Determination of a Multivariate Indicator of Nitrogen Imbalance (MINI) in Potato Using Reflectance and Fluorescence Spectroscopy

Bélanger, Marie-Christine; Viau, Alain A.; Samson, Guy; Chamberland, Martin

doi:10.2134/agronj2005.0040

Cited by 14 publications

(8 citation statements)

References 33 publications

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“…A similar trend was reported by Heisel et al (1997) for wheat (Triticum aestivum L.), but Campbell et al (2007) found that BGF decreases in corn with N at high N application rates. For most species and conditions, F(UV-B)/F(BG) ratios are higher for abaxial than adaxial leaf surfaces (Barnes et al 2000). Blue-green fluorescence has been used in conjunction with ChlF to detect plant stress and identify plant types (Chappelle and Williams 1987;Chappelle et al 1991).…”

Section: N-induced Changes and Applicationsmentioning

confidence: 99%

“…Ounis et al (2001) showed that the epidermal UV absorption of vegetation can be estimated from the ChlF excitation ratio, ФF(532)/ФF(355). Bilger et al (1997) and Barnes et al (2000) reported that noninvasive estimates of epidermal transmittance of UV radiation using ChlF can detect changes in pigmentation and in leaf optical properties induced by UV-B radiation under both field and laboratory conditions. Samson et al (2000) found that Phen may be a more specific indicator of crop N status than Chl because the latter is sensitive to sulfur deficiency.…”

Section: N-induced Changes and Applicationsmentioning

confidence: 99%

See 1 more Smart Citation

Sensing crop nitrogen status with fluorescence indicators. A review

Tremblay

Wang

Cerović

2011

Agron. Sustain. Dev.

221

209

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Section: N-induced Changes and Applicationsmentioning

confidence: 99%

Section: N-induced Changes and Applicationsmentioning

confidence: 99%

Sensing crop nitrogen status with fluorescence indicators. A review

Tremblay

Wang

Cerović

2011

Agron. Sustain. Dev.

221

209

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“…Fluorescence measurements are often combined with Vis-NIR. Using multivariate data analysis, this enabled distinction between N sufficient and N deficient potato plants in a greenhouse experiment, even when combined with K and Mg deficiencies ( Bélanger et al, 2005 ). A newly developed, hand-held instrument, Dualex ® , determines crop N status by measuring the NBI, which is the chlorophyll concentration divided by the concentration of flavonoids.…”

Section: Methods Of Plant Mineral Analysismentioning

confidence: 99%

Recent developments in fast spectroscopy for plant mineral analysis

Maarschalkerweerd

Husted

2015

Front. Plant Sci.

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Ideal fertilizer management to optimize plant productivity and quality is more relevant than ever, as global food demands increase along with the rapidly growing world population. At the same time, sub-optimal or excessive use of fertilizers leads to severe environmental damage in areas of intensive crop production. The approaches of soil and plant mineral analysis are briefly compared and discussed here, and the new techniques using fast spectroscopy that offer cheap, rapid, and easy-to-use analysis of plant nutritional status are reviewed. The majority of these methods use vibrational spectroscopy, such as visual-near infrared and to a lesser extent ultraviolet and mid-infrared spectroscopy. Advantages of and problems with application of these techniques are thoroughly discussed. Spectroscopic techniques considered having major potential for plant mineral analysis, such as chlorophyll a fluorescence, X-ray fluorescence, and laser-induced breakdown spectroscopy are also described.

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“…14.5 Development of New Methods of Crop Sensing Bélanger et al (2005) proposed the use of a multivariate indicator to detect nutrient deficiencies in crops and proposed for potato (Solanum tuberosum L.) that a multivariate indicator of nitrogen imbalance (MINI) based on reflectance and fluorescence indices would be useful. They used reflectance indices based on combinations of wavebands and simple ratios and found that MINI could correctly detect 70 % of the nitrogen-deficient plants and 90 % of the nitrogen-sufficient plants, and this method would be more rapid than the current method of tissue testing.…”

Section: Application To Other Cropsmentioning

confidence: 99%

Precision Nutrient Management and Crop Sensing

Hatfield

2015

Phenomics in Crop Plants: Trends, Options and Limitations

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Sensing of nutrient status in crop plants is achievable with remote sensing techniques because the nutrient concentration affects the reflectance spectrum. Techniques have been developed with both active and passive sensors engineered to detect the reflectance in specific wavebands and applied mainly to nitrogen status in maize and wheat canopies based on the observation that changes in spectral indices are correlated with plant biomass in the early stages of plant development, and if these deficiencies were due to nitrogen, then additions of nitrogen would allow the plant to achieve potential yield, if there is no other limitation to production, e.g., water or pests. There has been extensive research on the use of techniques which mainly use the normalized difference vegetative index (NDVI); however, the management tools rely on the use of a nitrogen-rich strip in the field. The positive aspects of improving nutrient management are the potential for improved precision management both spatially and temporally. Although, the current approaches have been evaluated for a number of crops in addition to maize and wheat, there remain some challenges in application of the methods which may potentially be overcome by evaluating other spectral methods which are more sensitive to canopy chlorophyll content and less sensitive to biomass. Application of technologies to improve nitrogen management has been shown to have a positive impact on reducing nitrogen application, improving yield of grain and sugar in sugar beets and sugarcane, increasing profitability, and decreasing the negative effect from excess nitrogen in the environment.

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Determination of a Multivariate Indicator of Nitrogen Imbalance (MINI) in Potato Using Reflectance and Fluorescence Spectroscopy

Cited by 14 publications

References 33 publications

Sensing crop nitrogen status with fluorescence indicators. A review

Sensing crop nitrogen status with fluorescence indicators. A review

Recent developments in fast spectroscopy for plant mineral analysis

Precision Nutrient Management and Crop Sensing

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