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Statements

Subject Item
n2:RIV%2F62334832%3A_____%2F11%3A2R002500%21RIV12-MZE-62334832
rdf:type
skos:Concept n8:Vysledek
dcterms:description
The seeds necessary for the establishment of species rich grassland can be obtained through direct harvesting in seed source semi-natural vegetations. To check this possibility in the case of the Arrhenatherion grasslands, three experimental trials were performed of this type of vegetation in the Czech Republic, Italy and Poland. At the first re-growth 2009, harvesting was carried out with the main techniques available, harvesting as green hay, as dry hay (hay-making), threshing and seed stripping. The efficiency of the several techniques was evaluated as concerns both the no. of seeds and the no. of species harvested. GH seems to be the most efficient technique, as it harvests nearly all seeds present, while OST harvests 22-35 % of the standing seed yield. Both DH and SSp showed efficiency higher than OST and lower than GH, while SSh showed a low efficiency. 60-70 % of the meadow species can be harvested as seed with one intervention at the end of the first re-growth. No harvesting of several species is mainly due to many species not being present as seed at the harvesting time and only to a small amount to the inefficiency of harvesting itself. The seeds necessary for the establishment of species rich grassland can be obtained through direct harvesting in seed source semi-natural vegetations. To check this possibility in the case of the Arrhenatherion grasslands, three experimental trials were performed of this type of vegetation in the Czech Republic, Italy and Poland. At the first re-growth 2009, harvesting was carried out with the main techniques available, harvesting as green hay, as dry hay (hay-making), threshing and seed stripping. The efficiency of the several techniques was evaluated as concerns both the no. of seeds and the no. of species harvested. GH seems to be the most efficient technique, as it harvests nearly all seeds present, while OST harvests 22-35 % of the standing seed yield. Both DH and SSp showed efficiency higher than OST and lower than GH, while SSh showed a low efficiency. 60-70 % of the meadow species can be harvested as seed with one intervention at the end of the first re-growth. No harvesting of several species is mainly due to many species not being present as seed at the harvesting time and only to a small amount to the inefficiency of harvesting itself.
dcterms:title
Seed harvesting in Arrhenatherion semi-natural grasslands Seed harvesting in Arrhenatherion semi-natural grasslands
skos:prefLabel
Seed harvesting in Arrhenatherion semi-natural grasslands Seed harvesting in Arrhenatherion semi-natural grasslands
skos:notation
RIV/62334832:_____/11:2R002500!RIV12-MZE-62334832
n8:predkladatel
n9:ico%3A62334832
n4:aktivita
n16:O
n4:aktivity
O
n4:dodaniDat
n10:2012
n4:domaciTvurceVysledku
n15:6657028
n4:druhVysledku
n14:O
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n13:predkladatel
n4:idSjednocenehoVysledku
228574
n4:idVysledku
RIV/62334832:_____/11:2R002500
n4:jazykVysledku
n12:eng
n4:klicovaSlova
hay-making; semi-natural grasslands; seed harvesting; seed stripping; standing seed yield; threshing
n4:klicoveSlovo
n5:semi-natural%20grasslands n5:hay-making n5:threshing n5:standing%20seed%20yield n5:seed%20harvesting n5:seed%20stripping
n4:kontrolniKodProRIV
[0D2F24DF5E3D]
n4:obor
n6:EH
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n10:2011
n4:tvurceVysledku
Goliński, Piotr Scotton, Michele Ševčíková, Magdalena