Impact of sensor‐controlled variable‐rate fungicide application on yield, senescence and disease occurrence in winter wheat fields

Tackenberg, Maria; Volkmar, Christa; Schirrmann, Michael; Giebel, Antje; Dammer, Karl‐Heinz

doi:10.1002/ps.4843

Cited by 9 publications

(6 citation statements)

References 21 publications

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“…Publications of recent years indicate that active research has been conducted on the use of fungicidal preparations to regulate plant metabolism and increase their stress tolerance to the action of biotic factors (Dicheng et al, 2018;Standish et al, 2018;Tackenberg et al, 2018). It has been proven that soybean plants with active symbiotic apparatus are more resistant to damage from a wide range of diseases, and that a clear combination of all measures aimed at optimizing the symbiosis process contributes to the formation of a powerful symbiotic apparatus, improving the phytosanitary condition of crops, improving soil fertility and obtaining high soybean yields with better quality indicators (Mikolaevsky et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Influence of fungicides on activities of enzymes of phenolic metabolism in the early stages of formation and functioning of soybean symbiotic apparatus

Mamenko

Khomenko

Kots

2019

Regul. Mech. Biosyst.

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We studied the effect of complex seed treatment with fungicides and rhizobium culture on the activity of phenolic metabolism enzymes – polyphenol oxidase and guaiacol peroxidase in the early stages of the formation and functioning of various symbiotic systems Glycine max – Bradyrhizobium japonicum. In the research we used microbiological, physiological, biochemical methods, gas chromatography and spectrophotometry. The objects of the study were selected symbiotic systems formed with the participation of soybean (Glycine max (L.) Merr.), Diamond variety, strains Bradyrhizobium japonicum 634b (active, virulent) and 604k (inactive, highly virulent) and fungicides Maxim XL 035 PS (fludioxonil, 25 g/L, metalaxyl, 10 g/L), and Standak Top (fipronil, 250 g/L, thiophanate methyl, 225 g/L, piraclostrobin, 25 g/L). Before sowing, the seeds of soybean were treated with solutions of fungicides, calculated on the basis of one rate of expenditure of the active substance of each preparation indicated by the producer per ton of seed. One part of the seeds treated with fungicides was inoculated with rhizobium culture for 1 h (the titre of bacteria was 108 cells in 1 ml). The other part of the fungicide-treated seeds was not inoculated by rhizobium culture. As a result of the research, it was revealed that an effective symbiotic system formed with the participation of soybean plants and the active strain rhizobia 634b is characterized by a high level of polyphenol oxidase activity and low guaiacol peroxidase in roots and root nodules in the stages of second and third true leaves. Such changes in the activity of enzymes occurred along with the formation of nodules which actively fixed the molecular nitrogen of the atmosphere. An ineffective symbiotic system (strain 604k) is characterized by an elevated level of polyphenol oxidase activity in the roots and guaiacol peroxidase in the root nodules, which is accompanied by activation of the process of nodulation. Treatment of soybean seeds with fungicides in an effective symbiotic system leads to a change in the activity of the enzymes of the phenolic metabolism, which induced adaptive changes in plant metabolism and growth of nitrogenase activity of the root nodules. The recorded changes in the activity of both enzymes for the action of fungicides in the ineffective symbiotic system can be considered as a kind of response of the plant to the treatment and were observed along with the reduction of the processes of nodulation into the stage of the third true leaf.

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Section: Discussionmentioning

confidence: 99%

Influence of fungicides on activities of enzymes of phenolic metabolism in the early stages of formation and functioning of soybean symbiotic apparatus

Mamenko

Khomenko

Kots

2019

Regul. Mech. Biosyst.

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“…Frontiers in Agronomy | www.frontiersin.org with current weather conditions and subplot specific pathogen risk. Digital farming and data analysis tools, such as nonuniform, sensor-controlled spraying (Tackenberg et al, 2018), can help to pursue site-and variety-specific fungal disease management, while optimizing the farm resource allocation (labor, machinery, etc.). Such tools must be adapted in such a manner that they are profitable for farmers and yet facilitate the achievement of certain standards.…”

Section: Discussionmentioning

confidence: 99%

Resistance Breeding Increases Winter Wheat Gross Margins–An Economic Assessment for Germany

Lüttringhaus¹,

Zetzsche²,

Wittkop³

et al. 2021

Front. Agron.

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Improved wheat varieties have ameliorated our food production. Intensive cropping systems, as in Germany, achieve very high grain yields and thus contribute greatly to global food security. As diseases, especially fungal pathogens, pose major threats in winter wheat production, disease management is crucial to uphold high production levels and to avoid economic losses. Yet, the economic value of breeding varieties with increased resistance to fungal pathogens has not been analyzed with comprehensive data. Our analysis fills this gap by quantifying the economic effects of 50 years of resistance breeding for winter wheat production in Germany. Based on field trials and agronomic production data, we analyze how resistances have influenced the economic profitability of the crops. Thereby, we can isolate the pure breeding-induced effects of increased resistance to fungal pathogens, which cause leaf and stripe rust, powdery mildew, and Fusarium head blight. We calculated the gross margins of 176 varieties according to nitrogen and fungicide applications in field trials. Regression models show that resistance breeding had a strong positive and statistically significant effect on the gross margins of the varieties. In comparison, the specific meta-environment of the season had a larger effect, while the effect of high nitrogen as well as fungicide treatments was lower. The gross margin increased over time along with higher resistances. Simultaneously, the difference in gross margins between the fungicide-treated and untreated variants decreased, indicating an increased contribution of resistances to yield stability. Resistances have increased gross margins greatly, as the health levels of varieties remain high without the need for fungicide applications and thus production costs can be saved. We conclude that resistance breeding has increased the economic profitability and sustainability of crop production due to a reduction in the costs for fungicides. In fields of farmers, these positive effects of resistance breeding can be fully realized by an optimal variety choice and a variety- and situation-specific disease management. Such an agronomic practice would not only further improve winter wheat gross margins but also mitigate some of the pressures on agricultural productions, such as reduced disease management options and adverse climate change impacts.

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“…In trials conducted by the ATB in 5 farmers cereal fields from 2014 to 2016 by using this non-contact camera sensor on average 22 % (min. 1 %, max 45 %) fungicide savings (Tackenberg et al 2016(Tackenberg et al , 2017 compared to uniform spraying were obtained.. In the approach of fungicide application according to Leaf Area Index or biomass the whole field is sprayed with the fungicide.…”

Section: Introductionmentioning

confidence: 98%

Farm Machinery and Processes Management in Sustainable Agriculture

2023

Lecture Notes in Civil Engineering

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EU forestry does not currently have automatic planters, hence the project proposes to develop an innovative technology in which the key role will be played by an autonomous planter designed for establishing forest cultures and afforestation of former farmland and reclaimed areas with the use of seedlings with a covered root system (grown in container nurseries). The device will have a self-levelling traction system, a control system with a satellite navigation module to support autonomous navigation and planting site selection, a mechanism of planting spot preparation, a planting unit, an intelligent robotic arm to feed seedlings from containers to the planting unit according to a given algorithm, a container storage unit with an automated feeder, a drive unit with an electro-hydraulic control system, a control module, and a wireless remote control system. The autonomous planter will significantly reduce the cost and machine inputs during establishing forest cultures and afforestation of former farmland and reclaimed areas with the use of seedlings with a covered root system, and thus perfectly fits into the assumptions of agriculture 4.0.

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Impact of sensor‐controlled variable‐rate fungicide application on yield, senescence and disease occurrence in winter wheat fields

Cited by 9 publications

References 21 publications

Influence of fungicides on activities of enzymes of phenolic metabolism in the early stages of formation and functioning of soybean symbiotic apparatus

Influence of fungicides on activities of enzymes of phenolic metabolism in the early stages of formation and functioning of soybean symbiotic apparatus

Resistance Breeding Increases Winter Wheat Gross Margins–An Economic Assessment for Germany

Farm Machinery and Processes Management in Sustainable Agriculture

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