High potential of variable rate fertilization combined with a controlled released nitrogen form at affecting cv. Barbera vines behavior

Gatti, Matteo; Schippa, M.; Garavani, Alessandra; Squeri, Cecilia; Frioni, Tommaso; Dosso, Paolo; Poni, Stefano

doi:10.1016/j.eja.2019.125949

Cited by 28 publications

(21 citation statements)

References 37 publications

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“…Nitrogen (N), which results from the mineralisation of soil organic matter, is a nutrient that affects vine growth and grape composition. High levels of N tend to delay grape maturation (Spayd et al, 1994;Hilbert et al, 2003), as well as to decrease total soluble solids, maintain titratable acidity, increase pH and decrease polyphenol concentration (Spayd et al, 1994;Morlat and Symoneaux, 2008), even in low vigour vineyards (Gatti et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Mechanical pruning and soil organic amendments in vineyards of Syrah: effects on grape composition

et al. 2021

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Aim: The interaction of mechanized pruning systems and soil organic amendment can increase vine productivity. However, since the increase in productivity may affect grape composition, this study aimed to understand the effects of the interaction between these two practices.Methods and materials: Two field trials were implemented in Shiraz vineyards in two different wine regions. Mechanical hedge pruning was compared with hand spur pruning and four different organic amendments were tested: biochar, municipal solid waste compost, cattle manure and sewage sludge.Results: Mechanical pruning reduced the total soluble solids (TSS) and pH of the grapes, but had no effects on the other variables. Organic amendments also reduced TSS, especially sewage sludge, and tended to reduce total anthocyanins and total phenols. The effect of the interaction between both factors on grape composition was never significant. A negative relationship between yield and TSS was observed, while titratable acidity had no relationship with yield. Total anthocyanins were also negatively related to yield. A positive relation between TSS and total anthocyanins was also observed.Conclusions: The results show that the combination of mechanical pruning and soil organic amendment is a powerful tool for increasing productivity, but it has some effects on grape composition.Significance and impact of study: The reduction in some fruit composition variables showed that, while mechanical pruning does not significantly affect grape composition, the choice of type and amount of organic amendment will depend on the destination of the grapes.

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Section: Introductionmentioning

confidence: 99%

Mechanical pruning and soil organic amendments in vineyards of Syrah: effects on grape composition

et al. 2021

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“…Within-field vineyard variability was measured in July 2014 by satellite imagery at 5 m ground resolution and represented by an NDVI map as previously reported by Gatti et al (2020). Based on an equal-area algorithm, the vigor map was then partitioned into three vigor classes namely low (LV), medium (MV) and high (HV), corresponding to the NDVI ranges 0.276-0.329, 0.290-0.382 and 0.382-0.435, respectively (Fig.…”

Section: Plant Material Vigor Maps and Experimental Layoutmentioning

confidence: 99%

“…Bramley et al (2005) have confirmed that contrasting wines might derive from different areas within the same, uniformly managed vineyard. This outcome shifted the terroir focus from a broad regional scale to a single vineyard level (Vaudour et al, 2015) paving the way to either exploitation or correction of current variability towards the desired level (Gatti et al, 2018(Gatti et al, , 2020. However, the latter approach can be implemented if a few issues are clarified to include (i) temporal (i.e.…”

Section: Introductionmentioning

confidence: 99%

Effects of intra-vineyard variability and soil heterogeneity on vine performance, dry matter and nutrient partitioning

et al. 2021

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Three vigor zones, identified in a Barbera vineyard by remote sensing at full canopy, were carefully ground-truthed to determine, over 2 years, the relative weight of soil factors in affecting within-field variability, and to investigate vigor zone influence on dry matter (DM) and nutrient partitioning into different vine organs. Regardless of season, high vigor (HV) achieved stronger vine capacity as total vegetative growth and yield while resulting in markedly less ripened fruits than low vigor (LV) vines. PCA analysis carried out on ten different soil and vine variables clearly separated the three vigor levels and the correlation matrix highlighted that the factors mostly contributing to HV were soil depth, soil K and P concentration, total available water, clay fraction and Nleaf concentration. Conversely, sand fraction was the main marker for LV. When annual DM retrieved in clusters, canes, leaves, and shoot clippings was calculated for each vigor level and expressed as content (i.e. kg/ha) there was a general decreasing trend moving from HV to LV. However, when DM partitioned to each organ was given on a relative basis (i.e. percentage over total) results were similar across vigor levels. Similarly, when nutrients were given as content (e.g. kg or g/ha) out of 120 within-vigor combinations (12 nutrients, 2 seasons, 5 organs), 65 showed a significant difference between HV and LV. Conversely, with data expressed on a concentration basis (i.e. % DM) the number of significant differences between the vigor level means fell to 15. The study strengthens the causal link between soil properties and intra-vineyard spatial variability and clarifies that patterns of dry matter and nutrient partitioning to different vine organs are mildly affected by vine vigor when referred on a relative basis.

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“…Its characterization is left to a spatial and temporal mapping of crop status, vegetative growth, yield, and fruit quality variables and paves the way to the enticing prospect that the general negative traits usually bound to "variability" might turn into an unexpectedly profitable scenario (Rudd et al 2017, Shafi et al 2019. In fact, once proper spatial in-field variability is described and quantified the same can either be exploited through selective management operations (Bramley et al 2005) or by balancing it towards the most rewarding status through the adoption, for instance, of variable rate technologies (Gatti et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Is Precision Viticulture Beneficial for the High-Yielding Lambrusco (Vitis Vinifera L.) Grapevine District?

et al. 2021

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High potential of variable rate fertilization combined with a controlled released nitrogen form at affecting cv. Barbera vines behavior

Cited by 28 publications

References 37 publications

Mechanical pruning and soil organic amendments in vineyards of Syrah: effects on grape composition

Mechanical pruning and soil organic amendments in vineyards of Syrah: effects on grape composition

Effects of intra-vineyard variability and soil heterogeneity on vine performance, dry matter and nutrient partitioning

Is Precision Viticulture Beneficial for the High-Yielding Lambrusco (Vitis Vinifera L.) Grapevine District?

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