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Primerjava vsebnosti vode v tleh med konvencionalno in ohranitveno obdelavo tal
ID Winkler, Andreja (Author), ID Glavan, Matjaž (Mentor) More about this mentor... This link opens in a new window

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Abstract
Kmetijstvo v Vipavski dolini je zaradi ugodnih podnebnih razmer in številnih naravnih danosti raznoliko ter primerno za pridelavo sadja, poljščin in vinske trte, pri čemer prevladuje vinogradništvo. Voda je v kmetijstvu nepogrešljiv vir, zato je zaradi podnebnih sprememb odgovorno upravljanje z vodo ključnega pomena. Izvedli smo raziskavo o vplivu načina obdelave kmetijskih tal na vsebnost vode v tleh v povodju reke Vipave. Meseca julija 2021 smo na dveh lokalnih kmetijah, eni s konvencionalno obdelavo tal (oranje) in eni z ohranitveno obdelavo (plitva obdelava brez obračanja tal), izbrali vzorčne parcele, na katere smo namestili merilne sonde znamke SM150T (Delta-T Devices, Cambridge, UK) in pričeli z meritvami, ki so se izvajale večkrat dnevno, vse do meseca septembra 2022. Rezultati raziskave kažejo, da ima način obdelave tal vpliv na vsebnost vode v tleh. V ohranitveno obdelanih tleh so povprečne vrednosti vsebnosti vode čez celotno rastno sezono (30–50 volumskih %) večje kot v konvencionalno obdelanih tleh (20–45 volumskih %), kar pripisujemo plitvi obdelavi brez obračanja tal, ohranjanju vsaj 30 % trajne pokritosti kmetijskih tal in vrstenju poljščin (kolobar). Poljska kapaciteta (PK) tal se nanaša na sposobnost tal za zadrževanje vode, na katero pomembno vpliva tudi način obdelave tal. Razlike v poljski kapaciteti tal pri obeh načinih obdelave so vidne. Vrednosti PK v konvencionalno obdelanih tleh (0,43–0,47 m³/m³) so v primerjavi z ohranitveno obdelanimi tlemi (0,41–0,42 m³/m³) nekoliko večje. Povprečne vrednosti vsebnosti vode v tleh so bile skozi celotno rastno sezono, na vseh globinah vzorčenja, v območju PK, kar pomeni, da so tla v veliki meri zadrževala optimalno količino vode za rast in razvoj rastlin

Language:Slovenian
Keywords:vsebnost vode v tleh, ohranitvena obdelava, konvencionalna obdelava
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2024
PID:20.500.12556/RUL-164526 This link opens in a new window
COBISS.SI-ID:213458435 This link opens in a new window
Publication date in RUL:30.10.2024
Views:94
Downloads:71
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Secondary language

Language:English
Title:Comparison of soil water content between conventional and conservational soil tillage
Abstract:
Due to the favourable climatic conditions and numerous natural features, agriculture in the Vipava Valley is varied and suitable for fruit, arable, and vine production, with viticulture predominating. Water is an indispensable resource in agriculture, and climate change makes responsible water management crucial. We carried out a study on the impact of agricultural tillage on soil water content in the Vipava river basin. In July 2021, we selected sample plots on two local farms, one with conventional (moldboard ploughing) and one with conservation tillage (shallow non-inversion tillage), installed SM150T probes (Delta-T Devices, Cambridge, UK), and started measurements, which were carried out several times a day until September 2022. The results of the study show that the method of soil tillage impacts soil water content. Conservation tillage soils have higher average water content values over the whole growing season (30-50% vol.) than conventionally tilled soils (20-45% vol.), which is attributed to shallow no-till, maintaining at least 30% permanent agricultural land cover, and crop rotation. The water-holding capacity (WHC) of the soil was also significantly influenced by the tillage method. The differences in the WHC of the soil between the two tillage methods were evident. The WHC values in conventionally tilled soils (0.43-0.47 m³/m³) were slightly higher compared to conservation tillage soils (0.41-0.42 m³/m³). The average soil water content values throughout the growing season, at all sampling depths, were within the WHC range, which means that the soil largely retained the optimum amount of water for plant growth and development.

Keywords:soil water content, conservation tillage, conventional tillage

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