The effect of trophism level and exploitation intensity on the production characteristics of grassland community dominated by Festuca arundinacea Schreb

F. Hrabě and P. Knot
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F. Hrabě: Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic
P. Knot: Department of Animal Nutrition and Forage Production, Mendel University in Brno, Brno, Czech Republic

Plant, Soil and Environment, 2011, vol. 57, issue 4, 160-165

Abstract: In 2004-2009, a small-plot trial was conducted on permanent grassland dominated by Festuca arundinacea Schreb. on the mesohygrophytic site in order to evaluate effects of four levels of nutrition: F1 = without NPK fertilization, F2 = P30 + K60, F3 = N90 + P30 + K60, F4 = N180 + P30 + K60 kg/ha), four levels of cutting intensity (I1-4, I2-3, I3-2, early, I4-2, late cut) and their interactive influence, i.e. a total of 16 variants on the production of forage dry matter, production of crude protein (CD) and net energy of lactation (NEL) per hectare. The dominant influence of N-nutrition is documented by significant differences in forage dry matter (DM) production between the variants (with the exception of F1/F2) ranging from 4.41-4.80 to 8.44-9.83 t/ha. The effect of different exploitation level on the production is subdominant and no significant differences were found either in the production of forage DM(I1-6.41 - I2-6.59 - I3-6.97 - I4-7.50 t/ha) or in the production of nutrients. Management models to be recommended for the given type of sward with respect to the interactive influence, efficacy of forage production and quality are as follows: (a) three cuts/180 kg N + PK/ha with forage suitable for dairy cows; (b) two cuts/90 kg N + PK/ha with forage suitable for cattle breeds kept for meat.

Keywords: grassland; fertilization; cutting frequency; forage productivity; energy inputs and outputs (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:57:y:2011:i:4:id:359-2010-pse

DOI: 10.17221/359/2010-PSE

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