Publication Date

1989

Description

Permanent meadows and pastures occurring in the Mazurian Lake District (North-eastern part of Poland) constitute 32 % of arable lands. Most meadows are situated on peat soils (Olkowski, 1972). Continuous and successive changes take place in such populations. The moment some species decline, the number of others increases which are better adjusted to site conditions or human activity such as fertilization and the way of land use. These changes occur with different intensity depen­ding on fertilizer doses, land use and site conditions which have not been well recognized with regard to permanent meadows (Olkowski and Olesinski, 1976, Eilart, 1986). Determination of trends in changes of botanical composition of meadow sward caused by differential mineral fertilization was the main goal of undertaken studies.

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Changes in Vegetation of Various Meadows Under Differential Mineral Fertilization

Permanent meadows and pastures occurring in the Mazurian Lake District (North-eastern part of Poland) constitute 32 % of arable lands. Most meadows are situated on peat soils (Olkowski, 1972). Continuous and successive changes take place in such populations. The moment some species decline, the number of others increases which are better adjusted to site conditions or human activity such as fertilization and the way of land use. These changes occur with different intensity depen­ding on fertilizer doses, land use and site conditions which have not been well recognized with regard to permanent meadows (Olkowski and Olesinski, 1976, Eilart, 1986). Determination of trends in changes of botanical composition of meadow sward caused by differential mineral fertilization was the main goal of undertaken studies.