20.500.12556/DKUM-44363 Vpliv gnojila PRP na razprostranjenost korenin v tleh pri jablani na šibki podlagi M9 The Influence of PRP Fertilizer on Apple Tree Root Expanse in the Soil on a Weak M9 Rootstock V letih 2010, 2011 in 2012 smo izvedli poskus gnojenja s kalcijevim gnojilom PRP, ki se prišteva med aktivatorje tal. V poskus je bilo vključenih 40 dreves jablan sort 'Zlati delišes', 'Pinova', 'Breaburn', 'Gala', 'Gala' Schniga in 'Jonagold'. Prvo obravnavanje je predstavljala kontrola (brez dodatnega gnojenja s kalcijem), drugo obravnavanje pa gnojenje z aktivatorjem tal PRP v odmerku 400kg/ha zgodaj spomladi, vsa tri leta poskusa. Pri vsaki sorti jablan sta bili izkopani po dve pedološki jami; ena pri kontrolnih drevesih in ena pri drevesih, pognojenih s PRP. V pedološke jame je bila postavljena pedološka mreža, sestavljena iz kvadratnega okvirja z merami 100 cm x 100 cm, v katerem je bila razpeta mreža z merami kvadratkov 10 cm x 10 cm. S pomočjo pedološke mreže smo prešteli korenine različnih debelin (od 0 do 6 mm in večje) ter ugotovili njihovo razporejenost v različnih globinah tal (od 0 do 100 cm). Rezultati so pokazali, da je gnojenje s kalcijevim gnojilom PRP, statistično značilno povečalo skupno število korenin pri sortah 'Pinova', 'Jonagold' in 'Gala', medtem ko pri ostalih sortah ta vpliv ni bil izrazit. Pri sortah 'Braeburn', 'Pinova' in ' Jonagold' je uporaba gnojila PRP povečala število debelejših korenin, glede razraščanja korenin v globino pa vpliva PRP nismo potrdili. In 2010, 2011 and 2012 a fertilization experiment with the calcium fertilizer PRP, which is a soil activator, was conducted on the estate of the Faculty of Agriculture and Life Sciences. The experiment included 40 apple trees of the cultivars 'Golden Delicious', 'Pinova', 'Breaburn', 'Gala', 'Gala' Schniga and 'Jonagold'. The first treatment was just controlled (without additional fertilization with calcium) and the second treatment included a tree fertilization dosage of 400 kg/ha with the PRP soil activator in early spring, which was carried out all three years of the experiment. Two pedological pits were dug out, one next to the control trees and another next to the trees fertilized with PRP. Meshes, consisting of a square wooden 100 cm x 100 cm frame into which a mesh with 10 cm x 10 cm grid holes was tightened, were put into the pedological pits. With the help of the mesh, roots of different thicknesses (0 to 6 mm and more) were counted and their arrangement in different soil depths determined (0 to 100 cm). Results have shown that the fertilization with the PRP calcium fertilizer has statistically increased the total amount of roots with the cultivars Pinova, Jonagold and Gala, but showed no remarkable influence on the other cultivars. The use of PRP fertilizer increased the number of thicker roots with the cultivars 'Braeburn', 'Pinova' and 'Jonagold', whereas an influence of PRP on deeper root expansion was not confirmed. jablana razprostranjenost korenin aktivator tal kalcijevo gnojilo apple tree root expansion soil activator calcium fertilizer true true false Slovenski jezik Angleški jezik Diplomsko delo 2014-05-21 13:28:43 2014-05-30 08:57:16 2022-05-12 03:07:59 2021-05-01 03:17:27 2014 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:H1CURFLC VS_Ursic_Iztok_2014.pdf VS_Ursic_Iztok_2014.pdf 1 B606C0CBED778EFBCB44603CE9A21D64 f7389b8ba249bfcfdfe0f6fcbdbf2672c6d36ea179ff0f7dbd10f4965cbd0593 d706af34-7c0a-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=63672 Fakulteta za kmetijstvo in biosistemske vede 0 0 0