20.500.12556/DKUM-84459 Analiza uporabe dodatka superabsorcijskega polimera v rastni substrat na morfoagronomske lastnosti sadik solate lettuca sativa var. comice (bvp4883) magistrsko delo Influencesuperabsorbent polymer usesubstrate on the morpho-agronomic properties of lettuce seedlings sativa var. comice (bvp4883) V magistrskem delu smo analizirali vpliv dodajanja superabsorberja (SA) v obliki kalijevega poliakrilata na življenjsko dobo sadik solate Lattuca sativa L. Var. Comice (BVP4883) in po metodi stroškov in koristi pregledali ekonomsko smiselnost dodajanja omenjenega SA. Rezultati poskusa potrjujejo, da lahko z dodatkom SA povečamo količino zadrževane vode v vsebnikih sadik, kar kažejo podatki iz prvega tehtanja. Vezana voda zaznavno v zelo podobni intenziteti zapušča vsebnike z in vsebnike brez dodatka SA. V ugodnih pogojih je obdobje, ko so rastline še primerne za prodajo (ocena več kot 3), za 5 dni daljše v vsebnikih z dodanim SA kot pri kontroli, kar pomeni, da se prodajno obdobje zaradi tega dejansko podvoji. V manj ugodnih pogojih ocena rastlin več kot 3 ostane pri vsebnikih z dodanim SA le en dan dlje kot pri kontroli. Sadike pod tovrstnimi neugodnimi pogoji ne vzdržijo niti običajnega prodajnega obdobja, ki traja 5 dni. Dodajanje SA v vsebnike sadik solatnic na pregledovanem primeru pomeni povečanje PLC vsebnika za 2,1%. Glede na dosežene rezultate ocenjujemo, da se zaradi podaljšanja časa v prodaji lahko trgovinski kalo zniža za vsaj 40%. Znižani kalo, ki neposredno vpliva na prihodke ter količino vračila in tudi vrednost sanacije vračila, daje izjemno pozitiven učinek glede gospodarnosti tovrstne pridelave. Točka preloma pri % kala na osnovi podanih predpostavk in brez upoštevanja stroškov sanacije kala znaša pri poskusu s SA 4,9 % in pri kontroli brez SA 6,8 %. In this thesis we analysed the effect of the addition of superabsorber (SA) in the form of potassium polyacrylate on the life span of Lattuca sativa L. Var. Comice (BVP4883) and examined the economic viability of the addition of this SA using the cost-benefit method. The results of the experiment confirm that it is possible to increase the water retention in the seedling containers by the addition of SA, as shown by the data from the first weighing. The retained water leaves the containers with and without the addition of SA at a very similar rate. Under favourable conditions, the period when plants are still marketable (score above 3) is 5 days longer in containers with added SA than in the control, which means that the marketable period is effectively doubled as a result. Under less favourable conditions, the rating of plants above 3 remains only one day longer in the SA-added containers than in the control. Under such unfavourable conditions, the seedlings cannot even withstand the normal marketing period of 5 days. The addition of SA to the containers of the lettuce seedlings in the case under examination results in an increase in the PLC of the container of 2,1 %. In the light of the results obtained, we estimate that the increase in time on sale may result in a reduction in the commercial callus of at least 40 %. The reduced callous, which has a direct impact on the revenue and the quantity of returns, as well as on the value of the restoration of the returns, has an extremely positive effect on the economic picture of this type of production. The breaking point for the % of sprouts, based on the assumptions given and without taking into account the sprout recovery costs, is 4.9% in the SA experiment and 6.8% in the control without SA. superabsorpcijski polimeri kalijev poliakrilat pridelava sadik ekonomičnost superabsorbent polymers pottasium polyacrylate seedling production economy true true false A. Smodič Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-06-10 15:49:22 2023-07-05 09:39:29 2023-07-06 03:07:30 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (IV, 40, [2] str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 635.52:631.547.1:631.8(043)=163.6 157735427 MAG_Smodic_Andrej_2023.pdf MAG_Smodic_Andrej_2023.pdf 1 2FE53EFFDB468EE43E031F1274FCE1BE eaf97ecd6475832db8c512eb279748a58e16885026ae2bcf633d16be26347bcc 8068811c-1a81-11ee-b5f2-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=168531 Fakulteta za kmetijstvo in biosistemske vede 0 0 0