Phosphorus (P) is an essential nutrient for crops and is applied to agricultural soil to bring or
keep the soil at a certain target soil P status in view of an optimal crop yield. Environmental …

Inputs of P are essential for profitable crop and livestock production. However, its export in
watershed runoff can accelerate the eutrophication of receiving fresh waters. The …

The water quality response to implementation of conservation measures across watersheds
has been slower and smaller than expected. This has led many to question the efficacy of …

Agriculture and urban activities are major sources of phosphorus and nitrogen to aquatic
ecosystems. Atmospheric deposition further contributes as a source of N. These nonpoint …

In the mid-1800s, the agricultural chemist Justus von Liebig demonstrated strong positive
relationships between soil nutrient supplies and the growth yields of terrestrial plants, and it …

Put Theory into Practice Scarcity of natural resources, higher costs, higher demand, and
concerns about environmental pollution-under these circumstances, improving food supply …

Interest in evaluating soil quality has been stimulated by increasing awareness that soil is a
critically important component of the earth's biosphere. Defining indicators of soil quality is …

It has been more than ten years since the last edition of the bestselling Restoration and
Management of Lakes and Reservoirs. In that time, lake and reservoir management and …

Phosphorus in runoff from agricultural land is an important component of nonpoint‐source
pollution and can accelerate eutrophication of lakes and streams. Long‐term land …

The effects of soil bunds on runoff, losses of soil and nutrients, and crop yield are rarely
documented in the Central Highlands of Ethiopia. A field experiment was set up consisting of …