Plant Soil Environ., 2003, 49(1):18-23 | DOI: 10.17221/4084-PSE

Influence of different systems of grazing, type of swards and fertilizing on underground phytomass of pastures

S. Hejduk, F. Hrabě
Mendel University of Agriculture and Forestry in Brno, Czech Republic

Problems concerning total dry weight and distribution of underground phytomass were studied in a pasture trial at Rapotin near Šumperk, the CzechRepublicin the period 1995-1999. The total weight of dry underground pasture phytomass (DUP) was 976 g/m2 (5-year average) in a soil layer of 0-200 mm (both live and dead roots). The DUP was significantly increased by mineral fertilizers (90 kg N/ha, 30 kg P/ha a 90 kg K/ha). The weight of DUP was not significantly influenced by a grazing system, renewal or resowing of the original grassland. In unfertilized plots, DUP weight amounted to 989 g/m2, i.e. 92 g/m2 (8.6%) less than in fertilized plots in the period 1996-1999. In the same period, under the grassland exploited by rotational grazing 1142 and under continuous grazing 1082 g/m2 DUP were determined, i.e. by 60 g/m2 (5.5%) less. The highest DUP weight in the period 1996-1999 was found in autumn 1997 (1222 g/m2) immediately before achieving the maximum forage yield in May 1998. In a layer of 0-20 mm, 54.6% of the total DUP was found. In this surface layer, significant increase in the DUP weight was found in fertilized plots. In 1999, some 88.5 and 90.2% of DUP were concentrated in unfertilized (903 g/m2) and fertilized (952 g/m2) plots, respectively in a layer of 0-100 mm.

Keywords: underground phytomass; pasture; fertilizing; grazing systems; roots distribution

Published: January 31, 2003  Show citation

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Hejduk S, Hrabě F. Influence of different systems of grazing, type of swards and fertilizing on underground phytomass of pastures. Plant Soil Environ. 2003;49(1):18-23. doi: 10.17221/4084-PSE.
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    References

    1. Chloupek O. (1996): Zemědělský výzkum. Academia, Praha.
    2. Fiala K. (1993): Underground biomass in meadow stands. In: Rychnovská M. (ed.): Structure and functioning of seminatural meadows. Academia, Praha.
    3. Fiala K. (1996): Root biomass of meadow stands and difficulties of its interpretation. Příroda, 4, Floodplain meadows - ecological functions, contemporary state and possibilities for restoration. Ag. Natur. Conserv. Landsc. Protec. CR, Praha: 43-45.
    4. Fiala K., Tůma I., Holub P. (1999): Effect of wet bulk depositions and higher input of nitrogen on losses of nutrients from forest soils on immission barrens. Accumulation and losses of organic matter and nutrients in grass ecosystems on deforested sites. Acad. Sci. CR, Průhonice: 21-29.
    5. Fiala K., Tůma I., Holub P., Tesařová M., Jandák J., Pávková A. (2001): Importance of grass cover in reduction of negative processes in soil affected by air pollution. Rostl. Výr., 47: 377-382.
    6. Fiala K., Zelená V. (1994): Response of underground plant biomass of meadow communities to cutting impact. Rostl. Výr., 40: 1057-1065.
    7. Greenwood K.L., Hutchinson K.J. (1998): Root characteristics of temperature pasture in New South Wales after grazing at three stocking rates for 30 years. Grass Forage Sci., 53: 120-128. Go to original source...
    8. Hejduk S. (2000a): Species changeability of the botanical composition of pasture swards influenced by fertilising and renovation. Acta Univ. Agric. Silvic. Mendel. Brun., 48: 85-92.
    9. Hejduk S. (2000b): Vliv extenzivního obhospodařování pastevních porostů ve vztahu k porotovým a hydropedologickým parametrům. [Doktorská dizertace.] MZLU, Brno.
    10. Rieder J.B. (1983): Dauergrünland. BLV Verlagsgesellschaft, München.
    11. Rychnovská M. (1993): Structure and functioning of seminatural meadows. Academia, Praha.
    12. Rychnovská M., Balátová E., Úlehlová B., Pelikán J. (1985): Ekologie lučních porostů. Academia, Praha.
    13. Rychnovská M. et al. (1987): Metody studia travních ekosystémů. Academia, Praha.
    14. Sobotik M. (1996): Root conditions of the vegetation cover and their influence on soil condition. Proc. 16th Meet. EGF Grassland and land use systems, Grado: 839-843.
    15. Straka J. (1999): Vývoj travních porostů ve vztahu k ekologickým charakteristikám. [Doktorská dizertace.] MZLU, Brno.
    16. Straka J., Hrabě F. (2000): Vliv stupňovaného N hnojení na intervalové přírůstky kořenové fytomasy dočasného lučního společenstva. Acta Univ. Agric. Silvic. Mendel. Brun., 48: 35-40.
    17. Straková M., Hrabě F. (2001): Weight and stratification of root biomass in selected turf cultivars. Rostl. Výr., 47: 451-455.
    18. Úlehlová B. (1993): Fertility of grassland soils. In: Rychnovská M. (ed.): Structure and functioning of seminatural meadows. Academia, Praha.
    19. Velich J. (1986): Studium vývoje produkční schopnosti trvalých lučních porostů a drnového procesu při dlouhodobém hnojení a jeho optimalizaci. VŠZ, Videopress MON, Praha.

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