000			03089nab|a22003377a|4500
001			68923
003			MX-TxCIM
005			20250620174817.0
008			25060622024||||ne ||p|op||||00||0|eng|dd
022			_a0929-1393
022			_a1873-0272 (Online)
024	8		_ahttps://doi.org/10.1016/j.apsoil.2023.105254
040			_aMX-TxCIM
041			_aeng
100	0		_aChe-Jen Hsiao _939210
245	1	0	_aEfficacy of grape seed procyanidins for inhibiting denitrification varies by source, soil texture, and cropping history
260			_aNetherlands : _bElsevier B.V., _c2024.
500			_aPeer review
500			_aOpen Access
520			_aPlant-derived denitrification inhibitors, such as procyanidins derived from grape seed extract (GSE), hold potential in mitigating nitrous oxide (N2O) emissions, a potent greenhouse gas and stratospheric ozone depleter. A deeper understanding of the effects of GSE – considering aspects like rate, source, application timing, storage, and interactions with soil properties and cropping histories – on denitrification inhibition remains elusive. We conducted a series of laboratory microcosm experiments to assess these effects using denitrification enzyme activity (DEA) and measurements of N2O and carbon dioxide (CO2) production rates under both anaerobic and aerobic conditions, soil inorganic nitrogen (N), and other major soil properties. Our results revealed that one commercial GSE brand (USP GSE) inhibited DEA, while another source was ineffective. Two non-procyanidin compounds in commercial GSE mixtures, tartaric acid and gallic acid, actually enhanced DEA. Inhibition efficiency of the USP GSE varied significantly across soils with differing crop histories and physical properties, exhibiting a positive dose-response in three out of the five soils examined. Greater efficiency was observed in sandy soils compared to silt loam soils and in soils with a history of continuous corn production as opposed to soybean. The GSE application timing relative to urea addition and a one-week room temperature storage had minor effects on denitrification inhibition. In corn-cultivated soil, co-application of GSE and urea reduced cumulative N2O production by 27 % compared to soils treated with urea alone. The CO2 production and nitrate levels remained largely unaffected by GSE application. These findings supported the potential of GSE as a soil amendment to reduce N2O emissions in corn-cultivated soils. However, challenges including purity of procyanidins, cost-effectiveness, and inconsistent performance under various systems warrant consideration for broader field applications.
546			_aText in English
650		7	_aGrape seeds _2AGROVOC _939211
650		7	_aProcyanidins _2AGROVOC _939212
650		7	_aDenitrification _2AGROVOC _915862
700	1		_aFrie, A. _939213
700	1		_aMitchell, Scott _939214
700	1		_aVenterea, R. _916747
700	1		_aGriffis, T. _939215
773	0		_tApplied Soil Ecology _gv. 195, art. 105254 _dNetherlands : Elsevier B.V., 2024. _z0929-1393 _w56850
942			_cJA _n0 _2ddc
999			_c68923 _d68915