Int. Plant Nutrition Inst., Founda- tion for Agron. Res., and Colorado State Univ., Boulder. CD-ROM.Sudduth, KA; NR Kitchen & ST Drummond. 2010. Comparison of three canopy reflectance sensors for variable-rate
At sidedressing, 157 kg N ha1 of available N was targeted for application with the different N sources at the fourth leaf collar stage of corn (V4). Sidedressing did not impact plant population compared with the non﹕idedressed control in 2018, but sidedressed LSM reduced plant population ...
Precise application of manure to a corn crop can be as effective as commercial N fertilizer for yield response and can have little threat to ground water quality.doi:10.1080/01904169809365403Zhang, HailinSmeal, DanTomko, JanTaylor & Francis GroupJournal of Plant Nutrition...
Injecting side-dressed UAN may produce higher corn yields than surface application in years when dry weather follows side-dressing. In years when rainfall occurs shortly after application, subsurface placement is not as critical. Subsurface placement is normally used to control nitrogen losses. ...
“So you buy the twin pack; then you mix both in a tankmix in your field and go with in-furrow application during seeding,” he says. “Our product is a slow-release technology, meaning that the product is liberated during the life cycle of the crop based on the fact you apply it ...
The last factor was varying N application rate, split applied as feather meal during the growing season. There was a positive yield response to feather meal in both years with yields reaching 18.6 and 21.5 Mg ha–1 in 2011 and 2012, respectively, with 224 and 112 kg N ha–1 feather ...
Addition of NH4‐N to NO3‐N testing did not improve the predictive capability of the soil test for supplemental corn N needs. The time of sampling may be delayed as much as two weeks without a loss of prediction accuracy.doi:10.1080/00103629909370182...
Pioneer and university research gives new insights into the timing of nitrogen uptake and sources of N utilization by corn.
Timing of N applicationNitrogen rateZea mays LMaintaining efficient N nutrition for irrigated corn (Zen mays L.) grown on deep sands is difficult due to low N supplying capabilities and leaching losses of applied N. Scheduled applications of N by the use of center-pivot irrigation equipped with...
The most profitable rate of application of nitrogen fertilizer is given by the equation: x = –21 + 284 log K –2.8b1 where x represents the most profitable rate of nitrogen to apply to a soil with a nitrate production of b1 ppm., when K = the price of corn per bushel divided by ...