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Open AccessArticle

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

1
Agronomy Department, São Paulo State University, Campus of Registro, Federal University of Paraná, Av. Nelson Brihi Badur, 430—Vila Tupy, Registro, SP 11900-000, Brazil
2
Soil Science Department, Federal University of Santa Maria, Av.Roraima, 1000, Camobi, Santa Maria, RS 97105-900, Brazil
3
Embrapa Uva e Vinho (Embrapa Grape and Wine), Rua Livramento, 515, Centro, Bento Gonçalves, RS 95701-008, Brazil
4
Department of Plant Science, Federal University of Ceará, Av. Mister Hull, Fortaleza, CE s/n - Pici - 60455-760, Brazil
5
Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 46 40127 Bologna, Italy
*
Author to whom correspondence should be addressed.
Horticulturae 2020, 6(3), 56; https://doi.org/10.3390/horticulturae6030056
Received: 24 July 2020 / Revised: 1 September 2020 / Accepted: 2 September 2020 / Published: 4 September 2020
(This article belongs to the Special Issue Fertilization Management of Horticultural Crops)
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. View Full-Text
Keywords: Vitis vinifera L.; mineral nutrition; leaf diagnostic; nutritional balance; yield Vitis vinifera L.; mineral nutrition; leaf diagnostic; nutritional balance; yield
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Rozane, D.E.; Vahl de Paula, B.; Wellington Bastos de Melo, G.; Haitzmann dos Santos, E.M.; Trentin, E.; Marchezan, C.; Stefanello da Silva, L.O.; Tassinari, A.; Dotto, L.; Nunes de Oliveira, F.; Natale, W.; Baldi, E.; Toselli, M.; Brunetto, G. Compositional Nutrient Diagnosis (CND) Applied to Grapevines Grown in Subtropical Climate Region. Horticulturae 2020, 6, 56.

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