Identification of the critical levels, sufficiency ranges and potential response to nutrient fertilization in vineyards by the DRIS method

Melo, George Wellington de; Rozane, Danilo Eduardo; Brunetto, Gustavo

doi:10.17660/actahortic.2018.1217.55

Cited by 10 publications

(7 citation statements)

References 16 publications

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“…This finding suggests specific standards for each cultivar. Critical nutrient levels in grapevine leaves were similar to those observed by Melo et al [22], (Table 5). The establishment of sufficiency bands allowed comparisons to the literature about the herein assessed culture (Table 5).…”

Section: Figuresupporting

confidence: 88%

“…Overall, the CND method showed nutritional band amplitude closer to that observed by Melo et al [22]; however, it was smaller than that reported in the literature (Table 5). Serra et al [48], considered the smallest amplitude band as positive information, because it allows greater accuracy to understand leaf content outcomes.…”

Section: Figuresupporting

confidence: 80%

“…Compositional nutrient diagnosis standard levels were related to levels reported for grapevines grown in Rio Grande do Sul State [22,41], where the present study was carried out. They were also related to outcomes found by Quaggio and Raij [44], in São Paulo State, Brazil.…”

Section: Figurementioning

confidence: 99%

“…In 2018, Melo and collaborators [22], used the diagnosis and recommendation integrated system (DRIS) to determine normal nutrient ranges in vineyards in Southern Brazil. However, the DRIS values were not associated with yield.…”

Section: Introductionmentioning

confidence: 99%

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Compositional Nutrient Diagnosis (CND) Applied to Grapevines Grown in Subtropical Climate Region

et al. 2020

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Soil analysis is used to estimate nutrient availability, but nutrient concentrations are not always related to yield in most fruit plants, including grapevines. Thus, additional multivariate mathematical models, such as the compositional nutrient diagnosis (CND), which takes into account leaves nutrient concentration, and yield, can contribute to estimating critical levels or sufficiency bands of elements, as well as to detect deficiency and/or excess of nutrients. The aim of the present study was to establish CND standards, and the critical level and sufficiency band of nutrients, in the grapevine Vitis vinifera L., grown in a subtropical climate region. Leaves were collected in 81 vineyards in the Campanha Gaúcha do Rio Grande do Sul region, Southern Brazil, and analyzed for macro- and micro-nutrient concentration. The yield of each vineyard was assessed. Grapevine nutritional status was calculated through the CND method. CND-r2 indices were effective in establishing the nutritional status of grapevines for macro- and micro-nutrients as sub-optimal, excessive, or balanced. The CND methodology established the critical level and sufficiency bands of nutrients more accurately than the current recommendations for grapevines. Multi-nutrient associations were more effective than the single nutrient determination in defining the threshold of a given nutrient that can reduce grapevine yield.

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Section: Figuresupporting

confidence: 88%

Section: Figuresupporting

confidence: 80%

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Compositional Nutrient Diagnosis (CND) Applied to Grapevines Grown in Subtropical Climate Region

et al. 2020

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“…A few programs recommend leaf blade samples, as supported by recent research on the US West Coast (Schreiner & Osborne, 2020; Schreiner & Scagel, 2017). In their study of K nutrition of Pinot Noir vines, Schreiner and Osborne (2020), compared leaf blades and petioles and found that leaf blade K was better than petiole K at predicting must (crushed fruit) pH and K. A few other research projects have analyzed whole leaves but have not compared to soil K or other tissue types (Arrobas et al., 2014; Melo et al., 2018). Therefore, our results suggest that whole leaf sampling may be a strategy that warrants further investigation for making nutrient management decisions.…”

Section: Discussionmentioning

confidence: 99%

Improving methods for evaluating potassium availability in vineyard soils

Fiola

Stewart

Evanylo

2023

Soil Science Soc of Amer J

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Vineyard soils often contain mineralogy that can confound predictions of plantavailable potassium (K). Too little or too much K uptake into wine-grape (Vitis varieties) tissues can negatively affect fruit chemistry, making it important to have soil tests that accurately quantify plant-available K. Our goal was to determine the best soil sampling, processing, and extraction methods for predicting K availability in vineyard soils. We sampled soil and grapevine tissue in 39 vineyard blocks from 22 vineyards in Virginia, Maryland, and New Jersey. Plant tissue sampling included petioles at bloom and both petioles and leaf blades at veraison. Soil samples were collected from 0 to 10-and 0 to 38-cm depths. We tested three soil extraction methods-Mehlich 1, Mehlich 3, and sodium tetraphenylboron (NaTPB)-on both oven-dried and field-moist samples. The different sampling, processing, and extracting procedures produced distinct K concentrations, with shallow 0-10 cm samples and NaTPB extraction resulting in higher K concentrations than their counterparts. Upon drying, three soils fixed K and 24 samples released K. Whole leaf (petiole plus leaf blade) samples collected at veraison had the best relationships with most soil K concentrations. The best soil testing method for predicting tissue K concentration in whole leaves at veraison was Mehlich 1 extractions of field-moist soils from 0 to 38-cm depth. This sampling combination appears to be best suited for growers to use when assessing K concentrations in vineyard soils.

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