| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
a School of Environment & Agriculture, University of Western Sydney (Hawkesbury Campus), Locked Bag 1797, Penrith South, DC NSW 1797, Australia [formerly Summit-Quinphos (NZ) Ltd]
b Summit-Quinphos (NZ) Ltd, PO Box 24-020, Auckland, New Zealand
c National Institute of Water & Atmospheric Research Ltd, PO Box 11-115, Hamilton, New Zealand
* Corresponding author (bquin{at}sq.co.nz)
Received for publication September 26, 2003. Phosphorus (P) is one of the most important mineral nutrients in agricultural systems, and along with nitrogen (N), is generally the most limiting nutrient for plant production. Farming systems have intensified greatly over time, and in recent years it has become apparent that the concomitant increase in losses of N and P from agricultural land is having a serious detrimental effect on water quality and the environment. The last two decades have seen a marked increase in research into the issues surrounding diffuse losses of P to surface and ground water. This paper reviews this research, examining the issue of P forms in runoff, and highlighting the exceptions to some generally held assumptions about land use and P transport. In particular the review focuses on P losses associated with recent P fertilizer application, as opposed to organic manures, both on the amounts and the forms of P in runoff water. The effects of the physicochemical characteristics of different forms of P fertilizer are explored, particularly in relation to water solubility. Various means of mitigating the risk of loss of P are discussed. It is argued that the influence of recent fertilizer applications is an under-researched area, yet may offer the most readily applicable opportunity to mitigate P losses by land users. This review highlights and discusses some options that have recently become available that may make a significant contribution to the task of sustainable management of nutrient losses from agriculture.
Abbreviations: DAP, diammonium phosphate • DAPR, direct-application phosphate rock • DCP, dicalcium phosphate • DIP, dissolved inorganic phosphorus (usually equivalent to DRP) • DP, dissolved phosphorus (usually equivalent to TDP) • DRP, dissolved reactive phosphorus • PP, particulate phosphorus • SSP, single superphosphate • TDP, total dissolved phosphorus • TP, total phosphorus • TRP, total reactive phosphorus • TSP, triple superphosphate
This article has been cited by other articles:
|
|
 |
|
  L. H. Fisher and R. W. Healy Water Movement within the Unsaturated Zone in Four Agricultural Areas of the United States J. Environ. Qual., May 1, 2008; 37(3): 1051 - 1063. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. A.C. Manning Phosphate Minerals, Environmental Pollution and Sustainable Agriculture Elements, April 1, 2008; 4(2): 105 - 108. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. N. Sharpley, P. J. A. Kleinman, A. L. Heathwaite, W. J. Gburek, G. J. Folmar, and J. P. Schmidt Phosphorus Loss from an Agricultural Watershed as a Function of Storm Size J. Environ. Qual., March 1, 2008; 37(2): 362 - 368. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. J. Dougherty, P. J. Nicholls, P. J. Milham, E. J. Havilah, and R. A. Lawrie Phosphorus Fertilizer and Grazing Management Effects on Phosphorus in Runoff from Dairy Pastures J. Environ. Qual., March 1, 2008; 37(2): 417 - 428. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. E. Gentry, M. B. David, T. V. Royer, C. A. Mitchell, and K. M. Starks Phosphorus Transport Pathways to Streams in Tile-Drained Agricultural Watersheds J. Environ. Qual., January 25, 2007; 36(2): 408 - 415. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. I. Litaor, G. Eshel, O. Reichmann, and M. Shenker Hydrological Control of Phosphorus Mobility in Altered Wetland Soils Soil Sci. Soc. Am. J., September 20, 2006; 70(6): 1975 - 1982. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. B. Owens and M. J. Shipitalo Surface and Subsurface Phosphorus Losses from Fertilized Pasture Systems in Ohio J. Environ. Qual., May 31, 2006; 35(4): 1101 - 1109. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. A. Smalberger, U. Singh, S. H. Chien, J. Henao, and P. W. Wilkens Development and Validation of a Phosphate Rock Decision Support System Agron. J., April 11, 2006; 98(3): 471 - 483. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Crop Science | |||
| Vadose Zone Journal | Journal of Plant Registrations | ||||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal |
