth chamber study to evaluate the short‐term impact of N amendment source on CO 2 fluxes, aggregate stability, and aboveground plant biomass. Large intact soil cores ( n =…

Quantifying the time‐specific kinetic energy of simulated rainfall using a dynamic rain gauge system Open

Kenneth M. Wacha, Chi‐hua Huang, Peter O’Brien, A. N. Papanicolaou, Jerry L. Hatfield · 2021

Raindrop impact derives from the kinetic energy of falling raindrops. Determining the kinetic energy of rainfall requires the size distribution and terminal velocity of raindrops, which necessitates complex instrumentation. To avoid this, …

Measured and Simulated Carbon Dynamics in Midwestern U.S. Corn‐Soybean Rotations Open

Christian Dold, Kenneth M. Wacha, T. J. Sauer, Jerry L. Hatfield, John H. Prueger · 2020

Corn ( Zea mays L.) and soybean ( Glycine max [L.] Merr.) production dominate Midwestern U.S. agriculture and impact the regional carbon and nitrogen cycles. Sustaining soil carbon is important for corn‐soybean production (CS); however, qu…

Drainage N Loads Under Climate Change with Winter Rye Cover Crop in a Northern Mississippi River Basin Corn-Soybean Rotation Open

Robert W. Malone, Jürgen Garbrecht, Phillip Busteed, Jerry L. Hatfield, Dennis Todey , et al. · 2020

To help reduce future N loads entering the Gulf of Mexico from the Mississippi River 45%, Iowa set the goal of reducing non-point source N loads 41%. Studies show that implementing winter rye cover crops into agricultural systems reduces N…

Lego Plus Open

John R. Tester, Jerry L. Hatfield · 2020

NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract Session 1420 LEGO Plus Jerry M. Hatfield, Electrical Engineering John T. Tester, Mechanical Engineering College of Engineering and Nat…

Toward a Better Understanding of Genotype × Environment × Management Interactions—A Global Wheat Initiative Agronomic Research Strategy Open

Brian L. Beres, Jerry L. Hatfield, John A. Kirkegaard, Sanford D. Eigenbrode, William L. Pan , et al. · 2020

The Wheat Initiative (WI) and the WI Expert Working Group (EWG) for Agronomy (www.wheatinitiative.org) were formed with a collective goal to "coordinate global wheat research efforts to increase wheat production, quality, and sustainabilit…

STEWARDS: A decade of increasing the impact of Agricultural Research Service watershed research programs Open

E. J. Sadler, Jean L. Steiner, Jerry L. Hatfield, David James, Bruce Vandenberg , et al. · 2020

T he online database Sustaining the Earth's Watersheds–Agricultural Research Data System (STEWARDS), was developed in a six year project by a team from several USDA Agricultural Research Service (ARS) locations to deliver weather, hydrolog…

Deciphering the past to inform the future: preparing for the next (“really big”) extreme event Open

Debra P. C. Peters, N. Dylan Burruss, Gregory S. Okin, Jerry L. Hatfield, Stacey L. P. Scroggs , et al. · 2020

Climate change will bring more extremes in temperature and precipitation that will impact productivity and ecosystem resilience throughout agroecosystems worldwide. Historical events can be used to identify drivers that impact future event…

From the Ground to Space: Using Solar‐Induced Chlorophyll Fluorescence to Estimate Crop Productivity Open

Liyin He, Troy S. Magney, Debsunder Dutta, Yi Yin, Philipp Köhler , et al. · 2020

Timely and accurate monitoring of crops is essential for food security. Here, we examine how well solar‐induced chlorophyll fluorescence (SIF) can inform crop productivity across the United States. Based on tower‐level observations and pro…

Prediction of Evapotranspiration and Yields of Maize: An Inter-comparison among 29 Maize Models and Future Plans Open

Bruce A. Kimball, Kenneth J. Boote, Jerry L. Hatfield, L. R. Ahuja, Claudio Stöckle , et al. · 2020

Crop yield can be affected by crop water use (evapotranspiration, ET) and vice versa, so when trying to simulate one or the other, it can be important to simulate both well. Method: To determine how well 29 maize growth models can simulate…

Predicting crop yields and soil‐plant nitrogen dynamics in the US Corn Belt Open

Sotirios V. Archontoulis, Michael J. Castellano, Mark A. Licht, Virginia Nichols, Mitchell Baum , et al. · 2020

We used the Agricultural Production Systems sIMulator (APSIM) to predict and explain maize and soybean yields, phenology, and soil water and nitrogen (N) dynamics during the growing season in Iowa, USA. Historical, current and forecasted w…

Extreme soil surface temperatures reflect need to rethink agronomic management Open

Peter O’Brien, Jerry L. Hatfield · 2020

The soil surface exists at the soil–atmosphere interface and is critical in regulating transfers of water, energy, and nutrients in agroecosystems. Soil surface temperature plays an important role in the rate and quantity at which these re…

The impact of tillage row orientation on physical and chemical sediment enrichment Open

Kenneth M. Wacha, A. N. Papanicolaou, Benjamin Abban, Christopher G. Wilson, Christos Giannopoulos , et al. · 2020

This study aimed to better understand how tillage row orientation with respect to dominant flow‐pathway along hillslope impacts runoff and the transport of different sediment size fractions. Experimental plots were constructed in contour r…

Yield Gaps in Wheat: Path to Enhancing Productivity Open

Jerry L. Hatfield, Brian L. Beres · 2019

Wheat production is required to supply food for the world's population, and increases in production will be necessary to feed the expanding population. Estimates show that production must increase by 1 billion metric tons to meet this dema…

Applications of Vegetative Indices from Remote Sensing to Agriculture: Past and Future Open

Jerry L. Hatfield, John H. Prueger, Thomas J. Sauer, Christian Dold, Peter O’Brien , et al. · 2019

Remote sensing offers the capability of observing an object without being in contact with the object. Throughout the recent history of agriculture, researchers have observed that different wavelengths of light are reflected differently by …

Climate Warming Trends in the U.S. Midwest Using Four Thermal Models Open

Lori Abendroth, Fernando E. Miguez, Michael J. Castellano, Jerry L. Hatfield · 2019

Thermal time (TT) is an agro‐climate index widely established and used in predicting plant development based on temperature. This index is a powerful tool for measuring multi‐faceted changes in temperature occurring from climate change. In…

Are We Getting Better in Using Nitrogen?: Variations in Nitrogen Use Efficiency of Two Cereal Crops Across the United States Open

Chaoqun Lü, Jien Zhang, Peiyu Cao, Jerry L. Hatfield · 2019

Spatial variation and temporal trajectory of crop nitrogen use efficiency (NUE) have important implications for nitrogen management and environmental conservation. Previous studies have examined cross‐nation divergences in crop NUE but oft…

Upscaling Gross Primary Production in Corn-Soybean Rotation Systems in the Midwest Open

Christian Dold, Jerry L. Hatfield, John H. Prueger, T. B. Moorman, T. J. Sauer , et al. · 2019

The Midwestern US is dominated by corn (Zea mays L.) and soybean (Glycine max [L.] Merr.) production, and the carbon dynamics of this region are dominated by these production systems. An accurate regional estimate of gross primary producti…

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