Acúmulo e exportação de macronutrientes em beterraba sob diferentes manejos de fertirrigação e salinidade

Silva, Alexsandro Oliveira da; Silva, Ênio Farias de França e; Klar, Antônio Evaldo

doi:10.1590/1678-4499.505

Cited by 7 publications

(18 citation statements)

References 13 publications

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“…The observed results determined the order of accumulation by beet, with K > N > P > B, in agreement with the findings other authors (SEDIYAMA et al, 2011;CARDOSO et al, 2017;SILVA;SILVA;KLAR, 2017). Of the total accumulated nutrients, the tuberous root participated with 66% of N, 53% of P, 39% of K and 72% of B.…”

Section: Resultssupporting

confidence: 91%

“…In an experiment with the hybrid beet 'Boro', Cardoso et al (2017) observed, at harvest, N total accumulation of 177.3 mg in the shoot and 481.8 mg in the tuberous root. P was accumulated in a smaller amount among macronutrients, in agreement with that observed by Silva, Silva and Klar (2017). K was the nutrient accumulated in greater quantity by the shoot and tuberous root of beet (Table 3), corresponding to a total of 305 kg ha -1 of K and equivalent to 367.5 kg ha -1 of K 2 O.…”

Section: Resultssupporting

confidence: 85%

“…Among nutrients, due to the functions described by Hawkesford et al (2012), potassium (K) is an important element to increase the crop yield. In beet plants, it is the nutrient demanded in greater quantity (CARDOSO et al, 2017;SILVA;SILVA;KLAR, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Response of Beet to Doses of Potassium in Oxisol With High Content of the Nutrient1

et al. 2020

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Fertiliser recommendation tables for beet culture have been prepared based on the response to potassium (K) doses in soils with a low nutrient content. However, there is little research that evaluates potassium fertilisation for beet crops in soil with high K content, a condition commonly found, which allows a better understanding of the crop’s response to the nutrient. The objective was to evaluate the response of beet to doses of K in Oxisol with a high K content. The experiment was carried out in the field, with an experimental design in randomised blocks, in a 4 x 2 factor scheme with four replications. The doses of K were 0, 60, 120 and 180 kg ha-1 of K2O, and the cultivars were ‘Early Wonder’ and ‘Kestrel’. At 50 days after transplantation, the levels of nitrogen (N), phosphorus (P), K and boron (B) in the diagnostic leaf were evaluated. Beet yield and accumulation of these four nutrients were analysed at harvest. The doses of K positively influenced the leaf content of K; however, without an effect on beet yield. Therefore, in Oxisol with a high K content available, potassium fertilisation is not recommended. To maintain soil fertility at a high potassium content, fertilisation with 162 and 126 kg ha-1 of K2O is recommended for ‘Early Wonder’ and ‘Kestrel’, respectively; doses equivalent to the quantities exported by the beet root.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 85%

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Response of Beet to Doses of Potassium in Oxisol With High Content of the Nutrient1

et al. 2020

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“…2A), there was a decrease of 1.14% per unit increase in the electrical conductivity of the water, reduction of 5.81% when compared to the plants irrigated with ECw 0.3 dS m -1 . This fact is possibly promoted by the concentration of salts in the soil solution, which makes it difficult for water to be absorbed by plants due to the greater energy expenditure to maintain its turgidity [21]. Physical and chemical characteristics of the substrate used in the experiment ................................................ Chemical characteristics ............................................... .................................................…”

Section: Resultsmentioning

confidence: 99%

Effect of Nitrogen Fertilization on the Growth and Quality of Tamarind Seedlings Irrigated with Saline Water

Fátima

Silva

Nóbrega

et al. 2019

JEAI

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Aims: The objective of this work was to evaluate the effect of nitrogen fertilization on the production of Tamarindus indica L. seedlings irrigated with saline water. Study Design: A randomized complete block design was used in a 4 x 4 factorial scheme, whose factors were the electrical conductivity levels of the irrigation water. Place and Duration of Study: The work was conducted under protected environment conditions (greenhouse) at the Federal University of Campina Grande, Center for Agro-Food Sciences and Technology, Campus of Pombal-PB, Brazil, in the period from January and March 2017. Methodology: Effects of doses of 0, 100, 200 and 300 mg of nitrogen (N) dm-3 and electrical conductivity levels of the irrigation water (ECw) (0.3, 2.1, 3.7 and 5.2 dS m-1) on growth of Tamarindus indica L. have been studied. Results: The growth of the seedlings was reduced by the increase of the electrical conductivity of the irrigation water, however, irrigation with ECw water of 2.15 dS m-1, promotes acceptable reductions of 10% in the morphology of the tamarind tree. Conclusion: The use of nitrogen fertilization with urea did not attenuate the deleterious effects of irrigation water salinity or promoted improvements of the quality of the tamarind seedlings.

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“…Arugula production can be influenced by several factors linked to management strategies, as inappropriate irrigation blade, climate, cultural practices, pest and disease control, and, mainly, availability of nutrient for the plant due to adequate crop fertilization is one of the most important attributes for crop productivity [3]. In this sense, the knowledge of the number of nutrients accumulated in plants enables the adoption of strategies in the crop fertilization program [25].…”

Section: Introductionmentioning

confidence: 99%

Growth and accumulation of macronutrients in arugula

Morais¹,

Freire²,

Santos³

et al. 2020

IJAERS

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In Brazil, arugula is a vegetable often consumed in salads because it provides a flavorful option when paired with blander lettuces and because it is considered rich in vitamins A and C, potassium, sulfur and iron. However, several aspects of fertilization management for this crop must be studied further. Thus, the objective of this work was to determine the growth and accumulation of macronutrients within arugula, under field conditions. The experiment was conducted in four parcels (vegetable beds) with dimensions of 5.0 x 0.2 x 1.3 m, located within an experimental area of 54 m² (6.0 x 9.0 m). The Arugula cv. Cultivated, with seedlings produced in a protected environment. Standard fertilization was performed with 160 kg ha -1 of N, 340 kg ha -1 of P2O5, 160 kg ha -1 of K2O, 20 kg ha -1 of S and 1 kg ha -1 of B. The treatments were constituted by different collection times at 7, 14, 21, 28, 35 and 42 days after the arugula seedlings transplanting. Between 18 and 38 days after the transplanting of the seedlings, a significant increment in the accumulation of dry matter occurred. In the period between 20 and 30 days after the transplanting, the greatest demand for most macronutrients occurred. The order of macronutrient accumulation by arugula at 42 days was as follows: K > N >Ca> P > Mg > S.

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Acúmulo e exportação de macronutrientes em beterraba sob diferentes manejos de fertirrigação e salinidade

Cited by 7 publications

References 13 publications

Response of Beet to Doses of Potassium in Oxisol With High Content of the Nutrient1

Response of Beet to Doses of Potassium in Oxisol With High Content of the Nutrient1

Effect of Nitrogen Fertilization on the Growth and Quality of Tamarind Seedlings Irrigated with Saline Water

Growth and accumulation of macronutrients in arugula

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