Effect of fertilization on root growth in the wet submontane meadow

0395985 - ÚVGZ 2014 RIV CZ eng J - Článek v odborném periodiku
Holub, Petr - Tůma, I. - Fiala, Karel
Effect of fertilization on root growth in the wet submontane meadow.
Plant, Soil and Environment. Roč. 59, č. 8 (2013), s. 342-347. ISSN 1214-1178. E-ISSN 1805-9368
Grant CEP: GA ČR(CZ) GA526/06/0556; GA MZe QJ1220007; GA MŠMT(CZ) ED1.1.00/02.0073
Institucionální podpora: RVO:67179843 ; RVO:67985939
Klíčová slova: biomass partitioning * grassland * effect of nutrients * net primary productivity * precipitation
Kód oboru RIV: EH - Ekologie - společenstva; EF - Botanika (BU-J)
Impakt faktor: 1.113, rok: 2013

Root net primary productivity (RNPP) was assessed in the wet submontane meadow in the highland region of the Czech Republic. RNPP was studied from 1992 to 1995 with help of the in-growth core technique. The effect of different intensities of fertilization on root growth was covered. In comparison with unfertilized stands, the application of fertilizers (90 kg N/ha) resulted, mostly significantly, in greater root productivity (297 g/m(2)/year and 2.08 g/m(2)/day, on average). This represented an increase by 72% and 71%, respectively. Variability in the fraction of RNPP to total net primary productivity was examined. Results indicate that this fraction varied from 0.18 to 0.25 across the compared treatments and decreased with increasing fertilization. Data show how different roles can grasslands play in accumulation of plant matter due to different levels of fertilization.
Trvalý link: http://hdl.handle.net/11104/0223866