Nutrient uptake in sesame cultivars under cultivation in semiarid conditions

Ribeiro, Rayanne Maria Paula; Albuquerque, José Ricardo Tavares de; Pereira, C. C. A.; Pereira, L. A. F.; Júnior, Aurélio Paes Barros; Silveira, Lindomar María da; Grangeiro, Leílson Costa

doi:10.14393/bj-v35n1a2019-39468

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…As for the better performance acquired due to crop 2, in contrast to crop 1, the climatic conditions in the region during this period can be attributed mainly to the initial stages of crop development. Ribeiro et al (2019) studied the accumulation of nutrients in sesame cultivars under semiarid conditions and found that climatic factors influenced the accumulation of nutrients by plants, justifying the results obtained in this study. In this context, all of these factors allow the identification of cultivars and dosages that favor better acclimatization to dynamic environments in semiarid, with variable availability of K.…”

Section: Discussionsupporting

confidence: 79%

Nutritional efficiency in sunflower cultivars under dosages of potassium in semiarid region

Santos

Santos²,

Santos³

et al. 2023

Biosci. J.

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Potassium (K) participates in critical processes in sunflower cultivation, such as osmotic regulation and translocation of photosynthesis. However, the absorption or accumulation of this nutrient occurs differently owing to edaphoclimatic factors or between cultivars. The objective of this study was to evaluate the nutritional efficiency of sunflower cultivars as a function of different dosage K dosages in a semiarid region. To this end, two experiments were conducted in 2016 and 2017. The treatments consisted of five dosages of K at 0, 30, 60, 90, and 120 kg ha-1 K2O and four sunflower cultivars, Aguará 6, Altis 99, Multissol, and BRS 122. The experimental design was a randomized block with four replications and subdivided plots. The characteristics evaluated were agronomic efficiency, physiological efficiency, recovery efficiency, utilization efficiency, and accumulation of total K in the plant. Sunflower cultivars responded to K dosages in the two crops, with variations in efficiency parameters. Crop 2 showed better nutritional efficiency compared to crop 1. Aguará 6 showed greater nutritional efficiency than the other two crops. The use of dosages between 75 and 91 kg ha-1 of K2O provided better efficiency in K usage for the cultivars.

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Section: Discussionsupporting

confidence: 79%

Nutritional efficiency in sunflower cultivars under dosages of potassium in semiarid region

Santos

Santos²,

Santos³

et al. 2023

Biosci. J.

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“…Subsequently the results were converted to g ha -1 , multiplying the result by the plant population and then to kg ha -1 . The total dry mass of the shoot was the result of the sum of the dry mass of all constituent parts of the plant, expressed in kg ha -1 (Ribeiro et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The material was then packed in plastic bags for further chemical analysis of the nutrient content. To determine the accumulation of N, sulfuric digestion was performed, using the Kjeldahl method for quantification (Tedesco et al 1995;Ribeiro et al 2019). In order to determine the amount accumulated in each fraction of the plant, the concentration will be multiplied by the dry mass of said fraction.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of nitrogen use by sesame genotypes under brazilian semi-arid conditions

Santos¹,

Ribeiro²,

Lins³

et al. 2021

Biosci. J.

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Nitrogen (N) is an essential macronutrient for plant growth and rate applications can influence the performance of sesame, and when applied in excess can cause nitrogen loss in the environment, and consequently make the cost of production more costly to the producer. Therefore, the objective of this work was to evaluate the efficiency of nitrogen use by different cultivars of irrigated sesame seeds under the edaphoclimatic conditions of the northeastern semi-arid region in two harvests. The experiments were carried out from February to May (1st harvest) and from July to October (2nd harvest) in 2016. The treatments were arranged in a split plot scheme, in which the plots were the five nitrogen doses (0, 30, 60, 90 and 120 kg ha-1), and in the subplots, the four sesame genotypes (CNPA G2, CNPA G3, CNPA G4 and BRS Seda), the design was in randomized complete blocks with four replications. The nitrogen use efficiency assessments evaluated were: agronomic efficiency (AE), physiological efficiency (PE), agrophysiological efficiency (APE), recovery efficiency (RE) and efficiency of use (EU). The rate that provided the greatest efficiency of use was 30 kg ha-1 of N applied. The cultivar BRS Seda had greater efficiency of use in relation to the other cultivars studied. The crop that had better efficiency of use was the 2nd agricultural harvest.

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“…For a satisfactory production, an adequate field management is necessary, based on the requirements of sesame. Both nutrient requirements and the edaphoclimatic factors that can influence the crop should be taken into account for an efficient fertilization (Beltrão et al, 1991;Ribeiro et al, 2019;Zenawi & Mizan, 2019). A good fertilization management allows increasing, for example, the agricultural productivity and profitability of a crop; however, it also represents a significant cost to the farmer and increases investment risk when not properly carried out (Mesquita, 2014).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen fertilization on the agro-economic performance of sesame in the Brazilian semiarid

Santos

Souza

et al. 2021

Pesq. agropec. bras.

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The objective of this work was to evaluate the agro-economic performance of sesame (Sesamum indicum) under nitrogen fertigation in the semiarid region of Northeastern Brazil. The experimental design was randomized complete blocks with four replicates, and the treatments were arranged in a split-plot, where the plots were assigned five N rates (0, 30, 60, 90, and 120 kg ha-1) and the sub-plots were represented by four sesame genotypes ('CNPA G2', 'CNPA G3', 'CNPA G4', and 'BRS Seda'). The following variables were evaluated in two agricultural harvests in 2016: gross and net incomes, rate of return, and profit margin. In both harvests, there was a variation in production costs between N rates. In the second harvest, the highest values of net income were achieved with 120 kg ha-1 N fertigation, being: R$7,428.36 ha-1 for 'CNPA G2', R$8,630.74 ha-1 for 'CNPA G3', R$9,828.64 ha-1 for 'CNPA G4', and R$8,354.06 ha-1 for 'BRS Seda'. Increasing N rates provide an increase in the gross income, net income, rate of return, and profit margin for sesame producers. Fertigation with 120 kg ha-1 N provides the maximum agro-economic performance for sesame, whereas the 'CNPA G4' genotype shows the greatest agro-economic efficiency.

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Nutrient uptake in sesame cultivars under cultivation in semiarid conditions

Cited by 3 publications

References 10 publications

Nutritional efficiency in sunflower cultivars under dosages of potassium in semiarid region

Nutritional efficiency in sunflower cultivars under dosages of potassium in semiarid region

Efficiency of nitrogen use by sesame genotypes under brazilian semi-arid conditions

Nitrogen fertilization on the agro-economic performance of sesame in the Brazilian semiarid

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