Corn Yield Response to Nitrogen Fertilizer Timing and Deficiency Level

2002 ◽  
Vol 94 (3) ◽  
pp. 435-441 ◽  
Author(s):  
Peter C. Scharf ◽  
William J. Wiebold ◽  
John A. Lory
Keyword(s):  
Nitrogen Fertilizer ◽  
Yield Response ◽  
Corn Yield

scholarly journals Variability in Corn Yield Response to Nitrogen Fertilizer in Eastern Canada

2017 ◽  
Vol 109 (5) ◽  
pp. 2231-2242 ◽  
Author(s):  
Lucie A. Kablan ◽  
Valérie Chabot ◽  
Alexandre Mailloux ◽  
Marie-Ève Bouchard ◽  
Daniel Fontaine ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Yield Response ◽  
Corn Yield ◽  
Eastern Canada

scholarly journals Hybrid Selection and Agronomic Management to Lessen the Continuous Corn Yield Penalty

Agronomy ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 228 ◽  
Author(s):  
Alison Vogel ◽  
Frederick Below
Keyword(s):  
Nitrogen Fertilizer ◽  
Nitrogen Availability ◽  
Field Experiments ◽  
Yield Response ◽  
Corn Yield ◽  
Intensive Management ◽  
Continuous Corn ◽  
Agronomic Management ◽  
Hybrid Selection ◽  
Yield Penalty

Yield reductions occur when corn (Zea mays L.) is continuously grown compared to when it is rotated with soybean [Glycine max (L.) Merr.]; primarily due to soil nitrogen availability, corn residue accumulation, and the weather. This study was conducted to determine if a combination of agronomic practices could help overcome these causative factors of the continuous corn yield penalty (CCYP) to obtain increased corn yields. Field experiments conducted during 2014 and 2015 at Champaign, IL, U.S.A. assessed the yield penalty associated with continuous corn verses long-term corn following soybean. Agronomic management was assessed at a standard level receiving only a base rate of nitrogen fertilizer, and compared to an intensive level, which consisted of additional N, P, K, S, Zn, and B fertility at planting, sidedressed nitrogen fertilizer, and a foliar fungicide application. Two levels of plant population (79,000 verses 111,000 plants ha−1) and eight different commercially-available hybrids were evaluated each year. Across all treatments, the CCYP was 1.53 and 2.72 Mg ha−1 in 2014 and 2015, respectively. Intensive agronomic management improved grain yield across rotations (2.17 Mg ha−1 in 2014 and 2.28 Mg ha−1 in 2015), and there was a 40 to 60% greater yield response to intensive management in continuous corn verses the corn-soybean rotation, suggesting intensified management as a method to mitigate the CCYP. With select hybrids, intensive management reduced the CCYP by 30 to 80%. Agronomic management and hybrid selection helped alleviate the CCYP demonstrating continuous corn can be managed for better productivity.

Corn Yield Response to Nitrogen Fertilizer and Irrigation in the Southeastern Coastal Plain

2010 ◽  
Vol 26 (3) ◽  
pp. 429-438 ◽  
Author(s):  
K. C. Stone ◽  
C. R. Camp ◽  
E. J. Sadler ◽  
D. E. Evans ◽  
J. A. Millen
Keyword(s):  
Nitrogen Fertilizer ◽  
Coastal Plain ◽  
Yield Response ◽  
Corn Yield ◽  
Southeastern Coastal Plain
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