Nitrogen Rate, Landscape Position, and Harvesting of Corn Stover Impacts on Energy Gains and Sustainability of Corn Production Systems in South Dakota

2010 ◽  
Vol 102 (6) ◽  
pp. 1535-1541 ◽  
Author(s):  
F. Mamani-Pati ◽  
D. E. Clay ◽  
C. G. Carlson ◽  
S. A. Clay ◽  
G. Reicks ◽  
...  
2014 ◽  
Vol 69 (6) ◽  
pp. 532-542 ◽  
Author(s):  
E. J. Kladivko ◽  
M. J. Helmers ◽  
L. J. Abendroth ◽  
D. Herzmann ◽  
R. Lal ◽  
...  

Agronomy ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 614
Author(s):  
Sarah A. Moore ◽  
M. Scott Wells ◽  
Russ W. Gesch ◽  
Roger L. Becker ◽  
Carl J. Rosen ◽  
...  

Commercial sweet corn (Zea mays convar. saccharata var. rugosa) production has a proportionally high potential for nutrient loss to waterways, due to its high nitrogen (N) requirements and low N use efficiency. Cover crops planted after sweet corn can help ameliorate N lost from the field, but farmers are reluctant to utilize cover crops due to a lack of economic incentive. Pennycress (Thlaspi arvense L.) is a winter annual that can provide both economic and environmental benefits. Five N-rates (0, 65, 135, 135 split and 200) were applied pre-plant to sweet corn. After the sweet corn harvest, pennycress was planted into the sweet corn residue with two seeding methods and harvested for seed the following spring. Residual inorganic soil N (Nmin), pennycress biomass, biomass N and yield were measured. The nitrogen rate and seeding method had no effect on pennycress yield, biomass, or biomass N content. The nitrogen rate positively affected Nmin at pennycress seeding, wherein 200N plots had 38–80% higher Nmin than 0N plots, but had no effect on Nmin at pennycress harvest. Control treatments without pennycress had an average of 27–42% greater Nmin. In conclusion, pennycress can act as an effective N catch crop, and produce an adequate seed yield after sweet corn without the need for supplemental fertilization.


2014 ◽  
Vol 106 (6) ◽  
pp. 2248-2254 ◽  
Author(s):  
D. B. Egli ◽  
J. L. Hatfield

2019 ◽  
Vol 75 (1) ◽  
pp. 91-102 ◽  
Author(s):  
J.S. Andrews ◽  
Z.P. Sanders ◽  
M.L. Cabrera ◽  
N.S. Hill ◽  
D.E. Radcliffe

2019 ◽  
Vol 111 (3) ◽  
pp. 1524-1532
Author(s):  
Murali K. Darapuneni ◽  
Omololu J. Idowu ◽  
Leonard M. Lauriault ◽  
Syam K. Dodla ◽  
Kiran Pavuluri ◽  
...  

Author(s):  
Ibrahim Mubarak

Abstract: The objective of this work was to evaluate the use of both single- and triple-row production systems in two drip-irrigated sweet corn cultivars under dry Mediterranean climate conditions. A two-year field experiment (2017 and 2018) was carried out in clay loam soil. The following three combinations spacing between crop rows and drip-line lateral spacing, with three replicates for each cultivar, were applied: single rows at 75 cm spacing, with one drip-line lateral spacing for each crop row; single rows at 75 cm row spacing, with one drip-line lateral spacing for three crop rows; and triple rows, 37.5 cm apart, on 225 cm centers, with one drip-line lateral spacing for each triple row. The responses of both cultivars were similar. In addition, husked cob yield and irrigation water use efficiency (IWUE) significantly reduced as the drip-line lateral spacing increased in single rows. Yield loss was 35.2% in relation to the 75 cm spacing. However, when the triple-row system with 225 cm drip-line lateral spacing was adopted, yield and IWUE were noticeably improved, and the yield loss was moderated to 16%, due to the improvement in soil water conditions in the triple rows. For improved yield and IWUE, the combination of triple rows with the 225-cm drip-line lateral spacing is an efficient drip-irrigated planting pattern for sweet corn production in dry Mediterranean climate conditions.


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