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Vpliv zgoščevanja tal pri paši na rast korenin plazeče detelje (Trifolium repens)Vidrih, Tone ; Štupica, Tatjana ; Vidrih, Marija, 1942-Proučevana je zgoščenost zemlje po večletni intenzivni paši povprek s kravami molznicami na težkih glinastih tleh. Spomladi 1991,smo neposredno v rušo vsejali plazečo deteljo (7 kg/ha). Naslednje ... leto so potekale na pašniku meritve o količini razpoložljive paše, izkoristku ruše in njeni botanični sestavi. Na osnovi meritev s penetrometrom je bila ugotavljanazgoščenost zemlje. Z vzorčenjem tal spomladi, poleti in jeseni do globine 30 cm (core method) je bil določen vpliv zgoščenosti tal na razvoj korenin bele detelej. Uveljavitev bele detelje vsejane neposredno v rušo je bila zelo dobra. Naslednjo pomlad je njen delež v ruši znašal 33%,pašeno je bilo pri 1.5-2.3 t/ha zelinja (suha snov) in dnevni prirast je znašal 69-97 kg/ha suhe snovi. Pri gostoti 1.1 Mg/m3 in 57.5% poroznosti je zgoščenost zemlje (penetrometer resistance) znašal 4.2-4.4 MPa. takrat so imela tla v vrhnji plasti 28.2% vode. Povprečno je bilo 0.44 cm korenin na vsak cm3 zemlje in specifična dolžina korenin je znašala 17.3m/g. Ugotovljene vrednosti so nižje v drugih raziskavah za prekoreninjeno plast tal pod rušo.Source: Znanost in praksa v govedoreji. - ISSN 0353-720X (Zv. 18, 1994, str. 19-23)Type of material - article, component partPublish date - 1994Language - slovenianCOBISS.SI-ID - 43782400
Author
Vidrih, Tone |
Štupica, Tatjana |
Vidrih, Marija, 1942-
Topics
zemlja |
paša |
detelja |
rast |
zgoščevanje tal |
bela detelja |
prirast paše |
korenina |
korenina |
soil |
penetrometer resitance |
white clover |
yield of grazed pasture |
roots |
roots
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Vidrih, Tone | 00955 |
Štupica, Tatjana | 00409 |
Vidrih, Marija, 1942- | 06931 |
Source: Personal bibliographies
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