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Expected impact of phosphorus fertilization on the eutrophication of terrestrial environment

100%

Sapek A.

Acta Agrophysica

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2001

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tom 52

The aim of this papers is to discuss the expected effect of increasing phosphorus accumulation in cultivated soils. The global consumption of phosphorus fertilisers since 1954 exceeded 1 billion tons of P2O5, and about a half of this amount was used in European countries. More than 95% of mined phosphate rocks are provided to food production. That resulted that the total phosphorus content in agricultural used soils was doubled or tripled in European countries up to now. A further increase of phosphorus accumulation in the- cultivated soils would conduct to eutro- phication of water and terrestrial ecosystems. The euthrophication of surface water is rather good known phenomena, but the euthrophication of terrestrial ecosystem need broader identification. Main sources of phosphorus in environment is food production and consumption. In agriculture, a renewed attentions is required to ensure that phosphorus in modern farming systems is managed in a manner which is sustainable from the point of view of both agriculture and environment. The mitigation of eutrophication originated from phosphorus accumulation in agricultural soils could be achieved only on scientific basis followed with country and regional abatement programs.

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Professor Saturnin Zawadzki [1923-2003]

72%

Uziak S.

Polish Journal of Soil Science

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2003

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tom 36

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nr 2

195-197

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Mineral nitrogen content in the 60-90 cm layer of grassland soils relative to other fodder crops, way of managing agricultural lands and farming intensity

58%

Watros A., Lipinska H., Lipinski W., Tkaczyk P., Krzyszczak J., Baranowski P.

Acta Agrophysica

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2018

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tom 25

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nr 3

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Study of the pH variability in permanent meadow soils resulting from nitrogen fertilization and after-effect of liming

58%

Sapek B.

Acta Agrophysica

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2000

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tom 35

Investigations on the acidification dynamics of grassland soil not limed (acidification) and renewed acidification after soil liming ( reacidification) related to ammonium nitrate (AN) and calcium nitrate (CN) fertilisation in three long-term grassland experiments (started in 1981) have been performed. The experiments were set up in randomised blocks in 4 repetitions in 1981, and were localised in the Mazowieckie voivodeship. The soils under the experiments differed in their physical and chemical properties. Lime (CaCO3) was used once directly on the sward, at the beginning of the experiments in doses related to hydrolytic acidity levels 1 Hh and 2 Hh. Two doses of nitrogen (N1 - 120, N2 - 240 kg/ha) in the AN form, and since spring 1992 in CN form were used. Phosphorus and potassium were applied at constant doses. The pHKCl level of each 5 cm soil layer down to 25 cm depth from cach fertilising treatment was measured. The recognition of specific dynamic of acidification and reaciditleation in the separate 5 cm layers, on the background of different soil properties, doses and forms of nitrogen fertilisers can be helpful in characterising the N transformation processes as well as nutrient consumption by the herbage, the roots mass of which is contained mostly in 0-15 cm upper soil layer.

Ograniczanie wyników

3 Acta Agrophysica

1 Polish Journal of Soil Science

1 Baranowski P.

1 Krzyszczak J.

1 Lipinska H.

1 Lipinski W.

1 Sapek A.

1 Sapek B.

1 Tkaczyk P.

1 Uziak S.

1 Watros A.

1 2018

1 2003

1 2001

1 2000

Expected impact of phosphorus fertilization on the eutrophication of terrestrial environment

Professor Saturnin Zawadzki [1923-2003]

Mineral nitrogen content in the 60-90 cm layer of grassland soils relative to other fodder crops, way of managing agricultural lands and farming intensity

Study of the pH variability in permanent meadow soils resulting from nitrogen fertilization and after-effect of liming