Evaluation of the DRIS procedure for assessing the nutritional status of potato (<i>Solanum tuberosum</i>L.)

MacKay, D. C.; Carefoot, J. M.; Entz, T.

doi:10.1080/00103628709367904

Cited by 25 publications

(14 citation statements)

References 22 publications

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“…[5][6][7][8] Leaf N content is used, for instance, in multielement determinations for Diagnosis and Recommendation Integrated System (DRIS) interpretation. [9,10] More recently, leaf greenness, estimated by portable chlorophyll meters, is also frequently used. [11][12][13] The presidedress soil nitrate test acquired great importance on corn, [14][15][16][17] and we can use it in other crops, such as potatoes.…”

Section: Reprintsmentioning

confidence: 99%

Establishment of Continuous Critical Levels for Indices of Plant and Presidedress Soil Nitrogen Status in the Potato Crop

Rodrigues¹

2005

Communications in Soil Science and Plant Analysis

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Critical levels for six plant and pre-sidedress soil nitrogen indices were established for the growing season and their relative accuracy to diagnose the need for supplemental sidedress N was also compared. Field trials were conducted from 1996 to 1998 with irrigated potato in North-eastern Portugal. Fertilizer treatments included several pre-plant and sidedress N rates. Petiole nitrate concentrations (determined by a standard laboratory method and with the portable RQflex reflectometer), leaf N content, leaf greenness (SPAD-502 chlorophyll meter), pre-sidedress soil NO 3 -N and pre-sidedress soil inorganic-N (NO 3 -N + NH 4 -N) were selected as N indicators. The Cate-Nelson graphical method and an analytical procedure using Mitscherlich type curves were used to determine critical levels. In both cases, a yield reduction of 10 % was accepted. The accuracy of the diagnostics was estimated from the Cate-Nelson graphical method, quantifying the point percentage that appears in negative quadrants (the error rate). The graphical method yielded lower critical levels, appearing as the The N indicators with lower error rate were the pre-sidedress soil NO 3 -N and pre-sidedress soil inorganic-N (both showing an error rate of 8.3 %), followed by petiole nitrate concentration (determined in laboratory, 12.0 %, and with RQflex reflectometer,12.5 %), leaf N content (13.0 %) and leaf greenness (14.6 %). Error rates were similar throughout the growing season, meaning that is possible to get information about the need for supplementary N in the very early growth stages.

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Section: Reprintsmentioning

confidence: 99%

Establishment of Continuous Critical Levels for Indices of Plant and Presidedress Soil Nitrogen Status in the Potato Crop

Rodrigues¹

2005

Communications in Soil Science and Plant Analysis

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“…Among the main horticultural species already diagnosed by this method are the lettuce (Sanchez et al, 1991), tomato (Caron & Parent, 1989;Caron et al, 1991;Hartz et al, 1998;Parent et al, 1993;Rouin et al, 1988;Mayfield et al, 2002), potato (Mac Kay et al, 1987;Meldal-Johnsen & Sumner, 1980;Navvabzdeh & Malakouti, 1993;Parent et al, 1994a), onion (Caldwell et al, 1994), cucumber (Mayfield et al, 2002), and carrot (Parent et al, 1994b) There are few research works in the literature about the application of DRIS method in ornamental plants. Some of them refer to the Christmas pine (Abies fraseri) (Rathfon & Burger, 1991a;1991b;Arnold et al, 1992).…”

Section: -Application Of Dris Methods To Fruit Cropsmentioning

confidence: 99%

DRIS: concepts and applications on nutritional diagnosis in fruit crops

Filho¹

2004

Sci. agric. (Piracicaba, Braz.)

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Nutrition and fertilization are important factors in determining fruit yield and fruit quality. There are several methods for plant nutritional status diagnosis, among them, two are relevant and named as Sufficiency Range Approach (SRA) and Diagnosis and Recommendation Integrated System (DRIS). This research reports the main concepts and applications of DRIS in nutritional diagnosis of fruit crops, comparing it with current nutritional diagnosis methods, indicating advantages and disadvantages, and possible limitations to be investigated. Key words: foliar analysis, fruit crops, mineral nutrition DRIS: CONCEITOS E APLICAÇÕES NA DIAGNOSE NUTRICIONAL EM PLANTAS FRUTÍFERASRESUMO: A nutrição e a adubação são fatores determinantes na produtividade dos pomares e na qualidade de frutos. Dentre os diversos métodos de diagnose nutricional das plantas, destacam-se o critério de faixas de suficiência (CFS) e o sistema integrado de diagnose e recomendação (DRIS -"Diagnosis and Recommendation Integrated System"). São relatados neste trabalho os principais conceitos e aplicações do método DRIS na diagnose nutricional em fruteiras, comparando-o com os sistemas atuais de diagnose nutricional, apontando vantagens e desvantagens, e possíveis limitações a serem investigadas. Palavras-chave: análise foliar, fruticultura, nutrição mineral

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“…There is little data on N concentration variability in parts of the potato plant during yield development (Kolbe & Stephan‐Beckmann, 1997). As a rule, it is limited to the vines that are the most important part of the potato used for nutrient diagnostics (Grzebisz et al., 2018; MacKay, Carefoot, & Entz, 1987). There is not much data available on the nutrients that support N in its impact on tuber yield development, such as P, K, and Mg (Mackie‐Dawson, Millard, & Robinson, 1990).…”

Section: Introductionmentioning

confidence: 99%

The in‐season nitrogen concentration in the potato tuber as the yield driver

Grzebisz

Potarzycki

2020

Agronomy Journal

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Potato (Solanum tuberosum L.) tuber sink strength is determined by the maximum nitrogen concentration (N cmax ) in the tuber within the growing season. This hypothesis was verified based on data from two seasons with contrasting weather conditions, that is, the wet 2007 and the dry 2008. A field experiment, including four levels of nutrients: absolute control (AC), NP, NPK, and NPKMgS, was the basis of the hypothesis evaluation. Vines and tubers were collected periodically at 10-11 d intervals in 10, and nine consecutive samplings, respectively. Tuber yield growth was described by the linear and polynomial functions under favorable and unfavorable growth conditions, respectively. The polynomial functions indicated lower tuber yields (+20 t ha-1 for NPK vs. NP in 2007). The N cmax of the growing tuber is the key yield driver, defining the tuber sink capacity. As compared to the in-season variability in N a (N accumulated in vines-source capacity), the N cmax was a conservative trait, up-regulating the source activity. The narrowed N/P from 5.9 to 2.1, but from 4.6 to 1.9 and for N/Mg from 26 to 12, but from 22 to 14, respectively in 2007 and 2008, increased the steepness of the N c during its descending course. The tuber sink capacity can be fulfilled, provided there is a good supply of K during potato bulking. It can be concluded that the higher the N cmax , the higher the potato requirement for K. Any factor lowering the N cmax simultaneously decreases the potato requirement for K, subsequently leading to yield losses.

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Evaluation of the DRIS procedure for assessing the nutritional status of potato (Solanum tuberosumL.)

Cited by 25 publications

References 22 publications

Establishment of Continuous Critical Levels for Indices of Plant and Presidedress Soil Nitrogen Status in the Potato Crop

Establishment of Continuous Critical Levels for Indices of Plant and Presidedress Soil Nitrogen Status in the Potato Crop

DRIS: concepts and applications on nutritional diagnosis in fruit crops

The in‐season nitrogen concentration in the potato tuber as the yield driver

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