Abstract
In recent years, research has focused on verifying various ways of dosing organic matter into the soil in Central European conditions. The main reason for this is to search for the optimal management methods for soils with permanent vegetation. In this article, we state and evaluate the results of experiments carried out at the Lednice experimental site (Sauvignon Blanc variety) and the Velké Bílovice experimental site (Pinot Gris variety) between 2018 and 2020. The experiments evaluated the deep placement of compost and compost enriched with lignohumax at a rate of 30 t·ha−1 in the areas around vineyard tree trunks on the basic physical properties of the soil and the yield and quality of grapes. Results proved the positive effect of compost heaps and compost combined with the applied lignohumax on improving soil density (2–10% difference compared with the unfertilized reference variant) and porosity, which ultimately resulted in improved soil moisture conditions at both experimental sites (8–25% difference compared with the unfertilized reference variant). At the same time, the results demonstrated the positive effect of the applied compost and the chosen method of application on the yield and quality of grapes. In the case of Sauvignon Blanc, the increase in yield in the fertilized variants was 12–34%, while, in the case of Pinot Gris, it ranged from 24 to 33%. Among qualitative indicators, the grapes of both varieties were evaluated for sugar content, total acidity, pH, and amount of yeast assimilable nitrogen. In this case, results were not unambiguous in favor of fertilized variants; however, in most cases, fertilization had a positive effect.
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Claims 7
Claim · model-written summary
Compost improved soil density by 2–10% versus unfertilized reference.
Verbatim
e0“compost heaps and compost combined with the applied lignohumax on improving soil density (2–10% difference compared with the unfertilized reference variant)”
t0“Grapes”
Claim · model-written summary
Compost improved soil porosity.
Verbatim
e0“improving soil density (2–10% difference compared with the unfertilized reference variant) and porosity”
e1“compost heaps and compost combined with the applied lignohumax”
t0“Grapes”
Claim · model-written summary
Compost improved soil moisture conditions by 8–25% at both sites.
Verbatim
e0“improved soil moisture conditions at both experimental sites (8–25% difference compared with the unfertilized reference variant)”
e1“compost heaps and compost combined with the applied lignohumax”
t0“Grapes”
Claim · model-written summary
Fertilized Sauvignon Blanc yield increased 12–34%.
- Taxon
- Grapest0
- Material
- Sauvignon Blance0
- Treatment
- fertilized variantse0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 12–34%e0
Not reportedComparator
Verbatim
e0“In the case of Sauvignon Blanc, the increase in yield in the fertilized variants was 12–34%”
t0“Grapes”
Claim · model-written summary
Fertilized Pinot Gris yield increased 24 to 33%.
- Taxon
- Grapest0
- Material
- Pinot Grise0
- Treatment
- fertilized variantse1
- Outcome
- yielde1
- Direction
- increasee1
- Value
- 24 to 33%e0
Not reportedComparator
Verbatim
e0“in the case of Pinot Gris, it ranged from 24 to 33%”
e1“the increase in yield in the fertilized variants”
t0“Grapes”
Claim · model-written summary
Compost application improved grape quality overall.
Not reportedComparator
Verbatim
e0“the results demonstrated the positive effect of the applied compost and the chosen method of application on the yield and quality of grapes”
Claim · model-written summary
Fertilization usually helped quality indicators, though effects were not unambiguous.
- Taxon
- Grapest0
- Treatment
- fertilizatione0
- Outcome
- sugar content, total acidity, pH, and amount of yeast assimilable nitrogene1
- Direction
- positive effecte0
- Qualifier
- not unambiguouse0
Not reportedComparator
Verbatim
e0“results were not unambiguous in favor of fertilized variants; however, in most cases, fertilization had a positive effect.”
e1“sugar content, total acidity, pH, and amount of yeast assimilable nitrogen”
t0“Grapes”
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