About: A simple statistical model for predicting herbage production from permanent grassland

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The considerable year-to-year and seasonal variation in grassland production is of major importance to dairy farmers in Europe, as production systems must allow for the risk of unfavourable weather conditions. A large portion of the variability is caused by weather and its interaction with soil conditions and grassland management. The present study takes advantage of the interactions between weather, soil conditions and grassland management to derive a reliable grassland statistical model (GRAM) for grasslands under various management regimes using polynomial regressions (GRAM-R) and neural networks (GRAM-N). The model performance was tested with a focus on predicting its capability during unusually dry or wet years using long-term experimental data from Austrian sites. The GRAM model was then coupled with the Met&Roll stochastic weather generator to provide estimates of harvestable herbage dry matter (DM) production early in the season. It was found that, with the GRAM-N or GRAM-R The considerable year-to-year and seasonal variation in grassland production is of major importance to dairy farmers in Europe, as production systems must allow for the risk of unfavourable weather conditions. A large portion of the variability is caused by weather and its interaction with soil conditions and grassland management. The present study takes advantage of the interactions between weather, soil conditions and grassland management to derive a reliable grassland statistical model (GRAM) for grasslands under various management regimes using polynomial regressions (GRAM-R) and neural networks (GRAM-N). The model performance was tested with a focus on predicting its capability during unusually dry or wet years using long-term experimental data from Austrian sites. The GRAM model was then coupled with the Met&Roll stochastic weather generator to provide estimates of harvestable herbage dry matter (DM) production early in the season. It was found that, with the GRAM-N or GRAM-R (en) Podrobný popis viz. anglický abstrakt. (cs)
Title	A simple statistical model for predicting herbage production from permanent grassland Jednoduchý statistický model pro prognózu výnosu na trvalých travních porostech (cs) A simple statistical model for predicting herbage production from permanent grassland (en)
skos:prefLabel	A simple statistical model for predicting herbage production from permanent grassland Jednoduchý statistický model pro prognózu výnosu na trvalých travních porostech (cs) A simple statistical model for predicting herbage production from permanent grassland (en)
skos:notation	RIV/62156489:43210/06:00102904!RIV07-GA0-43210___
http://linked.open.../vavai/riv/strany	253;271
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA205/05/2265)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Trnka, Miroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Agronomická fakulta
http://linked.open...dnocenehoVysledku	463829
http://linked.open...ai/riv/idVysledku	RIV/62156489:43210/06:00102904
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Austria; climate change; grassland (en)
http://linked.open.../riv/klicoveSlovo	climate change Austria grassland
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[2DA437608AFA]
http://linked.open...i/riv/nazevZdroje	Grass and Forage Science.
http://linked.open...in/vavai/riv/obor	GC
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Calibration of weather generator for sites without or with incomplete meteorological observations
http://linked.open...UplatneniVysledku	2006
http://linked.open...v/svazekPeriodika	61
http://linked.open...iv/tvurceVysledku	Eitzinger, Josef Schaumberger, Andreas Trnka, Miroslav Buchgraber, Karl Gruszczynski, Gregorz Resch, K.
issn	1365-2494
number of pages	19 (xsd:int)
http://localhost/t...ganizacniJednotka	43210

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