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Titolo:
Integrating soil phosphorus testing into environmentally based agricultural management practices
Autore:
Sims, JT; Edwards, AC; Schoumans, OF; Simard, RR;
Indirizzi:
Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19717 USA Univ Delaware Newark DE USA 19717 Plant & Soil Sci, Newark, DE 19717 USA Macaulay Land Use Res Inst, Aberdeen AB9 2QJ, Scotland Macaulay Land Use Res Inst Aberdeen Scotland AB9 2QJ n AB9 2QJ, Scotland SC DLO, DLO Winand Staring Ctr Integrated Land Soil & Wat, Wageningen, Netherlands SC DLO Wageningen Netherlands Land Soil & Wat, Wageningen, Netherlands Agr & Agri Food Canada, Soils & Crops Res Ctr, St Foy, PQ, Canada Agr & Agri Food Canada St Foy PQ Canada rops Res Ctr, St Foy, PQ, Canada
Titolo Testata:
JOURNAL OF ENVIRONMENTAL QUALITY
fascicolo: 1, volume: 29, anno: 2000,
pagine: 60 - 71
SICI:
0047-2425(200001/02)29:1<60:ISPTIE>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
AVAILABLE PHOSPHORUS; WATER-QUALITY; PHOSPHATE; SLUDGE; RUNOFF; PERSPECTIVE; SORPTION; DRAINAGE; BELGIUM; LOSSES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
62
Recensione:
Indirizzi per estratti:
Indirizzo: Sims, JT Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19717 USA Univ Delaware Newark DE USA 19717 Soil Sci, Newark, DE 19717 USA
Citazione:
J.T. Sims et al., "Integrating soil phosphorus testing into environmentally based agricultural management practices", J ENVIR Q, 29(1), 2000, pp. 60-71

Abstract

Soil testing has been an accepted agricultural management practice for decades. interpretations and fertility recommendations based on soil analyses and the information obtained with soil samples on cropping systems, tillagepractices, soil types, manure use, and other parameters have contributed to the increased efficiency of agricultural production. Recently, however, analyses of long-term trends in soil test P values have shown that soil P inmany areas of the world is now excessive, relative to crop P requirements. The role of P in the eutrophication of surface waters and emerging concerns about the human health impacts of toxic algal/dinoflagellate blooms have heightened public awareness of nonpoint source pollution by agricultural P. The greatest concerns are with animal-based agriculture, where farm and watershed-scale P surpluses and over-application of P to soils are common. The need For nutrient-management plans based on N and P is now an issue of intense debate in the U.S. and Canada. This paper addresses three issues: Should the applications of organic wastes and fertilizers be based on soil P and, if so, what is the most appropriate testing method to assess environmental risk? Now can our knowledge of soil P chemistry be integrated with the expertise of hydrologists, agronomists, aquatic ecologists, and others to assess the risks that P in agricultural soils poses to surface waters? And, finally, how can we use soil P testing to evaluate new best management practices (BMPs) now being developed to reduce P transport from soil to water?

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 16:44:38