Mass balance analyses of nutrients on California dairies to evaluate data quality for regulatory review

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• 作者：Christine M.F. Miller ; Patricia L. Price ; Deanne Meyer ; ^{dmeyer@ucdavis.edu}
• 关键词：WDR ; waste discharge requirements ; RB5 ; California Regional Water Quality Control Board ; Central Valley Region (5) ; N ; Nitrogen ; P ; Phosphorus ; K ; Potassium ; N-Ratio ; ratio of N-applied to N-removed ; PWW ; process waste water ; SM ; solid manure ; CVDRMP ; Central Valley Dairy Representative Monitoring Program ; ASABE ; American Society of Agricultural and Biological Engineers ; TDS ; Total Dissolved Solids
• 刊名：Science of The Total Environment
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：579
• 期：Complete
• 页码：37-46
• 全文大小：944 K
• 卷排序：579

文摘

Groundwater regulations require precise nitrogen management on California dairies. Quality of reported nitrogen management data was evaluated through mass balance. Nitrogen excreted by cattle is unaccounted for in nitrogen management reports. Many reported nitrogen application rates are insufficient to maintain crop yields. Reducing error in manure nitrogen measurements should improve data quality.