Alternatives to regular urea for abating N losses in lettuce production under sub-tropical climate

Cantú, Rafael Ricardo; Aita, Celso; Doneda, Alexandre; Giacomini, Diego Antonio; Dessbesell, Alexandre; Arenhardt, Marlon; Bastiani, Géssica Gaboardi de; Pujol, Stefen Barbosa; Rochette, Philippe; Chantigny, Martin H.; Giacomini, Sandro José

doi:10.1007/s00374-017-1202-4

Cited by 14 publications

(11 citation statements)

References 60 publications

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“…The vegetative growth parameters of greenhouse lettuce were assessed for FH, PL, FM, and MM treatments in comparison to urea, the most common commercial N fertilizer (Cantú et al 2017). Leaf numbers were accompanied during the cultivation period (60 days) and, as early as the 18th day, lettuce fertilized with FH displayed increased numbers in comparison to the other treatments (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Organic fertilizers are recognized as alternatives to synthetic sources, also potentially contributing to increased soil quality from both agricultural and environmental perspectives. Animal manures, and composts obtained thereof, releasing N to soil through mineralization, are among the organic materials usually utilized as fertilizers (Sorathiya et al 2014;Cantú et al 2017). Several other organic wastes have been investigated as fertilizers and soil amendments, also considering that such practices represent potential approaches for waste management and recycling (Gaskell and Smith 2007;Alvarenga et al 2015).…”

Section: Introductionmentioning

confidence: 99%

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Feather hydrolysate as a promising nitrogen-rich fertilizer for greenhouse lettuce cultivation

Sobucki

Ramos

Gubiani

et al. 2019

Int J Recycl Org Waste Agricult

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Purpose Poultry agro-industry generates huge amounts of solid wastes, such as poultry litter (PL) and feathers. Feathers, possessing a substantial amount of organic nitrogen, are mainly converted into feather meal (FM) through the hydrothermal process; however, microbial conversion into feather hydrolysates (FH) is increasingly being focused on. Since waste management strategies include the use of organic wastes as soil fertilizer, PL, FM, and FH were evaluated as fertilizers for lettuce in comparison to urea. Methods Lettuce seedlings were transplanted to soil pots containing FH, obtained through feathers' bioconversion by Bacillus sp. CL18, FM, PL, urea, and unfertilized controls. Partial chemical characterization of FH, FP, and PL was performed. Fertilization treatments were applied to reach 180 kg N/ha. Growth, dry biomass, and chlorophyll contents of lettuce were evaluated to indicate fertilizer performance. Results After 60 days of greenhouse lettuce cultivation, leaves per plant were superior after FH treatment. Lettuce fertilized with urea and FH presented higher and similar foliar areas. FH treatment resulted in increased dry weight (DW) of leaves, which then decreased in the order urea > FM > MM ~ controls > PL. Dry weight of leaves and roots was 33% and 64% higher with FH than with urea. Leaf total chlorophyll content was higher with FH, but similar to urea and FM. Lettuce growth was negatively affected by PL when compared to controls. Conclusion FH, obtained from microbial processing of abundant and inexpensive feathers, could be a candidate N-rich fertilizer for lettuce cultivation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Feather hydrolysate as a promising nitrogen-rich fertilizer for greenhouse lettuce cultivation

Sobucki

Ramos

Gubiani

et al. 2019

Int J Recycl Org Waste Agricult

View full text Add to dashboard Cite

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“…Meta-analyses indicated NBPT amendment of urea supports a near 50% relative reduction in NH 3 loss following broadcast application of urea to agricultural and horticultural production systems (Abalos et al, 2014;Pan et al, 2016;Silva et al, 2017). More recent ield evaluations assessing NH 3 volatilization further conirmed the beneits of complementing 100 to 175 kg ha -1 urea-N applications with 0.2% NBPT (Cantú et al, 2017;Del Moro et al, 2017;Engel et al, 2017;Martins et al, 2017;Mira et al, 2017).…”

Section: Core Ideasmentioning

confidence: 97%

Ammonia Volatilization from Putting Greens Foliarly Fertilized by Conventional or Stabilized Urea

Schlossberg

McGraw

Sebring

2018

Agricultural & Env Letters

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Low cost, high N content, and favorable handling characteristics of urea fertilizer (46-0-0) make its use common in turfgrass management. While many investigations conirm incomplete recovery of foliarly applied urea-N by turfgrass putting greens, the eicacy of urease-inhibiting additives, calcium-maleicitaconic polymer or N-(n-butyl) thiophosphoric triamide (NBPT), in preventing NH 3 volatilization is currently undocumented. Furthermore, NH 3 emissions reduce air and water quality. From 2014 to 2015, NH 3 volatilization was measured 0 to 24 h following foliar application of conventional or stabilized urea fertilizers to 'Penn G2' creeping bentgrass (Agrostis stolonifera L.) putting greens at a 20 kg ha-1 N rate in four separate trials. Using a 63% trapping-eiciency lux chamber system under the duration and conditions described, 11.1% of conventional or calcium-maleic-itaconic polymer-amended urea-N was lost as NH 3. Alternatively, combined amendment by NBPT and dicyandiamide (DCD) prevented 1.3 to 1.4 kg ha-1 NH 3-N emissions, reducing volatilization loss to only 3.8 to 4.6% of the foliarly applied urea-N.

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confidence: 98%

“…Subsequent meta-analyses indicate NBPT amendment of urea supports a near 50% relative-reduction in NH 3 loss following broadcast application of urea to agricultural and horticultural production systems [33][34][35]. More recent evaluations assessing NH 3 volatilization further confirm benefits of complimenting 100 to 175 kg ha −1 urea-N applications with 0.2% NBPT [36][37][38][39][40][41][42].Several laboratory or greenhouse studies have been conducted to evaluate efficacy of NBPT amendment of urea granules applied to turfgrass. One to five weeks following 48 to 50 kg ha −1 urea-N granular applications, N recovery in ryegrass or creeping bentgrass (Agrostis stolonifera L.) clippings receiving NBPT-amended treatments exceeded levels observed in urea-fertilized counterparts [22,43].…”

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confidence: 99%

Nitrogen Recovery and Loss from Kentucky Bluegrass Fertilized by Conventional or Enhanced-Efficiency Urea Granules

et al. 2018

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Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, field evaluations of NH 3 volatilization mitigation by coatings or bioinhibitor efficiency enhancements are limited. Meanwhile, NH 3 emissions reduce air quality and contribute to nutrient loading of water resources. Our objectives were to quantify 3-and 6-d ammonia emission and 9-week turfgrass recovery of unincorporated granular fertilizer application to turfgrass. In 2014 and 2015, commercial urea-N fertilizers were broadcast over a mature Kentucky bluegrass (Poa pratensis L. 'Midnight') lawn at 43 kg ha −1 . Treatments included conventional urea and three enhanced-efficiency fertilizers; a blended fertilizer with 25% of its urea-N supplanted by polymer-and polymer-/sulfur-coated prills, or two stabilized urea fertilizers both amended by N-(n-butyl) thiophosphoric triamide (NBPT) and dicyandiamide (DCD) inhibitors. Using a 51% 'trapping-efficiency' flux chamber system under the field conditions described, 23.1 or 33.5% of the conventional urea-N was lost as NH 3 over the respective 3-or 6-d period following application. Alternatively, dual amendment by NBPT and DCD resulted in approximately 10.3 or 19.6% NH 3 -N loss over the respective 3-or 6-d periods, and greater fertilizer-N recovery by the turfgrass over the 9-week experiments. concentration gradient [18]. Over a 48-hour period following a foliar urea-N application of 50 kg ha -1 , assimilation by perennial ryegrass (Lolium perenne L.) was observed to exceed 17 kg ha -1 [19].Alternatively, urea is hydrolyzed into ammonia and carbon dioxide by urease [20], an enzyme ubiquitous to soil, thatch, and turfgrass leaf and shoot surfaces [21]. The position of urea at hydrolysis significantly influences the fate of its products [10]. Prompt incorporation of granular urea into soil, either mechanically [22][23][24] or via precipitation/irrigation-facilitated dissolution and infiltration [13,[25][26][27], has been shown to reduce subsequent ammonia volatilization rate. Accordingly, best management practice (BMP) includes prompt but judicious 'watering-in' of urea fertilizer applications to turfgrass [9,28,29].Yet given the perennial nature of turfgrass, limited availability and/or opportunity often preclude(s) mechanical incorporation and/or irrigation/rainfall concomitance when scheduling granular urea-N fertilization events. To that end, N-(n-butyl) thiophosphoric triamide (NBPT, C 4 H 14 N 3 PS) is one of a few compounds so dependably inhibitive of biological N transformation that it has been commercially adopted [30]. Under aerobic conditions, this soluble alkane decomposes to N-(n-butyl) phosphorotriamide [31] and inhibits urease activity by forming a tridentate bond that binds its active site [32]. Subsequent meta-analyses indicate NBPT amendment of urea supports a near 50% relative-reduction in NH 3 loss following broadcast application of urea to agricultural and horticultural production systems...

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Alternatives to regular urea for abating N losses in lettuce production under sub-tropical climate

Cited by 14 publications

References 60 publications

Feather hydrolysate as a promising nitrogen-rich fertilizer for greenhouse lettuce cultivation

Feather hydrolysate as a promising nitrogen-rich fertilizer for greenhouse lettuce cultivation

Ammonia Volatilization from Putting Greens Foliarly Fertilized by Conventional or Stabilized Urea

Nitrogen Recovery and Loss from Kentucky Bluegrass Fertilized by Conventional or Enhanced-Efficiency Urea Granules

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