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Titolo:
Phosphorus content in soil, uptake by plants and balance in three Europeanlong-term field experiments
Autore:
Blake, L; Mercik, S; Koerschens, M; Moskal, S; Poulton, PR; Goulding, KWT; Weigel, A; Powlson, DS;
Indirizzi:
IACR Rothamsted, Dept Soil Sci, Harpenden AL5 2JQ, Herts, England IACR Rothamsted Harpenden Herts England AL5 2JQ n AL5 2JQ, Herts, England Agr Univ Warsaw, Dept Agr Chem, PL-02766 Warsaw, Poland Agr Univ Warsaw Warsaw Poland PL-02766 Agr Chem, PL-02766 Warsaw, Poland Environm Res Ctr, Dept Soil Sci, Bad Lauchstaedt, Germany Environm Res Ctr Bad Lauchstaedt Germany Sci, Bad Lauchstaedt, Germany
Titolo Testata:
NUTRIENT CYCLING IN AGROECOSYSTEMS
fascicolo: 3, volume: 56, anno: 2000,
pagine: 263 - 275
SICI:
1385-1314(200003)56:3<263:PCISUB>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
BROADBALK;
Keywords:
fertiliser; long-term experiments; nutrient uptake; phosphorus balance; phosphorus dynamics; soil phosphorus;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Goulding, KWT IACR Rothamsted, Dept Soil Sci, Harpenden AL5 2JQ, Herts, England IACR Rothamsted Harpenden Herts England AL5 2JQ ts, England
Citazione:
L. Blake et al., "Phosphorus content in soil, uptake by plants and balance in three Europeanlong-term field experiments", NUTR CYCL A, 56(3), 2000, pp. 263-275

Abstract

The fate of phosphorus (P) derived from mineral fertilisers and organic manures, and the effective P balance, have been assessed in three long-term field experiments at Rothamsted (UK), Bad Lauchstaedt (Germany) and Skierniewice (Poland). This paper discusses the plant availability, uptake and overall utilisation of P over the last 30 years, based on soil test P 'availability indices' and crop analyses determined by the standard methods used in each of the three countries. The data suggest that differences in soil typesignificantly influence the dynamics of P at the three locations, but mostsignificantly between a loess Chernozem at Bad Lauchstaedt with a high organic matter content and the soils at the other two locations which have a low organic matter content. The application of P either as inorganic fertiliser or organic manure had a considerable influence on the availablity, uptake, leaching or fixing of P, but the crop recovery rate of P from mineral fertiliser did not exceed 35% with the smallest recovery (average 18%) occurring in the soil with the highest clay content at Rothamsted. At Bad Lauchstaedt and Rothamsted the most efficient utilisation of P (averages of 47% and 37%, respectively) was from soils treated with farmyard manure (FYM), with the greater quantity of P either leached or fixed (8 and 25 kg ha(-1) y(-1), respectively) occurring in soils treated with superphosphate. At Skierniewice, however, the reverse was true. Overall, the most efficient crop utilisation from mineral P (30% average) was from the loamy sand at Skierniewice. P balances for the three locations show that quantitatively, for the same P input, the amount of P either leached from or fixed in the plough layer of Broadbalk field, Rothamsted, was 2-3 times greater than at Skierniewice and 3-6 times greater than at Bad Lauchstaedt. The results suggest that differences in the soil physico-chemical properties, climate, the availability of other major nutrients, and the form in which P is applied, all influence the effectiveness of P fertilisation and P balance. The investigation highlights the importance of maintaining long-term field experiments and archived soil and crop samples on a world-wide basis for understanding nutrient cycling and fertility dynamics.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 19:57:00