摘要：Simple and concise urban lawn nutrient management plans can be successfully implemented to combat eutrophication of lakes and streams. Soil test values from 540 lawns near Springfield, Missouri found that 51% of the samples tested above optimum levels for available phosphorus, especially where lawns were more than 20 years old. Urban nutrient management plans that contain the type, quantity, and timing of soil amendments assist homeowners in the selection of appropriate fertilizer choices from local retailers. Watershed stakeholders will adopt urban lawn nutrient management practices if Extension programs make a clear link between nutrient management and water quality.
关键词：urban ; nutrient management ; water quality ; lawns
