Nitrification Kinetics and Nitrous Oxide Emissions when Nitrapyrin is Coapplied with Urea–Ammonium Nitrate

Omonode, Rex A.; Vyn, Tony J.

doi:10.2134/agronj2013.0184

Cited by 38 publications

(30 citation statements)

References 60 publications

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“…Fertilizer was applied pre-emergence by dribble banding between rows with a CO 2 -propelled hand sprayer. Nitrapyrin may affect nitrification up to 10 cm from the band (Omonode & Vyn, 2013). Selected management practices are reported in Table 1.…”

Section: Locationmentioning

confidence: 99%

“…In 2014, nontreated UAN amounts (Table 5) needed to be increased to 147 kg N ha -1 (8%) and 151 kg N ha -1 (11%) in order to obtain yields similar to pronitridine at 9.4 L ha -1 and nitrapyrin, respectively (Figure 1). The increase in the yield may be due reduced gaseous N loss in the presence of the nitrification inhibitors (Bronson et al, 1992;Zaman et al, 2009;Chen et al, 2010;Halvorson et al, 2010;Carneiro et al, 2010;Khalil, 2011;Di & Cameron, 2012;Burzaco et al, 2013;Omonode & Vyn 2013). This could be because spring conditions generally were wet (Table 3), gaseous N losses in claypan soils as high as 30% have been reported (Wilkison et al, 2000), and summer conditions were favorable for high yields.…”

Section: Precipitationmentioning

confidence: 99%

“…In a recent meta-analysis of enhanced efficiency fertilizers for corn management systems, nitrapyrin or NBPT plus DCD combined with UAN showed no significant effect (P = 0.84) on corn yield data (Cook et al, 2015). However, nitrapyrin and DCD have reduced N 2 O emissions 20 to 90% (Chen et al, 2010;Di & Cameron, 2012;Halvorson et al, 2010;Carneiro et al, 2010;Khalil, 2011;Burzaco et al, 2013;Omonode & Vyn, 2013), which can enhance the efficiency of a UAN application.…”

Section: Uan At 270 Kg N Ha -1mentioning

confidence: 99%

“…Nitrapyrin is effective for six to eight weeks in warm soil and can persist longer in cold soils (Trenkel, 2010). Nitrapyrin was marketed in the early 1970's (Prasad & Power, 1995), and it was recently reformulated as a water-based microencapsulated product (Instinct, Dow AgroSciences, Indianapolis, IN) for use with liquid fertilizer solutions to delay ammonium conversion to nitrate and subsequently reduce the potential for gaseous and leaching loss of N (Burzaco et al, 2013;Omonode & Vyn, 2013;Kyveryga & Blackmer, 2014). The probability of a yield response to nitrapyrin was greatest when spring precipitation was high (Kyveryga & Blackmer, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Pronitridine Nitrification Inhibitor With Urea Ammonium Nitrate for Corn

Nelson¹

2018

JAS

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Nitrification inhibitors have been used to enhance the efficiency of nitrogen fertilizers. This research evaluated the effectiveness of nontreated urea ammonium nitrate (UAN) at 0, 67, 135, 202, and 270 kg N ha -1 as well as UAN treated with nitrification inhibitors (pronitridine at 9.4 and 18.8 L ha -1 or nitrapyrin at 0.5 kg a.i. ha -1 ) to enhance N uptake and increase yield of corn (Zea mays L.). The study took place from 2012-2014 in upstate Missouri on a claypan soil. During the experiments, environmental conditions (high, medium, and low yielding years) affected corn response to pronitridine and nitrapyrin. In general, UAN plus pronitridine at 9.4 L ha -1 had similar effects on corn compared pronitridine at a higher (18.7 L ha -1 ) rate. During a high-yielding year (2014), in order to produce yields equivalent to 67 kg N ha -1 plus pronitridine at 9.4 L ha -1 or nitrapyrin, UAN needed to be increased 14 to 19%. Similarly, the amount of nontreated UAN needed to be increased 8 to 11% for yields to be equivalent to UAN at 135 kg N ha -1 plus pronitridine at 9.4 L ha -1 or nitrapyrin. Grain N removal and agronomic efficiency was highest with pronitridine at 9.4 L ha -1 and nitrapyrin combined with 67 and 135 kg N ha -1 , respectively. This research indicates that pronitridine was as effective as nitrapyrin when added to a pre-emergence application of UAN placed between the rows in a dribble band.

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Section: Locationmentioning

confidence: 99%

Section: Precipitationmentioning

confidence: 99%

Section: Uan At 270 Kg N Ha -1mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pronitridine Nitrification Inhibitor With Urea Ammonium Nitrate for Corn

Nelson¹

2018

JAS

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“…However, greater concentrations of soil NO 3 --N with NCU+NI than NCU before and at soil waterlogging ( Figure 3A) suggest nitrapyrin was effective at delaying nitrification and NO 3 --N loss early after N fertilization. Omonode and Vyn (2013) reported an increased half-life of nitrapyrin when band-applied with UAN from 15 to 25 days in comparison to band applied UAN without nitrapyrin.…”

Section: Soil Ammonium and Nitratementioning

confidence: 97%

Short-Term Soil Nitrous Oxide Emissions as Affected by Enhanced Efficiency Nitrogen Fertilizers and Temporarily Waterlogged Conditions

Zurweller¹,

Motavalli²,

Nelson³

et al. 2015

JAS

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Poorly-drained claypan soils in the Midwestern United States experience periods of short-term soil saturation shortly after pre-plant N fertilization, which may result in relatively large amounts of soil surface N 2 O emissions. Slowing the release or conversion of N fertilizer to soil NO 3 early in the growing season through the use of enhanced efficiency fertilizers (EEF) could be an effective strategy for reducing soil N 2 O emissions and gaseous N loss during a period of relatively low plant N demand. The objective of this study was to determine the effects of short-term soil waterlogging and pre-plant applications of conventional and EEF on soil inorganic N and N 2 O emissions during and up to four days following a waterlogging event during the dry down period. A two-year field study planted to corn (Zea mays L.) was initiated in 2012 on a poorly-drained claypan soil in Northeast Missouri. Waterlogging treatments were initiated at the V6 corn stage of phenological development. Main plots consisted of no waterlogging or water ponded 7 to 13 cm above the soil surface for three days, and sub-plot N fertilizer treatments [non-treated control (CO), or preplant broadcast applications of 168 kg N ha -1 of urea (NCU), urea plus nitrapyrin nitrification inhibitor (NCU+NI), and polymer coated urea (PCU)]. In 2012, greater cumulative soil N 2 O-N emissions of 2.8 kg N 2 O-N ha -1 were observed with PCU in comparison to NCU over the entire seven day sampling period. A significant portion of cumulative soil N 2 O emissions were associated with the four day soil drying phase in 2012, where PCU and NCU+NI had greater emissions (1.9 and 1.2 kg N 2 O-N ha -1 ) compared to NCU. The proportion of N fertilizer lost as N 2 O-N averaged over all pre-plant N treatments during the 2012 and 2013 sampling periods in the non-waterlogged soils were 0.04% and 0.03%, and 1.1% and 2.6% in the waterlogged soils, respectively. These results suggest that a large proportion of the cumulative soil surface N 2 O emissions typically observed in these poorly-drained soils over a growing season may occur during and shortly after soil waterlogging events.

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Sunflower Response to Nitrification Inhibitor Application

Chatterjee

2020

Crops & Soils

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Adding a nitrification inhibitor to fertilizer nitrogen (N) has potential to reduce N loss and increase N use efficiency. On-farm trials were conducted to determine sunflower seed yield and soil inorganic N responses to spring-applied urea N rates (100, 75, and 50% of the recommended N rate) and nitrification inhibitor (nitrapyrin) addition in eastern North Dakota. Earn 0.5 CEUs in Nutrient Management by reading this article and taking the quiz at

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Nitrification Kinetics and Nitrous Oxide Emissions when Nitrapyrin is Coapplied with Urea–Ammonium Nitrate

Cited by 38 publications

References 60 publications

Pronitridine Nitrification Inhibitor With Urea Ammonium Nitrate for Corn

Pronitridine Nitrification Inhibitor With Urea Ammonium Nitrate for Corn

Short-Term Soil Nitrous Oxide Emissions as Affected by Enhanced Efficiency Nitrogen Fertilizers and Temporarily Waterlogged Conditions

Sunflower Response to Nitrification Inhibitor Application

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