The application of pesticides and mineral fertilizers in agriculture

Davydov, Roman; Sokolov, M. S.; Hogland, William; Glinushkin, A. P.; Markaryan, A. A.

doi:10.1051/matecconf/201824511003

Cited by 77 publications

(14 citation statements)

References 15 publications

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“…Crop protection is an important agronomic practice that helps ensure crop yield and quality, with pesticide usage being one of the more effective and widely employed crop-protection methods (Davydov et al, 2018). However, droplet drift, poor canopy penetration, and poor target deposition in pesticide spraying can lead to problems such as pesticide and water wastage, environmental pollution, and food safety concerns (Carvalho, 2006).…”

Section: Introductionmentioning

confidence: 99%

Resistance characteristics of broad-leaf crop canopy in air-assisted spray field and their effects on droplet deposition

Liu

Zhen

et al. 2022

Front. Plant Sci.

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Air-assisted spray technology is widely applied in high-efficiency pesticide applications. The resistance characteristics of the crop canopy reflect its energy dissipation effect on the assisted airflow, connecting the structure of the crop canopy, assisted airflow velocity, and droplet deposition effect. Using a common broad-leaf crop canopy as the research object, the resistance characteristics of the crop canopy in the air-assisted field were investigated in this study by performing theoretical analysis and wind tunnel tests. Further, the feasibility of using the resistance characteristics of the crop canopy was assessed to evaluate its droplet deposition effect. The results showed that under the conditions of different number of leaf layers and initial leaf azimuth angles, the canopy pressure drop experiences a non-linear increasing trend with increasing assisted airflow velocity and that its regression function conforms to the Darcy–Forchheimer function. Moreover, when the initial azimuth angles of single- and multi-layer leaves were 90°–270°, the change rate of the canopy pressure drop with airflow velocity was 7–9 m/s, and there was a critical wind speed. However, with an increasing number of leaf layers in the crop canopy and changes in the initial leaf azimuth angle, the corresponding changes between the maximum canopy pressure drop and resistance coefficient were non-linear. Thus, it is proposed that the resistance characteristics of multi-layer leaves cannot be quantified as the results of the linear superposition of the resistance characteristics of several single-layer leaves—that is, it should be regarded as a whole research object. Combined with the analysis of the influence of the crop canopy resistance on droplet deposition, it is considered that when the crop canopy has multiple leaf layers in the airflow direction, the existing air-assisted spray technology cannot guarantee droplet deposition and canopy penetration simultaneously.

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Section: Introductionmentioning

confidence: 99%

Resistance characteristics of broad-leaf crop canopy in air-assisted spray field and their effects on droplet deposition

Liu

Zhen

et al. 2022

Front. Plant Sci.

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“…Drug delivery in human airways in the form of aerosol particles is a conventional treatment for respiratory diseases (Augusto et al 2016;Yousefi et al 2017). Aerosol pollution of the atmospheric air is caused by pesticide application in agriculture (Davydov et al 2018;Gil and Sinfort 2005), industries (Emetere et al 2015), thermal power plants (Bhaskar et al 2017), forests fire (Zhu et al 2018), urban traffic (Wrobel 2000), volcanoes (Tam et al 2016), and aircraft engines (Testa et al 2013;Makridis and Lazaridis 2019).…”

Section: Introductionmentioning

confidence: 99%

Investigation of the particle size influence over the behavior of aerosol free jets based on CFD-Eulerian simulations

Kranzfeld

Mitre

Nichele

2020

BJD

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“…In this regard, the relevance of scientific research in the field of plant protection, reducing the pesticide load on agricultural landscapes for the production of organic and environmentally friendly products has increased many times. For the conditions of the Lower Volga region, this direction of research is new, since most of the enterprises use traditional systems of chemical protection [3].…”

Section: Introductionmentioning

confidence: 99%

The emergence and development of mycoses in short-day plants under conditions of long daylight hours

et al. 2020

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The relevance of the study of mycoses is increasing due to their widespread distribution. Field experiments were carried out on sites in the region with short daylight hours (Dagestan) and long daylight hours (Volgograd). Fungal diseases were investigated on crops with short daylight hours: cucumber, pepper, and cotton according to the methods generally accepted in phytopathology. The species composition of aboriginal and exotic infections was revealed. Each culture under conditions of long daylight hours is characterized by damage by 4-5 species of fungi. The manifestation of exotic infections is observed at the beginning of the growing season at the seedling stage. The role of the introduction of short-day plants to the northern regions in the spread of exotic species of pathogenic fungi is shown. The species composition of fungi on crops in the study areas was found to be identical. They belong to different biological groups, but saprotrophs, biotrophs and hemibiotrophs predominate. It was found that Fusarium lolii (Wm.G. Sm.) Sacc and Rhizoctonia solani Kuehn (on cotton) and Verticillium dahliae Kleb and Rhizoctonia solani J.G. moved to new areas together with seeds. Kuhn (on pepper). These species are capable of causing epiphytotics at the beginning of the growing season with a low natural infectious background. The accumulation of native species of infection in the lands adjacent to the fields during the cultivation period leads to the appearance of epiphytoties in the second half of the growing season. First of all, the assimilation apparatus, flowers, ovaries and fruits are affected.

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The application of pesticides and mineral fertilizers in agriculture

Cited by 77 publications

References 15 publications

Resistance characteristics of broad-leaf crop canopy in air-assisted spray field and their effects on droplet deposition

Resistance characteristics of broad-leaf crop canopy in air-assisted spray field and their effects on droplet deposition

Investigation of the particle size influence over the behavior of aerosol free jets based on CFD-Eulerian simulations

The emergence and development of mycoses in short-day plants under conditions of long daylight hours

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