Nutritional reference values for <i>Opuntia ficus</i>‐<i>indica</i> determined by means of the boundary‐line approach

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

doi:10.1002/jpln.200900147

Cited by 37 publications

(30 citation statements)

References 29 publications

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“…1 As for P, the highest values of MCh were observed in the classes 4 and 5 (0.4-1.7 g kg -1 ) ( Table 2). The upper limit of MCh is close to that of SR, although its LLi, far lower, coincide with the NCRIz (1.0 g kg -1 ) ( Table 3), which is three times lower than what was obtained from a soil with high P content, 40.5 mg dm -3 (Blanco-Macías et al, 2010). Thus, SR is considered more suitable for evaluating the nutritional status of 'Gigante' forage cactus pear for P than MCh, as the latter is a method that exhibits a low LLi, deficient class (Table 1).…”

Section: Resultssupporting

confidence: 59%

“…Sufficiency ranges and critical levels have been determined for forage cactus pear in Mexico (Blanco-Macías et al, 2010); though, it is necessary to look into the interactions between genotype, environment, and management under semiarid conditions of Bahia state. Therefore, we aimed to establish the sufficiency ranges of macronutrients in tissues of cladodes for the evaluation of the nutritional status of forage cactus pear.…”

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confidence: 99%

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Establishment of Sufficiency Ranges to Determine the Nutritional Status of ‘Gigante’ Forage Cactus Pear—Macronutrients

Alves¹,

Donato²,

Donato³

et al. 2019

JAS

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Determining the sufficiency range of essential macronutrients in plants is of utmost importance for successfully diagnosing the crop’s nutrient demands, thereby improving fertilizer recommendations. The aim of this study was to establish the macronutrients ranges in the cladodes for the evaluation of the nutritional status of ‘Gigante’ cactus pear. Macronutrients contents of cladodes and dry matter yield in 72 plots were used. The experiment consisted of four cattle manure rates (0, 30, 60, and 90 Mg ha-1 year-1), three spacings (1.00 × 0.50, 2.00 × 0.25, and 3.00 × 1.00 × 0.25 m) and two production cycles, arranged in a 4 × 3 × 2 factorial in randomized blocks, and three replicates. Sufficiency ranges of plots with dry matter ≥ 19.93 Mg ha-1 cycle-1 were determined as well as the mathematical chance for plots with dry matter ≥ 23.75 Mg ha-1 cycle-1 and the critical level. The sufficiency ranges, critical level and mathematical chance are, respectively, for each nutrient in g kg-1: N, 12.7-18.5; 14.4; 15.5-19.7; P, 1.0-1.8; 1.0; 0.4-1.7; K, 31.6-44.1; 31.9; 33.7-39.7; Ca, 23.2-32.8; 24.6; 25.0-29.6; Mg, 9.5-14.3; 10.2; 7.4-14.0; and S, 1.1-2.0; 1,1; 1.0-1.8. The mathematical chance model was adequate for all macronutrients except for P and Mg which showed low sufficiency range values. Sufficiency range and critical level of nutrients are useful for diagnosing macronutrient contents and improving the nutritional status of ‘Gigante’ forage cactus pear.

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Section: Resultssupporting

confidence: 59%

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confidence: 99%

Establishment of Sufficiency Ranges to Determine the Nutritional Status of ‘Gigante’ Forage Cactus Pear—Macronutrients

Alves¹,

Donato²,

Donato³

et al. 2019

JAS

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“…It was assumed that there is no strong correlation between f VPD and f temp , even though VPD was estimated based on temperature (Pleijel et al, 2002). These mathematical functions were parameterized using a boundary line technique, which was first introduced by Webb (1972), and has been widely used in plant and soil science models (Bhat and Sujatha, 2013;Blanco-Macías et al, 2010;Lewandowski and Schmidt, 2006;Topp et al, 2013;Vizcayno-Soto and Côte, 2004). It was based on the principle that biological materials have an upper response limit to a given variable (Imhoff et al, 2010).…”

Section: Stomatal Conductance Measurements and Modelingmentioning

confidence: 99%

Concentration- and flux-based ozone dose–response relationships for five poplar clones grown in North China

Dearn

Gao

Yue

et al. 2015

Environmental Pollution

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a b s t r a c tConcentration-and flux-based O 3 doseeresponse relationships were developed for poplars in China. Stomatal conductance (g s ) of five poplar clones was measured to parameterize a Jarvis-type multiplicative g s model. The maximum g s and other model parameters varied between clones. The strongest relationship between stomatal O 3 flux and total biomass was obtained when phytotoxic ozone dose (POD) was integrated using an uptake rate threshold of 7 nmol m À2 s À1 . The R 2 value was similar between flux-based and concentration-based doseeresponse relationships. Ozone concentrations above 28 e36 nmol mol À1 contributed to reducing the biomass production of poplar. Critical levels of AOT 40 (accumulated O 3 exposure over 40 nmol mol À1 ) and POD 7 in relation to 5% reduction in total biomass for poplar were 12 mmol mol À1 h and 3.8 mmol m À2 , respectively.

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“…Changes in crop management, such as population density, combination of spacings and doses of organic (Donato et al, 2014) or chemical fertilization can interfere with the use of radiation and nutritional status of the plant (Galizzi et al, 2004;Silva et al, 2012), with consequent increment in the photosynthetic rates, growth and yield (Blanco-Macías et al, 2010), and in the extraction/exportation of nutrients. Ramos et al (2011) concluded that the spacing influences phytomass production and rainfall use efficiency, and the increments are higher for increasing densities .…”

Section: Introductionmentioning

confidence: 99%

Extraction/exportation of macronutrients by cladodes of ‘Gigante’ cactus pear under different spacings and organic fertilization

Donato

Silva

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThis study aimed to evaluate the extraction/exportation of macronutrients by cladodes of 'Gigante' cactos pear, grown under diferente spacings and doses of cattle manure applied to the soil 600 days after planting. Twelve treatments were used, three spacing (1.00 x 0.50; 2.00 x 0.25 and 3.00 x 1.00 x 0.25 m) and four doses of cattle manure (0, 30, 60 and 90 Mg ha -1 year -1 ), arranged in a 3 x 4 factorial scheme in randomized blocks, with three replicates. The extraction/exportation of N, P, K, S, Ca and Mg was determined, whose respective values for maximum dry matter production (21.8 Mg ha -1 ), with a cattle manure dose of 71.8 Mg ha -1 year -1 were: 287.9, 46.2, 924.2, 40.7, 609.7 and 249.1 kg ha -1 , 600 days after planting. The amounts extracted/exported from N, P, K and Ca varied independently with spacings and manure doses, while Mg and S were dependent on the interaction between factors. The doses of manure are insufficient to meet the demand of extracted/exported K, Ca and Mg. The increments in the doses promote greater nutrient uptake by the plant. The extracted/exported macronutrients in largest amounts are: K, Ca, N, Mg, P and S, in this order. Extração/exportação de macronutrientes por cladódios de palma forrageira 'Gigante' sob diferentes espaçamentos e adubação orgânica R E S U M O Objetivou-se, com este trabalho, avaliar a extração/exportação de macronutrientes por cladódios colhidos da palma forrageira 'Gigante' , cultivada sob diferentes espaçamentos e doses de esterco bovino aplicadas ao solo aos 600 dias após o plantio. Foram utilizados 12 tratamentos, três espaçamentos (1,00 x 0,50; 2,00 x 0,25 e 3,00 x 1,00 x 0,25 m) e quatro doses de esterco bovino (0; 30; 60 e 90 Mg ha -1 ano -1 ), dispostos em fatorial 3 x 4 num delineamento em blocos casualizados e três repetições. Determinaram-se a extração/exportação de: N, P, K, S, Ca e Mg cujos respectivos valores para máxima produção de matéria seca (21,8 Mg ha -1 ), com uma dose de esterco de 71,8 Mg ha -1 ano -1 foram: 287,9; 46,2; 924,2; 40,7; 609,7 e 249,1 kg ha -1 , aos 600 dias após plantio. As quantidades extraídas de N, P, K e Ca variaram de forma independente com espaçamentos e doses de esterco enquanto as de Mg e S foram dependentes da interação entre os fatores. As doses de esterco são insuficientes para atender às quantidades extraídas/exportadas de K, Ca e Mg. Os incrementos nas doses promovem maior extração de nutrientes pela planta. Os macronutrientes extraídos/ exportados em maior quantidade são: K, Ca, N, Mg, P e S, nesta ordem.

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Nutritional reference values for Opuntia ficus‐indica determined by means of the boundary‐line approach

Cited by 37 publications

References 29 publications

Establishment of Sufficiency Ranges to Determine the Nutritional Status of ‘Gigante’ Forage Cactus Pear—Macronutrients

Establishment of Sufficiency Ranges to Determine the Nutritional Status of ‘Gigante’ Forage Cactus Pear—Macronutrients

Concentration- and flux-based ozone dose–response relationships for five poplar clones grown in North China

Extraction/exportation of macronutrients by cladodes of ‘Gigante’ cactus pear under different spacings and organic fertilization

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