EnviroAtlas - Agricultural phosphorus balance for 2012 by 12-digit HUC for the Conterminous United States

This EnviroAtlas national map displays the mean phosphorus (P) balance between inorganic fertilizer and confined manure inputs and P crop removal on croplands in the...本EnviroAtlas国家级地图集展示了在……的农田中，无机肥料与集约化圈养畜禽粪便的磷输入量，以及作物磷素携出量之间的平均磷素平衡状况。