&lt;b&gt;Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed

Vieira, Rogério Faria; Lima, Renan Cardoso; Prado, Adalgisa Leles do; Júnior, Trazilbo José de Paula; Soares, Bruno de Almeida

doi:10.4025/actasciagron.v38i4.30536

Cited by 4 publications

(34 citation statements)

References 16 publications

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“…This result suggests that differences in seed quality dependent on environmental conditions, which supports the findings of Vieira et al. (2016). With no N application, the higher yield obtained with plants grown from high‐Mo seeds, with a stand density of 11.6 ± 1.5 plants m −2 , compared with plants grown from low‐Mo seeds (12.1 ± 1.3 plants m −2 ) was a combination of higher pods per plant (6.56 ± 0.65 vs. 5.59 ± 1.05), seeds per pod (5.71 ± 1.31 vs. 3.91 ± 0.45), and 100‐seed weight (19.8 ± 1.14 vs. 18.7 ± 0.74 g).…”

Section: Resultssupporting

confidence: 91%

“…Based on experiences with common bean in which Mo improved yield when leaf‐sprayed before flowering (Amane et al., 1999; Vieira, Vieira, Cardoso, & Mosquim, 1998), a small rate of Mo was applied at 30 DAE. The decision to split Mo was based on a common bean study (Vieira, Lima, Prado, Paula Júnior, & Soares, 2016). The Mo solution was sprayed using a CO 2 sprayer equipped with two XR 11002 cone nozzles spaced 0.5 m apart with a flow rate of 225 L ha −1 at a pressure of 207 kPa.…”

Section: Methodsmentioning

confidence: 99%

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Seeds enriched with molybdenum improve cowpea yield in sub‐humid tropical regions of Brazil

et al. 2021

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The possible benefits of molybdenum (Mo)-enriched seeds for grain legumes have yet to be addressed in sub-humid tropical areas, where cowpea (Vigna unguiculata L.) is an important crop. In 2016, seeds with 0.014 (low), 0.674, or 1.987 (high) μg seed −1 of Mo were harvested from plants sprayed with 0, 250, or 850 g ha -1 of Mo, respectively. These seeds were combined with either Bradyrhizobium inoculation (with or without) in 2017 or nitrogen (0 or 60 kg ha −1 ) in 2018 and evaluated under small farmer management in Maranhão State, Brazil. Maximum nodules plant −1 in these trials was 5.2. In 2017, inoculation acted synergistically with Mo-enriched seeds by increasing nodule weight. Averaged across inoculation levels, plants originated from high-Mo seeds had 36% higher leaf N concentration than those raised from low-Mo seeds. Inoculation did not affect yield, but plants grown from high-Mo seeds yielded 42% more than those raised from low-Mo seeds. In 2018, seed Mo content did not affect nodule and yield where urea was applied. However, without urea, plants raised from high-Mo seeds had 3.5-fold greater values for nodule number and weight and yielded 70% more than those grown from low-Mo seeds. We conclude that using Moenriched seeds associated with Bradyrhizobium inoculation would improve cowpea N nutrition and yield in a sustainable way.How to cite this article: Barbosa EPA, Sodré DN, Braun H, Vieira RF. Seeds enriched with molybdenum improve cowpea yield in sub-humid tropical regions of Brazil.

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Section: Resultssupporting

confidence: 91%

Section: Methodsmentioning

confidence: 99%

Seeds enriched with molybdenum improve cowpea yield in sub‐humid tropical regions of Brazil

et al. 2021

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“…In previous studies, germination of seeds from plants sprayed with 240 (Leite et al, 2009) to 1000 (Vieira et al, 2010) g ha −1 of Mo was not affected (Vieira et al, 2010(Vieira et al, , 2016 or increased (Leite et al, 2009) in comparison with nonsprayed plants. In the study by Vieira et al (2016), Mo was applied at V4, R5 (bud initiation), and R7 (pod formation) growth stages. According to Vieira et al (2015), application of Mo at the seed filling (R8) growth stage should be avoided due to the risk of reducing seed physiological quality (germination and vigor).…”

Section: Core Ideasmentioning

confidence: 87%

“…In the other trial, seed vigor was not affected by the Mo rates. In addition, in the study of Vieira et al (2016), seed vigor was greater with two splits than with three splits in one of the trials. These few studies with inconclusive results indicate a need for more research regarding the difference between Mo rates and number of split applications for bean seed physiological quality.…”

Section: Core Ideasmentioning

confidence: 89%

“…A foliar application of 90 g ha −1 of Mo (BF + Mo90) was evaluated because this rate is generally used by farmers to correct Mo deficiency in the Zona da Mata region (Pessoa et al, 2000). A rate of 600 g ha −1 of Mo was used to obtain Mo-enriched seeds based on the studies of Vieira et al (2014Vieira et al ( , 2016. In the treatments BF + Mo600.2 to BF + Mo600.5, 600 g ha −1 of Mo was split into two to five foliar applications.…”

Section: Experimental Design and Crop Managementmentioning

confidence: 99%

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Split applications of molybdenum fertilizer on common bean increase molybdenum in seed

et al. 2023

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Common bean (Phaseolus vulgaris L.) plants sprayed with molybdenum (Mo) fertilizer produce Mo‐enriched seeds, which may increase yield in Mo‐poor soils. The challenge has been to produce Mo‐enriched seeds with less fertilizer. Split applications of Mo increase seed Mo content (SMoC), but the number of splits that maximize SMoC has not been studied sufficiently. In three sprinkler‐irrigated field trials, we evaluated the effects of split‐applied Mo fertilizer on SMoC and seed physiological quality. All treatments received NPK fertilizer at sowing. In two treatments, 69 kg ha−1 of urea‐N was top‐dressed or not applied. In six treatments, Na2MoO4·2H2O was foliar‐sprayed once at either 90 or 600 g ha−1 of Mo at the 4th trifoliolate leaf (V4) growth stage, or 600 g ha−1 was split equally at V4 and bud initiation (R5); V4, R5, and full flowering (R6); V4, R5, R6, and early pod formation (R7); or V4, R5, R6, and early and late R7 growth stages. Seed yield for each trial ranged from 3723 to 4621 kg ha−1. Site‐treatment interaction was significant for SMoC and seed germination (p < 0.001). SMoC ranged from 0.11 to 0.23 (only NPK‐fertilized), 1.81 to 3.31 (600 g ha−1, no split), and 5.22 to 6.29 μg (four splits). Four and five splits did not differ significantly for any variable. In two trials, seeds from 600 g ha−1 of Mo had a 3.9% higher germination than seeds from 90 g ha−1. In conclusion, SMoC increases as the number of splits increase up to four times. Additionally, Mo applied at 600 g ha−1 may improve seed germination rate.

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Chickpea production and soil chemical attributes after phosphorus and molybdenum fertilization

et al. 2018

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Chickpea is the third most cultivated legume in the world. In Brazil, cropping of this legume is recent and definitions of fertilizer management techniques are scarce. In this study, the objective was to evaluate chickpea (BRS Aleppo) production and soil chemical attributes with and without phosphorus fertilization and leaf-applied molybdenum. A randomized block experimental design was used, with four replications. A 2 x 5 factorial arrangement was used to evaluate production, consisting of two molybdenum fertilization management practices (with and without molybdenum) and five application rates of P2O5 (0, 60, 120, 180, and 240 kg ha-1) in the form of single superphosphate. Soil sampling for evaluation of soil chemical attributes in the crop row and between rows was also considered. Molybdenum fertilization brought about greater stem and aboveground dry matter. Phosphorus fertilization increased stem, leaf, and seed yield, yielding a maximum of 2.83 t ha-1 seed at the rate of 200 kg ha-1 P2O5. However, maximum agronomic efficiency (8.30) was observed with the addition of 150 kg ha-1 P. Soil in the crop row attained higher concentrations of P, K, H+Al, and P-rem and reduction in pH, Ca concentration, SB, T, and V compared to between rows. Phosphorus rates reduced soil pH and increased T and the P concentrations, though only in the plant row. Between the rows, no changes were observed in soil chemical attributes, indicating low mobility of P and the acidification capacity of superphosphate in alkaline soils.

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<b>Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed

Cited by 4 publications

References 16 publications

Seeds enriched with molybdenum improve cowpea yield in sub‐humid tropical regions of Brazil

Seeds enriched with molybdenum improve cowpea yield in sub‐humid tropical regions of Brazil

Split applications of molybdenum fertilizer on common bean increase molybdenum in seed

Chickpea production and soil chemical attributes after phosphorus and molybdenum fertilization

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