Radish and annual ryegrass alter corn yield response to nitrogen rate

2021 ◽  
Author(s):  
Jane M. F. Johnson ◽  
Drew Scott ◽  
Sharon Weyers
Keyword(s):  
Yield Response ◽  
Corn Yield ◽  
Annual Ryegrass ◽  
Nitrogen Rate

scholarly journals Modeling Long-Term Corn Yield Response to Nitrogen Rate and Crop Rotation

2016 ◽  
Vol 7 ◽  
Author(s):  
Laila A. Puntel ◽  
John E. Sawyer ◽  
Daniel W. Barker ◽  
Ranae Dietzel ◽  
Hanna Poffenbarger ◽  
...  
Keyword(s):  
Crop Rotation ◽  
Yield Response ◽  
Corn Yield ◽  
Nitrogen Rate

Corn Yield Response to Nitrogen Rate and Timing in Sandy Irrigated Soils

2005 ◽  
Vol 97 (4) ◽  
pp. 1230-1238 ◽  
Author(s):  
Ronald J. Gehl ◽  
John P. Schmidt ◽  
Larry D. Maddux ◽  
W. Barney Gordon
Keyword(s):  
Yield Response ◽  
Corn Yield ◽  
Nitrogen Rate ◽  
Irrigated Soils

scholarly journals Weather effects on corn response to in-season nitrogen rates

2013 ◽  
Vol 93 (3) ◽  
pp. 407-417 ◽  
Author(s):  
M. Xie ◽  
N. Tremblay ◽  
G. Tremblay ◽  
G. Bourgeois ◽  
M. Y. Bouroubi ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Yield Response ◽  
Corn Yield ◽  
Humid Climate ◽  
Nitrogen Rate ◽  
Nitrogen Response ◽  
Weather Effects ◽  
Nitrogen Rates ◽  
The Impact ◽  
Low Precipitation

Xie, M., Tremblay, N., Tremblay, G., Bourgeois, G., Bouroubi, M. Y. and Wei, Z. 2013. Weather effects on corn response to in-season nitrogen rates. Can. J. Plant Sci. 93: 407–417. The response of corn yield to in-season nitrogen rate (ISNR) fertilizer applications in a temperate humid climate is conditioned to a great extent by prevailing weather conditions, which affect nitrogen use efficiency and raise the level of uncertainty for making management decisions. A better understanding of the effects of temperature, expressed as accumulated corn heat units (CHU), and precipitation would help to ensure that a “closer-to-optimal” nitrogen rate is supplied at side-dressing. A meta-analysis was performed using a database of nitrogen response trials conducted from 1997 to 2008 in 60 locations in the corn grain production area of Québec, in conjunction with a weather database. Meta-analysis is a statistical procedure for combining results from a series of studies that is used in many fields of research. It is used to assess treatment effect (also called effect size) in a group of studies or experiments. Corn yield response to ISNR was negatively correlated with overall CHU accumulation, but positively correlated with CHU accumulation before side-dressing. Responses also showed a stronger relationship with cumulative precipitation (PPT) before side-dressing than after side-dressing. High and evenly distributed precipitation before side-dressing tended to increase responses to ISNR. It can be concluded that low CHU, low precipitation and low precipitation evenness before side-dressing reduce the impact of ISNR on corn yield.

A dynamic model of corn yield response to water

1980 ◽  
Vol 16 (1) ◽  
pp. 59-64 ◽  
Author(s):  
Thomas H. Morgan ◽  
Arlo W. Biere ◽  
Edward T. Kanemasu
Keyword(s):  
Dynamic Model ◽  
Yield Response ◽  
Corn Yield ◽  
Response To Water

Corn Yield Response to Managed Drainage and Polymer-Coated Urea

2015 ◽  
Vol 107 (2) ◽  
pp. 435-441 ◽  
Author(s):  
Patrick R. Nash ◽  
Kelly A. Nelson ◽  
Peter P. Motavalli ◽  
Stephen H. Anderson
Keyword(s):  
Yield Response ◽  
Corn Yield ◽  
Coated Urea ◽  
Polymer Coated Urea

Simulating Corn Yield Response to Irrigation Timings: Validation of the Epic Model

jpa ◽  
1992 ◽  
Vol 5 (2) ◽  
pp. 237-242 ◽  
Author(s):  
K. J. Bryant ◽  
V. W. Benson ◽  
J. R. Kiniry ◽  
J. R. Williams ◽  
R. D. Lacewell
Keyword(s):  
Yield Response ◽  
Corn Yield ◽  
Epic Model

Corn Yield Response to Timing of Strip-Tillage and Nitrogen Source Applications

2013 ◽  
Vol 105 (3) ◽  
pp. 623-630 ◽  
Author(s):  
P. R. Nash ◽  
K. A. Nelson ◽  
P. P. Motavalli
Keyword(s):  
Nitrogen Source ◽  
Yield Response ◽  
Corn Yield ◽  
Strip Tillage

scholarly journals Corn Response Across Plant Densities and Row Configurations for Different Moisture Environments

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Kipling S. Balkcom ◽  
Kira L. Bowen
Keyword(s):  
Cover Crops ◽  
Plant Density ◽  
Conservation Tillage ◽  
Summer Rainfall ◽  
Moisture Stress ◽  
Yield Response ◽  
Corn Yield ◽  
Measured Variable ◽  
Irrigation Level ◽  
Plant Densities

Corn (Zea mays L.) production in the Southeast can be negatively impacted by erratic summer rainfall and drought-prone, coarse-textured soils, but irrigation combined with conservation tillage and cover crops may support greater plant densities arranged in different row configurations to improve yield. We examined five site-years of data across two soil types in Alabama to compare corn yields in a conservation system across three plant densities for single- and twin-row configurations in dryland and irrigated moisture regimes. Treatments were arranged with a split plot treatment restriction in a RCB design with three replications. Main plots were irrigation level (no irrigation and irrigation), and subplots were a factorial arrangement of three plant densities (5.9, 7.4, and 8.9 plants m−2) and row configurations (single and twin). A moisture environment (low and moderate) variable, defined by growing season rainfall, was used to average over site-years. In general, irrigation in the moderate-moisture environment improved each measured variable (plant height, stover yield, corn yield, and test weight) and decreased grain N concentration and aflatoxin levels compared to the low-moisture environment with no irrigation. Benefits of increased rainfall and irrigation to reduce soil moisture stress across drought-prone soils were evident. Pooled results across all site-years indicated no yield response as plant density increased, but greater yields were observed with the greatest plant densities in the moderate-moisture environments. No advantage for twin-row corn production was observed across five site-years in Alabama, which indicates either row configuration can be successfully adopted.

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