PRIMERNOST UPORABE DUŠIKOVIH GNOJIL PRI ČEŠNJI SORTE 'SUMMIT'

Tomše, Gregor

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Title:	PRIMERNOST UPORABE DUŠIKOVIH GNOJIL PRI ČEŠNJI SORTE 'SUMMIT'
Authors:	ID Tomše, Gregor (Author) ID Tojnko, Stanislav (Mentor) More about this mentor... ID Unuk, Tatjana (Comentor)
Files:	VS_Tomse_Gregor_2016.pdf (792,28 KB) MD5: 91312FA63B8206FD91FE305988A85FA7
Language:	Slovenian
Work type:	Bachelor thesis/paper
Organization:	FKBV - Faculty of Agriculture and Life Sciences
Abstract:	V letu 2015 smo v okviru diplomskega dela v sklopu projekta CRP – Tehnologije pridelave hrušk in češenj izvajali gnojilni poskus na pet let starih češnjah (Prunus avium L.) sorte 'Summit', cepljenih na podlago Gisela 5. V poskusu smo spremljali vpliv odmerka in časa gnojenja z gnojilom KAN na rast in rodnost češenj ter kakovost pridelka. Postavili smo dvofaktorski poskus, kjer je prvi faktor predstavljal odmerek dušika (80 oz. 120 kg N/ha), drugi faktor pa čas gnojenja (spomladi, jeseni). Poskus je zajemal 4 različna obravnavanja; 1. obravnavanje (skupno 120 kg N/ha, gnojeno neposredno po cvetenju, nato še dvakrat z enomesečnim zamikom), 2. obravnavanje (skupno 120 kg N/ha, gnojenje jeseni, spomladi, neposredno po cvetenju in en mesec po cvetenju), 3. obravnavanje (skupno 80 kg N/ha, gnojenje neposredno po cvetenju in en mesec za tem) in 4. obravnavanje (skupno 80 kg N/ha, gnojeno jeseni in spomladi, neposredno po cvetenju). Različni odmerki in termini gnojenja niso statistično značilno vplivali na noben spremljani parameter rasti, rodnosti in kakovosti plodov, razen na vsebnost suhe snovi v plodovih; večji odmerek (120 kg N/ha) in čas gnojenja spomladi sta povečala vsebnost topne suhe snovi v primerjavi z odmerkom 80 kg N/ha in gnojenjem v jeseni. Opazili smo tudi vpliv časa gnojenja in odmerka dušika na obarvanost plodov; pri uporabi manjšega odmerka dušika je gnojenje spomladi imelo za posledico svetlejše plodove v času obiranja (parameter L). Potrdili smo tudi pozitivni vpliv manjšega odmerka dušika, dodanega spomladi, na intenzivnejšo rdečo obarvanost plodov (barvni parameter a). Kljub temu da nismo potrdili statistično značilnih razlik pri parametrih površina preseka debla (cm²) in skupni pridelek (kg/drevo), smo zabeležili trend večje rasti in rodnosti češenj pri uporabi 80 kg N/ha, neodvisno od časa gnojenja.
Keywords:	češnja, 'Summit', dušik, gnojenje, odmerek, rast, rodnost, kakovost
Place of publishing:	Maribor
Year of publishing:	2016
PID:	20.500.12556/DKUM-64075
NUK URN:	URN:SI:UM:DK:KRJFBNTF
Publication date in DKUM:	07.10.2016
Views:	1914
Downloads:	138
Metadata:
Categories:	FKBV
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Secondary language

Language:	English
Title:	ADEQUANCY OF NITROGEN FERTILIZERS USE FOR CHERRY VARIETIES 'SUMMIT'
Abstract:	In the year 2015 an experiment was carried out in the extent of the thesis within CRP project – Technology of pear and cherry production on five year old cherry (Prunus Avium L.) varieties 'Summit' grafted on Gisela 5 rootstock. In the experiment we observed the influence of dose and timing of fertilization with fertilizer KAN on growth, fertility and quality of fruit. We set up a two factor experiment where the first factor represented the dose of nitrogen (80 or 120 kg N/ha) and the second factor represented timing of fertilization (spring, fall). The experiment included 4 different treatments; 1. treatment (total 120 kg N/ha, fertilized after bloom, and twice after that with one month delay), 2. treatment (total 120 kg N/ha, fertilized in fall, spring just before bloom and one month after that), 3. treatment (total 80 kg N/ha, fertilized after bloom and one month after that) and 4 treatment (total 80 kg N/ha, fertilized in fall and spring just after bloom). Different doses and timing of fertilization did not statistically differently influence any of the followed parameters of growth, fertility and fruit quality except dry matter content in fruit, bigger dose (120 kg N/ha) and timing of application in the spring increased the dry matter content in comparison with the dose of 80 kg N/ha and timing of fertilization in the fall. We also observed that timing and dose of nitrogen on fruit coloring; the use of smaller dose of nitrogen had effect on lighter fruit color in the spring (parameter L. We confirmed positive influence of smaller dose of nitrogen fertilized in the spring on red fruit color intensity (color parameter a*). Despite the fact that we didn’t confirm statistically significant differences in parameters of the trunk cross-sectional area and total yield a trend of increased growth and fertility was noticed at use of 80 kg N/ha independently of timing of fertilization.
Keywords:	cherry, 'Summit', nitrogen, fertilization, dose, growth, fertility, quality

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