diplomsko delo
Anja Sluga (Avtor), Marko Flajšman (Mentor), Darja Kocjan Ačko (Komentor)

Povzetek

Krompir (Solanum tuberosum L.) je ključnega pomena za prehrano ljudi. Je okopavina, ki za dobro rast in razvoj potrebuje rahla, globoka in rodovitna tla z dovolj hranil. Za gospodarsko upravičeno pridelavo se razvijajo različna gnojila, od katerih pričakujemo povečanje pridelka gomoljev. Ena izmed novejših gnojil na trgu so organsko-mineralna gnojila. To so kombinirana gnojila, pri katerih je organskemu nosilcu, ki je naravnega izvora, na primer šota, dodano tudi mineralno gnojilo. Na fakulteti smo izvedli tri bločne poljske poskuse z dvema sortama krompirja ('KIS Sora' in 'Memphis') ter tremi načini gnojenja (1 - običajno mineralno gnojenje z 888 kg/ha NPK 6-12-24 + 6 % SO3 in 296 kg/ha KAN ob dognojevanju; 2 - SCAM OM gnojenje s 1100 kg/ha Superalbe Max in 300 kg/ha SuperRobur ob dognojevanju; 3 – kontrolno gnojenje s 760 kg/ha NPK 0-14-28 in brez dodajanja dušika). Zanimal nas je vpliv obravnavanj na pridelek krompirja ter dinamika amonija in nitrata v tleh. Dušik pri prvem in dugem vzorčenju je bil relativno izenačen na vseh parcelicah, pri tretjem pa so se pokazale razlike, največ talnega mineralnega dušika je bilo pri mineralnem gnojenju (65,7 kg/ha), najmanj pa pri OM gnojenju (48,8 kg/ha). Leto 2019 je bilo zaradi neugodnih vremenskih razmer manj ugodno za pridelavo krompirja. Pridelek sorte 'KIS Sora' je bil 15820 kg/ha, sorta 'Memphis' je dosegla 37,7 % manjši pridelek. Krompir na kontrolnih parcelah je bil drobnejši, skupni pridelek pa najmanjši in je znašal 9159 kg/ha, pri mineralnem gnojenju je pridelek dosegel 14170 kg/ha, pri SCAM organsko-mineralnem gnojenju pa je bil skupni pridelek gomoljev 15300 kg/ha.

Ključne besede

krompir;Solanum tuberosum;organsko-mineralna gnojila;pridelek gomoljev;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL BF - Biotehniška fakulteta
Založnik: [A. Sluga]
UDK: 633.491(043.2)
COBISS: 91916547 Povezava se bo odprla v novem oknu
Št. ogledov: 133
Št. prenosov: 21
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Effect of organic-mineral fertilizers on the yield of potatoes (Solanum tuberosum L.) and dynamics of mineral nitrogen in the soil
Sekundarni povzetek: Potatoes (Solanum tuberosum L.) play an essential role in the human diet. It is a tuber crop that needs loose, deep and fertile soil with sufficient nutrients for good growth and development. In order to make production economically viable, various fertilizers are being developed which are expected to increase the yield of tubers. At the Biotechnical Faculty, we conducted three block field experiments with two varieties of potatoes. We planted two potato varieties ('KIS Sora' and 'Memphis'). We applied three different fertilizers (1- mineral fertilization we used 888kg/ha NPK 6-12-24 + 6% SO3 and 296 kg/ha KAN for additional fertilization; 2- organic-mineral SCAM fertilization we used 1100 kg/ha Superalbe Max and 300 kg/ha SuperRobur for additional fertilization; 3- for the control fertilization we used 760 kg/ha NPK 0-14-28, and did not additionally fertilize). We were interested in the effect of different forms and amounts of nitrogen on potato yield, and the dynamics of ammonium and nitrate in the soil. Nitrogen in the first and second sampling was relatively equal. The differences were shown in the third case, the highest ground mineral nitrogen was in mineral fertilization (65.7 kg/ha) and the lowest in OM fertilization (48.8 kg/ha). When the crop was harvested, we observed a marked difference between the fertilized plots where we did not add nitrogen and those where we did. Due to unfavorable weather conditions, 2019 was less favorable for potato production. The yield of the variety 'KIS Sora' was 15820 kg/ha, the variety 'Memphis' achieved a 37.7% lower yield. The potatoes in the control plots were smaller and the total yield was lower, at 9159 kg/ha, the total yield in the plots with mineral fertilization was at 14,170 kg/ha and in the plots with organic-mineral SCAM fertilization at 15300 kg/ha.
Sekundarne ključne besede: potato;Solanum tuberosum;organic fertilizers;mineral fertilizers;tubers;yield;
Vrsta dela (COBISS): Diplomsko delo/naloga
Študijski program: 0
Komentar na gradivo: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
ID: 14283302