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[31], 'A': [32, 56], 'field': [33, 57], 'experiment': [34, 58], 'of': [35, 90, 134, 187, 211], 'urea': [36, 60, 107, 115, 151, 268], 'treated': [37, 65, 82, 114, 150, 204], 'with': [38, 66, 83, 137, 195, 205, 257, 266], 'efficiency': [39, 67, 133], 'enhancers': [40, 68], 'was': [41, 69, 116], 'conducted': [42], 'corn': [45, 74, 135, 220, 253], '(': [46], 'Zea': [47], 'mays': [48], 'L.)': [49], 'Tennessee,': [51], 'the': [52, 155, 167, 243], 'USA': [53], 'during': [54, 166], '2013–2015.': [55], 'ammonium': [62], 'nitrate': [63], '(UAN)': [64], 'carried': [70], 'out': [71], 'Tennessee': [76], '2014': [78], '2015.': [80], 'Urea': [81], 'N-(n-butyl)': [84], 'thiophosphoric': [85], 'triamide': [86], '(NBPT)': [87], 'at': [88], 'concentrations': [89], '20%': [91, 200], '(NBPT': [92, 96, 101], '1': [93, 142], '),': [94, 98], '26.7%': [95], '2': [97, 145], 'or': [99, 147, 208], '30%': [100], '3': [102, 149, 207], ')': [103], 'coated': [106], '(PCU)': [108], 'effective': [110, 259], 'maleic-itaconic': [112], 'copolymer': [113], 'ineffective': [117], 'reducing': [119], 'ammonia': [120, 157, 190], 'volatilization': [121, 158, 191], 'improving': [124], 'nutrition,': [126], 'grain': [127, 175], 'yield,': [128], 'use': [132, 248], 'compared': [136], 'untreated': [138, 223], 'urea.': [139], 'Specifically,': [140], 'NBPT': [141, 144, 148, 188, 196, 206], ',': [143, 146], 'PCU': [153], 'reduced': [154], 'total': [156], 'by': [160, 177], '29.1–78.8%,': [161], '35.4–81.9%,': [162], '77.3–87.4%,': [163], '59.1–83.3%': [165], '20': [168], 'days': [169], 'after': [170], 'applications,': [172], 'increased': [174, 198], 'yield': [176, 221], '15.6–31.4%,': [178], '12.9–34.8%,': [179], '18.7–19.9%,': [180], '14.6–41.1%,': [182], 'respectively.': [183], 'The': [184], 'inhibitory': [185], 'effect': [186], 'did': [192], 'not': [193], 'improve': [194], 'concentration': [197], 'from': [199], 'to': [201], '30%.': [202], 'UAN': [203, 224], 'a': [209], 'combination': [210], 'resulted': [216], '16.5–16.6%': [218], 'higher': [219], 'than': [222], 'only': [225], 'when': [226, 233], 'they': [227], 'surface': [229, 237], 'applied.': [230], 'In': [231], 'conclusion,': [232], 'urea-containing': [234], 'fertilizers': [235], 'are': [236], 'applied': [238], 'without': [239], 'any': [240], 'incorporation': [241], 'into': [242], 'soil': [244], 'under': [245], 'no-tillage,': [246], 'efficiencies': [249], 'performances': [251], 'can': [254], 'be': [255], 'enhanced': [256], 'an': [258], 'inhibitor': [261], 'areas': [263], 'years': [265], 'noticeable': [267], 'losses.': [270]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2940501831', 'counts_by_year': [{'year': 2024, 'cited_by_count': 10}, {'year': 2023, 'cited_by_count': 7}, {'year': 2022, 'cited_by_count': 7}, {'year': 2021, 'cited_by_count': 10}, {'year': 2020, 'cited_by_count': 8}, {'year': 2019, 'cited_by_count': 1}], 'updated_date': '2025-01-09T08:52:25.250249', 'created_date': '2019-05-03'}