Response of turfgrass to urea-based fertilizers formulated to reduce ammonia volatilization and nitrate conversion

Henning, Shelby; Branham, B. E.; Mulvaney, R. L.

doi:10.1007/s00374-012-0696-z

Cited by 24 publications

(22 citation statements)

References 53 publications

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“…Some previous reports have shown that the use of a urease inhibitor could increase the yields of crops2526, while others did not show any significant yield increases272829. A meta-analysis conducted by Abalos et al 30.…”

Section: Discussionmentioning

confidence: 96%

A new urease-inhibiting formulation decreases ammonia volatilization and improves maize nitrogen utilization in North China Plain

Cui

Liu

et al. 2017

Sci Rep

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Overuse of urea, low nitrogen (N) utilization, and large N losses are common in maize production in North China Plain (NCP). To solve these problems, we conducted two field experiments at Shangzhuang and Quzhou in NCP to test the ability of a newly developed urease inhibitor product Limus® to decrease NH3 volatilization from urea applied to maize. Grain yield, apparent N recovery efficiency (REN) and N balance when using urea applied with or without Limus were also measured over two maize growing seasons. Cumulative NH3 loss in the two weeks following urea application without Limus ranged from 9–108 kg N ha−1, while Limus addition significantly decreased NH3 loss by a mean of 84%. Urea with Limus did not significantly increase maize yields (P < 0.05) compared with urea alone. However, a significant 11–17% improvement in REN with Limus was observed at QZ. The use of urea-N plus Limus would permit a reduction in N applications of 55–60% compared to farmers’ practice and/or further 20% N saving compared with optimized urea-N rate (150 kg N ha−1, based on N requirement by target yield of 7.5 t ha−1), and would achieve the same maize yields but with significantly decreased NH3 loss and increased N utilization.

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Section: Discussionmentioning

confidence: 96%

A new urease-inhibiting formulation decreases ammonia volatilization and improves maize nitrogen utilization in North China Plain

Cui

Liu

et al. 2017

Sci Rep

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“…Among them we may mention steam distillation [21], titration [14,22], micro-plot-forced draft and micro-meteorology [23], and the continuous airflow enclosure method [24]. However, they are rather laborious and, in some cases, time-consuming methods.…”

Section: Introductionmentioning

confidence: 98%

Cuban zeolite as ammonium carrier in urea-based fertilizer pellets: Photoacoustic-based sensor for monitoring N-ammonia losses by volatilization in aqueous solutions

Bueno

Filho

Almeida

et al. 2015

Sensors and Actuators B: Chemical

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“…These, and more recent studies, have employed varying application and collection methods. As a result, NH 3 ‐N volatilization from turfgrass systems is reported to range from 0.04 to 60% of urea‐N fertilizer applied .…”

Section: Introductionmentioning

confidence: 99%

Method for Flux‐Chamber Measurement of Ammonia Volatilization From Putting Greens Foliarly‐Fertilized by Urea

Schlossberg

McGraw

Hivner

et al. 2017

CLEAN Soil Air Water

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Foliar fertilization is an increasingly popular method of ensuring golf course putting green nitrogen (N) sufficiency in season. The low cost, high N‐content, and favorable handling characteristics of urea (46‐0‐0) make it a common N‐source in foliar treatments of horticultural crops. While numerous investigations confirm incomplete recovery of foliarly‐applied urea‐N by turfgrass, few field assessments of NH3 volatilization from greens have been conducted. Meanwhile, NH3 emissions reduce air quality and contribute to non‐point nutrient loading of water resources. The research objectives were to (i) develop a method for field‐implementation of closed dynamic/flux chambers to measure NH3 volatilization from 0 to 24 h following foliar application of urea‐N to putting greens; and (ii) infer the significance of flux chamber NH3‐N volatilization measures relative to levels arising from simultaneous static‐chamber measures. Creeping bentgrass (Agrostis stolonifera L. “Penn G‐2”) putting greens were foliarly treated by 20–44 kg urea‐N ha−1 from 2013 to 2015, and NH3 volatilization measured using H3BO3 trap‐equipped flux and/or static chamber systems. Flux chamber measures of NH3 volatilization accounted for 7.1% of the urea‐N fertilizer applied 24 h previous. Simultaneous static chamber measures of NH3 volatilization were an order of magnitude less. A replicated flux chamber trapping efficiency trial showed 63% mean NH3 recovery. Thus under the duration and conditions described, 7.1–11.2% of foliar urea‐N applications can be expected to volatilize from putting greens. Regarding closed chamber system measurement of NH3 volatilization from small field plots, the described flux chambers afford applied scientists a more precise and efficient method than static chambers.

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Response of turfgrass to urea-based fertilizers formulated to reduce ammonia volatilization and nitrate conversion

Cited by 24 publications

References 53 publications

A new urease-inhibiting formulation decreases ammonia volatilization and improves maize nitrogen utilization in North China Plain

A new urease-inhibiting formulation decreases ammonia volatilization and improves maize nitrogen utilization in North China Plain

Cuban zeolite as ammonium carrier in urea-based fertilizer pellets: Photoacoustic-based sensor for monitoring N-ammonia losses by volatilization in aqueous solutions

Method for Flux‐Chamber Measurement of Ammonia Volatilization From Putting Greens Foliarly‐Fertilized by Urea

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