COMPARISON BETWEEN CND NORMS AND BOUNDARY-LINE APPROACH NUTRIENT STANDARDS: Opuntia ficus-indica L. CASE

Blanco‐Macías, Fidel; Magallanes‐Quintanar, Rafael; Valdéz-Cepeda, Ricardo David; Vázquez-Alvarado, R. E.; Olivares‐Sáenz, Emilio; Gutiérrez-Ornelas, E.; Vidales-Contreras, Juan Antonio

doi:10.5154/r.rchsh.2009.15.030

Cited by 18 publications

(23 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The CNCR and DRIS are usually conducted separately, and then compared to each other to identify the most limiting nutrients (Wadt and Silva, 2010). Both CNCR and DRIS are biased and may lead to conflicting results when conducted separately (Parent et al, 2012), e.g., (Da Silva et al, 2004; Blanco--Macías et al, 2009; Huang et al, 2012; Wairegi and van Asten, 2012). …”

Section: Introductionmentioning

confidence: 99%

Plant ionome diagnosis using sound balances: case study with mango (Mangifera Indica)

Parent

2013

Front. Plant Sci.

View full text Add to dashboard Cite

Plant ionomes and soil nutrients are commonly diagnosed in agronomy using concentration and nutrient ratio ranges. However, both diagnoses are biased by redundancy of information, subcompositional incoherence and non-normal distribution inherent to compositional data, potentially leading to conflicting results and wrong inferences. Our objective was to present an unbiased statistical approach of plant nutrient diagnosis using a balance concept and mango (Mangifera indica) as test crop. We collected foliar samples at flowering stage in 175 mango orchards. The ionomes comprised 11 nutrients (S, N, P, K, Ca, Mg, B, Cu, Zn, Mn, Fe). Traditional multivariate methods were found to be biased. Ionomes were thus represented by unbiased balances computed as isometric log ratios (ilr). Soil fertility attributes (pH and bioavailable nutrients) were transformed into balances to conduct discriminant analysis. The orchards differed more from genotype than soil nutrient signatures. A customized receiver operating characteristic (ROC) iterative procedure was developed to classify tissue ionomes between balanced/misbalanced and high/low-yielders. The ROC partitioning procedure showed that the critical Mahalanobis distance of 4.08 separating balanced from imbalanced specimens about yield cut-off of 128.5 kg fruit tree−1 proved to be a fairly informative test (area under curve = 0.84–0.92). The [P | N,S] and [Mn | Cu,Zn] balances were found to be potential sources of misbalance in the less productive orchards, and should thus be further investigated in field experiments. We propose using a coherent pan balance diagnostic method with median ilr values of top yielders centered at fulcrums of a mobile and the critical Mahalanobis distance as a guide for global nutrient balance. Nutrient concentrations in weighing pans assisted appreciating nutrients as relative shortage, adequacy or excess in balances.

show abstract

Section: Introductionmentioning

confidence: 99%

Plant ionome diagnosis using sound balances: case study with mango (Mangifera Indica)

Parent

2013

Front. Plant Sci.

View full text Add to dashboard Cite

show abstract

“…Because nutrient ratios do not inform whether nutrient concentrations are simultaneously too high, too low or adequate [19], they are often used in combination with nutrient concentration ranges. However, combining the critical range approach and DRIS may lead to conflicting results [20][21][22], indicating that those approaches are noisy. Although there are D × (D-1)/2 possible dual ratios for a D-parts composition, the compositional matrix has rank D-1 [23].…”

Section: Introductionmentioning

confidence: 99%

Mineral Balance Plasticity of Cloudberry (<i>Rubus chamaemorus</i>) in Quebec-Labrador Bogs

Parent¹,

Parent²,

Hébert-Gentile³

et al. 2013

AJPS

View full text Add to dashboard Cite

The "ionome", or plant elemental signature, is the elemental composition of an organisms, that may vary with genotypic traits and phenotypic plasticity. Cloudberry (Rubus chamaemorus L.) is a circumboreal wild berry naturally growing in oligotrophic oceanic bogs of Quebec and Labrador. Our objective was to relate cloudberry stand productivity to the ionomes of female ramets and explore the cause of nutrient imbalance in low-performing stands. We analyzed 13 elements in female ramets collected in 86 natural sites where crop productivity varied widely. We computed orthogonally arranged balances reflecting plant stoichiometric rules and soil biogeochemistry. Balances were expressed as isometric log ratios (ilr) between ad hoc sub-compositions. Balances were synthesized into a Mahalanobis distance optimized based on receiving operating characteristics (ROC). The critical Mahalanobis distance was found to be 5.29 for cutoff berry yield of 3.8 g·m −2 with test performance of 0.88, as measured by the area under the ROC curve. Although past research on cloudberry focused mainly on the N/P ratio, this exploratory mineral balance analysis indicated that imbalance in the [P,N | S,C] and [Al | Nutrients] partitions appeared to be the factors limiting the most cloudberry productivity in the bogs. Some highly productive stands showed relatively high C fixation and K use efficiency. Due to the complexity of interactions, diagnosis should be conducted computing first a global imbalance index (Mahalanobis distance), then examining in the balance domain binary partitions departing most from reference, and finally appreciating relative shortage, sufficiency or excess of elements in the concentration domain.

show abstract

“…The boundary-line approach (BLA) was proposed by Walworth et al (1986) and has been adopted by many researchers such as Schnug et al (1996), Vizcayno-Soto and Cote (2004), Blanco-Macías et al (2009) Bhat and Sujatha (2013) and Ali (2018). They used the BLA to investigate nutrient sufficiency ranges for several crops.…”

Section: Boundary-line Approach and Averaging Approachmentioning

confidence: 99%

“…Nutrients interactions are usually measured in terms of plant growth response and changes in nutrients concentrations (Fageria 2001). Many researchers have used different agronomic parameters such as yield (Bhat and Sujatha 2013;Ali 2018), dry matter content (Blanco-Macías et al 2009), basal-area growth for trees (Vizcayno-Soto and Cote 2004;Quesnel et al 2006) and tree growth rate (René et al 2013) to diagnose and develop nutritional standards. As it is a relatively new crop, the growth response of haskap to different levels of nutrients is in itself not well documented and thus it is not known how important plant nutrition is for haskap, or which nutrients are most important.…”

Section: Introductionmentioning

confidence: 99%

Nutrient sufficiency levels for haskap (Lonicera caeruleaL.) using the boundary-line approach

2019

View full text Add to dashboard Cite

Adequate supply of plant nutrients is crucial for haskap plant growth and increased productivity. A study was carried out to determine the variability in haskap (Lonicera caerulea L. cv. Indigo Gem) plant characteristics in relation to soil and leaf tissue nutrient status. A total of 19 composite soil samples and corresponding plant leaf tissue samples were collected in 2016 from 12 locations in Nova Scotia. Plant parameters measured include growth rate, leaf size, leaf chlorophyll content, and visual observations. A boundary-line approach was used to determine nutrient sufficiency ranges in leaf tissues of 2.23%–2.96% for N, 0.22%–0.28% for P, 0.84%–1.32% for K, 1.63%–2.10% for Ca, and 0.14%–0.50% for Mg. Principal component and correlation analysis suggested a possible antagonistic interaction between leaf K and Mg. Negative associations were observed most frequently between Ca and Mg and other nutrients, especially K. Plant parameters such as bush volume, leaf size, and growth rate were closely related to soil and leaf K. Deficiencies in leaf tissue K and P were identified as potentially important factors limiting growth. Therefore, there is a need to adjust or balance the application of these nutrients. In conclusion, the sufficiency ranges derived can be used as a guiding principle in diagnosing the nutritional status of haskap cv. Indigo Gem on representative farms in Nova Scotia.

show abstract

COMPARISON BETWEEN CND NORMS AND BOUNDARY-LINE APPROACH NUTRIENT STANDARDS: Opuntia ficus-indica L. CASE

Cited by 18 publications

References 19 publications

Plant ionome diagnosis using sound balances: case study with mango (Mangifera Indica)

Plant ionome diagnosis using sound balances: case study with mango (Mangifera Indica)

Mineral Balance Plasticity of Cloudberry (<i>Rubus chamaemorus</i>) in Quebec-Labrador Bogs

Nutrient sufficiency levels for haskap (Lonicera caeruleaL.) using the boundary-line approach

Contact Info

Product

Resources

About

COMPARISON BETWEEN CND NORMS AND BOUNDARY-LINE APPROACH NUTRIENT STANDARDS: Opuntia ficus-indica L. CASE

Cited by 18 publications

References 19 publications

Plant ionome diagnosis using sound balances: case study with mango (Mangifera Indica)

Plant ionome diagnosis using sound balances: case study with mango (Mangifera Indica)

Mineral Balance Plasticity of Cloudberry (&lt;i&gt;Rubus chamaemorus&lt;/i&gt;) in Quebec-Labrador Bogs

Nutrient sufficiency levels for haskap (Lonicera caeruleaL.) using the boundary-line approach

Contact Info

Product

Resources

About

Mineral Balance Plasticity of Cloudberry (<i>Rubus chamaemorus</i>) in Quebec-Labrador Bogs