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Publication Date

1977

Description

The formation of biomass was investigated in the period from 1971 to 1975 on a productive pasture newly sown up and on an intensively fertilized long-established pasture grazed five times during the growing season. The following layers were taken into consideration: in the above-ground biomass - the stubble (0-5 cm) and the productive crop (above 5 cm); in the underground biomass - the sod (0-5 cm) and the root biomass (5-35 cm). The structure and weight of the biomass, and particularly that of the underground bio­mass, of the newly sown pasture as early as in the third year became similar to the respective values in the plant community of the long­established pasture. In the first years after sowing, the percentages of biomass were similar, while in the plant community of long standing the sod accounted for the highest share (more than 60 p.c.) in the overall biomass. The weight of biomass in particular layers, especially that of the productive crop, showed considerable variations during the growing season, depending on climatic conditions and agricultural use.

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Formation of the Biomass of Long Established Meadow Plants After Sowing

The formation of biomass was investigated in the period from 1971 to 1975 on a productive pasture newly sown up and on an intensively fertilized long-established pasture grazed five times during the growing season. The following layers were taken into consideration: in the above-ground biomass - the stubble (0-5 cm) and the productive crop (above 5 cm); in the underground biomass - the sod (0-5 cm) and the root biomass (5-35 cm). The structure and weight of the biomass, and particularly that of the underground bio­mass, of the newly sown pasture as early as in the third year became similar to the respective values in the plant community of the long­established pasture. In the first years after sowing, the percentages of biomass were similar, while in the plant community of long standing the sod accounted for the highest share (more than 60 p.c.) in the overall biomass. The weight of biomass in particular layers, especially that of the productive crop, showed considerable variations during the growing season, depending on climatic conditions and agricultural use.