Now showing items 1-4 of 4
Direct exports of phosphorus from fertilizers applied to grazed pastures
(Crop Science Society of America with the American Society of Agronomy and the Soil Science Society of America, 2019-08-21)
Since its discovery in 1669, phosphorus (P) in the form of fertilizer has become an essential input for many agroecosystems. By introducing a concentrated P source, fertilizers increase short-term P export potential soon ...
Analysis of potentially mobile phosphorus in arable soils using solid state nuclear magnetic resonance
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2002)
In many intensive agroecosystems continued inputs of phosphorus (P) over many years can significantly increase soil P concentrations and the risk of P loss to surface waters. For this study we used solid-state ³¹P nuclear ...
Likely controls on dissolved reactive phosphorus concentrations in baseflow of an agricultural stream
Purpose: High baseflow phosphorus (P) concentrations increase the likelihood of periphyton blooms. Several physical and chemical factors can control baseflow P concentrations such as hydraulic exchange with groundwater, ...
Effects of lime and organic amendments derived from varied source materials on cadmium uptake by potato
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc., 2017-07)
Repeated applications of Cd-rich phosphate fertilizers have resulted in elevated concentrations of this toxic element in some New Zealand soils. Exceedance of the food safety standard for Cd (0.1 mg kg⁻¹ fresh weight) has ...