Weed Management in the Soybean Crop

Silva, Alexandre Ferreira da; Galon, Leandro; Aspiazú, Ignácio; Ferreira, Evander Alves; Concenço, Germani; Júnior, Edison Ulisses Ramos; Rocha, Paulo Roberto Ribeiro

doi:10.5772/54596

Cited by 8 publications

(5 citation statements)

References 88 publications

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“…Weeds would have competed with soybean for nutrients, water, and light, and this indirectly influenced the soybean growth and crop yield 28 . Organic soybean is grown with non‐chemical weed control methods, whereas pesticides are used to reduce the crop‐weed competition in the non‐organic soybean cultivation 29 .…”

Section: Resultsmentioning

confidence: 99%

“…Weeds would have competed with soybean for nutrients, water, and light, and this indirectly influenced the soybean growth and crop yield. 28 Organic soybean is grown with non-chemical weed control methods, whereas pesticides are used to reduce the crop-weed competition in the non-organic soybean cultivation. 29 Hence, non-organic legumes could have a higher nutrient uptake and could be able to maximize the photosynthetic rate, resulting in better growth and higher carbohydrates and protein storage.…”

Section: Resultsmentioning

confidence: 99%

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Nuclear magnetic resonance spectroscopy and liquid chromatography–mass spectrometry metabolomics studies on non‐organic soybeans versus organic soybeans (Glycine max), and their fermentation by Rhizopus oligosporus

et al. 2022

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Background Soybeans (Glycine max) are high in proteins and isoflavones, which offer many health benefits. It has been suggested that the fermentation process enhances the nutrients in the soybeans. Organic foods are perceived as better than non‐organic foods in terms of health benefits, yet little is known about the difference in the phytochemical content that distinguishes the quality of organic soybeans from non‐organic soybeans. This study investigated the chemical profiles of non‐organic (G, T, U, UB) and organic (C, COF, A, R, B, Z) soybeans (G. max [L.] Merr.) and their metabolite changes after fermentation with Rhizopus oligosporus. Results A clear separation was only observed between non‐organic G and organic Z, which were then selected for further investigation in the fermentation of soybeans (GF and ZF). All four groups (G, Z, GF, ZF) were analyzed using nuclear magnetic resonance (NMR) spectroscopy along with liquid chromatography–tandem mass spectrometry (LC–MS/MS). In this way a total of 41 and 47 metabolites were identified respectively, with 12 in common. A clear variation (|log1.5FC| > 2 and P < 0.05) was observed between Z and ZF: most of the sugars and isoflavone glycosides were found only in Z, while more amino acids and organic acids were found in ZF. An additional four metabolites clustered as C‐glycosylflavonoids were discovered from MS/MS‐based molecular networking. Conclusion Chemical profiles of non‐organic and organic soybeans exhibited no significant difference. However, the metabolite profile of the unfermented soybeans, which were higher in sugars, shifted to higher amino acid and organic acid content after fermentation, thereby potentially enhancing their nutritional value. © 2022 Society of Chemical Industry.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Nuclear magnetic resonance spectroscopy and liquid chromatography–mass spectrometry metabolomics studies on non‐organic soybeans versus organic soybeans (Glycine max), and their fermentation by Rhizopus oligosporus

et al. 2022

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“…This is often linked to their competitive ability because rapid growth requires the prompt and efficient conversion of resources into biomass. Thus, the yield crops are reduced and the agriculture costs increased, resulting in a decrease in farmer's income (Trognitz et al., 2016; Silva et al., 2013).…”

Section: Introductionmentioning

confidence: 99%

New perspectives for weeds control using autochthonous fungi with selective bioherbicide potential

Júnior

Scariot

Forte

et al. 2019

Heliyon

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The prospection of bioherbicides has been an alternative to weed control, aiming at mitigating chemical risks to human, animal and environmental health due to extreme use of synthetic herbicides. In the present study, various fungi were isolated from plants with symptoms of fungal diseases for bioherbicide purposes against weeds ( Urochloa plantaginea , Euphorbia heterophylla and Bidens pilosa ). Fungi isolated were identified by molecular methods and enzymatic products obtained by fungi fermentation (cellulase, lipase, peroxidase, and amylase) were quantified. Bioherbicide selectivity study was performed on crops (soybean and corn), as well as on resistant weeds. Among the isolated fungi, Fusarium oxysporum , Fusarium ploriferatum, and Trichoderma koningiopsis presented bioherbicide potential. T. koningiopsis , in particular, presented the highest effect on Euphorbia heterophylla (popular name - Mexican fire plant), causing up to 60% of foliar damage, without presenting phytotoxicity against corn crop. New perspectives for weeds control and their use in corn crops were prospected, considering the bioherbicide selectivity described in this study.

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“…They compete with crops for resources like nutrients, water, light and space. This competition is important mainly in the initial stages of crop development (Silva et al 2013).Weeds put enormous stress on its growth, especially during the first 30 days after sowing that results in the reduction of yield up to 68% (Gaikwad and Pawar, 2002). The Indian farmers most relay on repeated manual removal of weeds.…”

Section: Introductionmentioning

confidence: 99%

Effect of weed management and sulphur on weed dynamics, soybean (Glycine max) yield and associated quality traits

Meena

Nepalia

Singh

et al. 2017

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A field experiment was conducted during rainy seasons of 2011 and 2012 at Udaipur to evaluate the effect of weed control and sulphur on yield and quality of soybean [Glycine max (L.) Merrill]. The twenty eight treatment combinations comprising 7 weed management treatments (weedy check, pendimethalin 1.0 kg ha -1 pre-emergence, quizalofop-ethyl 50 g ha -1 and imazethapyr 100 g ha -1 post-emergence at 15 DAS, pendimethalin, quizalofop-ethyl and imazethapyr followed by hoeing and weeding at 30 DAS) in main plot and 4 rates of sulphur application (00, 20, 40 and 60 kg ha 1 ) in sub plot were laid out in split plot design with three replications. All weed control treatments reduced weed dry matter at harvest during both the years. Pendimethalin followed by hoeing and weeding at 30 DAS was significantly superior in reducing weed dry matter of broad-leaved, narrow-leaved and total weeds at harvest over rest of the treatments. All weed control treatments significantly enhanced straw and biological yield of soybean over weedy check. Pendimethalin followed by hoeing and weeding at 30 DAS produced significantly higher pooled seed (2168 kg ha -1 ), straw (3167 kg ha -1 ) and biological (5335 kg ha -1 ) yields compared to other treatments. Sulphur rates had no significant effect on weed dry matter at harvest. Across the years, increasing level of S application up to 40 kg ha -1 resulted in significantly increased straw yield, biological yield and harvest index of soybean. Increasing rate of sulphur application up to 40 kg ha -1 tended to significantly increase protein and oil yield.

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Weed Management in the Soybean Crop

Cited by 8 publications

References 88 publications

Nuclear magnetic resonance spectroscopy and liquid chromatography–mass spectrometry metabolomics studies on non‐organic soybeans versus organic soybeans (Glycine max), and their fermentation by Rhizopus oligosporus

Nuclear magnetic resonance spectroscopy and liquid chromatography–mass spectrometry metabolomics studies on non‐organic soybeans versus organic soybeans (Glycine max), and their fermentation by Rhizopus oligosporus

New perspectives for weeds control using autochthonous fungi with selective bioherbicide potential

Effect of weed management and sulphur on weed dynamics, soybean (Glycine max) yield and associated quality traits

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