Fertilização de plantas ornamentais pelo método requerimento-suprimento: proposição de técnica experimental

Hugo, Alvarez V. Víctor; Santos, André Ferreira; Santos, Gláucio Leboso Alemparte Abrantes dos; Matta, P. M. da

doi:10.1590/s0100-06832014000200018

Cited by 6 publications

(2 citation statements)

References 1 publication

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“…The Prr by a specific extractant allows us to estimate the doses of P to be applied in the soil to increase the soil P availability until to reach the Pcl (Alvarez V et al, 2014). Therefore, it is important to know whether the Prr is influenced by soil characteristics that reflect its P buffer capacity.…”

Section: Shoot Dry Matter Yield and Phosphorus Recovery Ratesmentioning

confidence: 99%

Interpretation of soil phosphorus availability by Mehlich-3 in soils with contrasting phosphorus buffering capacity

Reis¹,

Álvarez²,

Durigan³

et al. 2020

Revista Brasileira De Ciência Do Solo

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Increasingly rational use of phosphate fertilizers by agriculture is important, especially in Brazil, due to its importance for global food security and its high dependence on phosphate fertilizers for crop production. Thus, correlation and calibration researches with soil available phosphorus (P) extractants to improve the recommendation and the use of P are extremely important. Our objectives were (i) to determine soil P recovery rates and critical levels by the extractants Mehlich-1 (M1), Mehlich-3 (M3), and Ion Exchange Resin (RTI); (ii) to adjust predictive models of P recovery rates and critical levels for each extractant, as a function of soil properties related to the soil P buffer capacity, and (iii) to adjust the an interpretation table of soil P availability by M3 taking into account soil P buffer capacity indices. A pot experiment under greenhouse condition was conducted, in which the treatments were generated by the combination of a factorial 12 × 6, being 12 soil samples collected at a layer of 0.00-0.20 m, and six doses of P. The experimental units were constituted by plastic pots with capacity for 2.0 dm³ of soil, in which four hybrid corn plants (Zea mays L.) were cultivated for 45 d. The experimental design was a randomized complete block with four replicates. After cultivation, soil samples were collected from each experimental unit, and the determination of soil available P was performed by the extractants. The remaining P and the clay content were the soil properties that best correlated with the P recovery rates and P critical levels in the soil by the M1 and M3. The IER did not show sensitivity to soil P buffer capacity. The M3 had a discontinuous loss of extraction capacity with increasing soil P buffer capacity. Therefore, it is recommended the use of M3 as P extractant in soils with different characteristics, but a measure of soil P buffer capacity such as remaining P or clay content have to be used.

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Section: Shoot Dry Matter Yield and Phosphorus Recovery Ratesmentioning

confidence: 99%

Interpretation of soil phosphorus availability by Mehlich-3 in soils with contrasting phosphorus buffering capacity

Reis¹,

Álvarez²,

Durigan³

et al. 2020

Revista Brasileira De Ciência Do Solo

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“…To improve recommendation tables, researchers have developed nutritional balance models that estimate the nutrient application rate based on plant nutritional requirements, yield, and nutrient supply by the soil and other sources for eucalyptus (Barros et al, 1995), banana (Oliveira et al, 2005), soybean (Santos et al, 2008), pineapple (Silva et al, 2009), coconut (Rosa et al, 2011), ornamental plants (Alvarez V. et al, 2014), melon (Deus et al, 2015), and carrot (Dezordi et al, 2015). The advantages of nutritional balance models include the ease of incorporating new research results, which contributes to evolution and improvement of the recommendations.…”

Section: Introductionmentioning

confidence: 99%

Modeling in the Adjustment of Fertilization Recommendation through Leaf Analysis in Fertigated ‘Prata’ Banana

Deus

Neves

Soares

et al. 2018

Rev. Bras. Ciênc. Solo

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In banana cultivation, fertilization recommendations are almost exclusively based on soil chemical analysis, without considering leaf analysis and expected yield, which can help in the adjustment of fertilization programs. The aim of this study was to develop a method to recommend macronutrient fertilization rates which integrates data on leaf analysis, soil chemical analysis, and yield. Yield, soil chemical analysis, and leaf analysis data of fertigated plantations of 'Prata' banana were obtained for the first and second halves of the years from 2010 to 2015. Yield was correlated with soil organic matter (SOM) and soil contents of macronutrients (P, K, Ca, and Mg) to obtain the critical level (CL Nu i). Then, leaf nutrient contents were plotted on a dispersion graph as a function of soil contents using the method of Quadrant Diagram of the Plant-Soil Relationship (QDpsR). Based on leaf analysis, recommended rates were simulated for four plots and compared with rates recommended by other methods. The values of CL Nu i obtained were 13.2 g dm-3 for SOM; 97.5 and 91.5 mg dm-3 for P and K; and 2.71 and 0.61 cmol c dm-3 for Ca 2+ and Mg 2+. The rates recommended based on leaf analysis diverged from the recommendations of Ferticalc ®-Bananeira and the Recommendation Table for Banana Fertilization; in plots for which recommendations were made, there were higher rates of P 2 O 5 and Ca and lower rates of K 2 O. However, in most cases, applications were not recommended, either because contents in leaves and soil were adequate or because yield was being limited by non-nutritional factors or, if nutritional, related to other nutrient(s). Leaf analysis satisfactorily adjusts the recommended rates of nutrients and has advantages if incorporated in nutritional balance models.

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Optimizing nutrient solution for vegetative growth of Dendrobium Tubtim Siam and Phalaenopsis Taisuco Swan through plant tissue nutrient balance estimation

Costa,

Mantovani,

de Mello Prado

2024

BMC Plant Biol

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Background Orchids are grown without soil in many regions of the world, but there is a lack of studies to define the balanced and adequate nutrient solution for their cultivation, mainly in the vegetative growth phase. Therefore, this paper aims to evaluate the optimal concentration of the nutrient solution based on the proposal by Hoagland and Arnon (1950) in the vegetative growth phase capable of increasing the nutrient contents, growth, and dry matter production of Dendrobium Tubtim Siam and Phalaenopsis Taisuco Swan. In addition, this paper aims to estimate a new nutrient solution from the optimal nutrient contents in the dry matter of these orchid species to be used in the vegetative growth phase. Results Nutrient contents, growth, and dry matter production increased as the nutrient solution concentration increased up to an average concentration of 62 and 77% for D. Tubtim Siam and P. Taisuco Swan, respectively. We found that the Hoagland and Arnon solution presented a group of nutrients with concentrations above the requirement for P. Taisuco Swan (nitrogen, phosphor, calcium, and sulfur) and D. Tubtim Siam (phosphor, calcium, magnesium, and sulfur), while other nutrients in the solution did not meet the nutritional demand of these orchid species, inducing nutritional imbalance in the vegetative growth phase. Conclusion We conclude that using a balanced nutrient solution created specifically for each orchid species in vegetative growth might favor their sustainable cultivation by optimizing the use of nutrients in the growing medium.

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Fertilização de plantas ornamentais pelo método requerimento-suprimento: proposição de técnica experimental

Cited by 6 publications

References 1 publication

Interpretation of soil phosphorus availability by Mehlich-3 in soils with contrasting phosphorus buffering capacity

Interpretation of soil phosphorus availability by Mehlich-3 in soils with contrasting phosphorus buffering capacity

Modeling in the Adjustment of Fertilization Recommendation through Leaf Analysis in Fertigated ‘Prata’ Banana

Optimizing nutrient solution for vegetative growth of Dendrobium Tubtim Siam and Phalaenopsis Taisuco Swan through plant tissue nutrient balance estimation

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