Efeitos de doses e épocas de aplicação de manganês via foliar no cultivo de soja convencional e em derivada transgênica RR

Carvalho, Everson Reis; Oliveira, João Almir; Neto, Jaime Costa; Silva, Cibele Aparecida Teixeira da; Ferreira, Valquíria de Fátima

doi:10.14393/bj-v31n2a2015-22286

Cited by 4 publications

(2 citation statements)

References 19 publications

(16 reference statements)

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“…Foliar application of Mn in doses above 350 g ha -1 did not influence the soybean yield in soil with a high nutrient content (FENNER et al, 2012). In contrast, higher yields were obtained in conventional soybean and its transgenic isoline, with foliar application of 150 g of Mn ha -1 , in soil with a low Mn content (CARVALHO et al, 2015). Another study demonstrated an increase in the Mn content in soybean leaves as a function of de Mn dose, regardless of its content in the soil and of the Mn source utilized (SÃO JOÃO, 2006).…”

Section: Introductionmentioning

confidence: 80%

Foliar application of manganese sources on glyphosate-resistant soybean in no-tillage

Sviech,

Sartori,

Ohse

2023

CLCS

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The glyphosate herbicide when applied in post-emergence in transgenic soybean can influence manganese (Mn) nutrition, with differentiated response when parceled out. The objective of this study was to evaluate the soybean response to Mn sources applied via leaf, in different phenological stages. Two experiments were carried out in areas with different Mn contents in the soil, using four Mn sources, sulphate and nitrate (experiment A), phosphite and Mn-EDTA (experiment B). Leaf application of Mn was done at V8 and V12 (150+150 g ha-1), V8 (single application at 300 g ha-1) and V12 (single application at 300 g ha-1). In experiment A, the plants treated with nitrate, in split application, had greater leaf area and height of insertion of the first pod. The nitric source resulted in higher soybean yield when applied at V12. On the other hand, sulphate provided plants with higher height at harvest and higher yield with split application. In experiment B, it was found a larger leaf area with application of Mn-EDTA in V12. The application of phosphite provided higher at harvest height when applied in V8 and higher leaf Mn content when applied in V12. The insertion of the first pod was lower in plants treated in V12 with phosphite or with Mn-EDTA and V8. The Mn-EDTA source resulted in higher yield of transgenic soybeans at a dose of 300 g ha-1, applied at V8 or V12, in no-till area with low Mn content in the soil.

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Section: Introductionmentioning

confidence: 80%

Foliar application of manganese sources on glyphosate-resistant soybean in no-tillage

Sviech,

Sartori,

Ohse

2023

CLCS

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“…It precedes a period of fast and constant dry matter accumulation, which increases the nutritional demand of the plant. In an evaluation of Mn accumulation in soybean grains, Carvalho et al (2015) observed a greater accumulation when Mn was applied at R3 instead of R1. This may be related to the period when grain reserves accumulate, because at R3, i.e., the beginning of pod formation, the application was closer to grain filling than at R1, i.e., the beginning of flowering.…”

Section: Grain Zn and Other Metabolite Levels Are Differentially Affementioning

confidence: 94%

Zinc biofortification strategies in food-type soybean cultivars

Oliveira¹,

Rezende²,

Barcelos³

et al. 2019

Aust J Crop Sci

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Reducing the risk of Zn-deficiency in humans by diversifying human diet and through agricultural interventions, such as agronomic biofortification, is still a major challenge. This greenhouse study used a number of biofortification strategies to investigate the effect of Zn fertilization on soybean grain cultivars intended for human consumption. A completely randomized 5×3 factorial design with four replications was used. The design included five different Zn application strategies as the main plot. These were (1) soil application; (2) foliar application at the vegetative growth stage 4 (V4) growth stage; (3) foliar application at vegetative growth stage 8 (V8); (4) foliar application at reproductive growth stage 4 (R4); and (5) a control (without Zn). Three soybean cultivars (BRS 213, BRSMG 790A, and BRS Favorita RR ®) were assigned as sub-plots. Zinc foliar fertilization at stage R4 was found to be the most efficient method for soybean cultivation when Zn availability in the soil was low. The cultivars had different Zn accumulation responses, and the cultivar BRSMG showed the highest Zn increase. Zinc fertilization increased the protein content in soybean grain, plant height, and the number of grains per plant.

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Comparison of sources with different solubilities for Mn supply and retranslocation along with soybean development

Migliavacca

Gomes

Ferraz‐Almeida

et al. 2021

Journal of Plant Nutrition

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Efeitos de doses e épocas de aplicação de manganês via foliar no cultivo de soja convencional e em derivada transgênica RR

Cited by 4 publications

References 19 publications

Foliar application of manganese sources on glyphosate-resistant soybean in no-tillage

Foliar application of manganese sources on glyphosate-resistant soybean in no-tillage

Zinc biofortification strategies in food-type soybean cultivars

Comparison of sources with different solubilities for Mn supply and retranslocation along with soybean development

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