scholarly journals Soil‐test biological activity with the flush of CO 2 : V. Validation of nitrogen prediction for corn production

2020 ◽  
Vol 112 (3) ◽  
pp. 2188-2204 ◽  
Author(s):  
Alan J. Franzluebbers
2018 ◽  
Vol 82 (3) ◽  
pp. 685-695 ◽  
Author(s):  
Alan J. Franzluebbers ◽  
Mary R. Pershing ◽  
Carl Crozier ◽  
Deanna Osmond ◽  
Michelle Schroeder-Moreno

HortScience ◽  
1991 ◽  
Vol 26 (5) ◽  
pp. 491b-491
Author(s):  
James E. Brown ◽  
Daniel W. Porch ◽  
Ronald L. Shumack ◽  
Charles H. Gilliam ◽  
Larry Curtis

In sweet corn field plots in Alabama, urea-ammonia nitrogen was applied to the soil through underground and aboveground drip fertigation systems. Dry nitrogen in the form of ammonium nitrate was surface band-applied as a control. Nitrogen rates of 67 kg/ha and 135 kg/ha were applied in either 2 or 4 applications by each of the 3 methods. P and K fertilizers were applied to all treatments in a dry form according to soil test recommendations. The underground drip pipe was placed 23 cm beneath the soil surface in each row. Nitrogen (wet or dry) rate of 135 kg/ha produced greater sweet corn yield than the 67 kg/ha rate with no effect of application number on yield in 1988, when rainfall was less than adequate. In 1987 and 1989, when rainfall was adequate, no differences occurred in yields regardless of number, rate, or method of application of nitrogen.


2018 ◽  
Vol 110 (5) ◽  
pp. 2033-2049 ◽  
Author(s):  
Alan J. Franzluebbers ◽  
Smriti Pehim-Limbu ◽  
Matt H. Poore

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