Minimum significant differences (MSD) in earthworm field studies evaluating potential effects of plant protection products

2017 ◽  
Vol 17 (6) ◽  
pp. 1706-1714 ◽  
Author(s):  
Thiago Oliveira Andrade ◽  
Matthias Bergtold ◽  
Patrick Kabouw
Keyword(s):  
Plant Protection ◽  
Plant Protection Products ◽  
Field Studies

scholarly journals On the Use of UAVs with a Slantrange Sensor System for Estimation of Crop Safety

2020 ◽  
Vol 45 ◽  
pp. 21-33
Author(s):  
Natalia Pasichnyk ◽  
Serhii Lienkov ◽  
Sergey Shvorov ◽  
Larysa Komarova ◽  
Dmytro Komarchuk ◽  
...  
Keyword(s):  
Crop Yields ◽  
Plant Protection ◽  
Computer Training ◽  
Plant Protection Products ◽  
Field Studies ◽  
Soil Conditions ◽  
Monitoring Methods ◽  
Computer Data ◽  
Distribution Of Stress ◽  
The Impact

The article addresses applied aspects of using UAVs for monitoring winter wheat crops to assess the aftereffects of herbicides remaining on the culture of the predecessor. The issue has a local specificity related to inconsistencies of plant cultivation technologies and the inadequate study of the impact of modern plant protection products in domestic soil conditions. Restoring the crop yields is possible by timely identification of the causes of stress, but the time for decision-making is limited. This time can be reduced by state-of-the-art monitoring technologies applied at industrial scale. Laboratory studies using phyto cameras and spectral and spectral-spatial monitoring methods unambiguously testified to the stress caused by the aftereffect of herbicides, but did not allow to establish clear criteria. Therefore, we conducted field studies using UAV-mounted Slantrange complex and analyzing the DJI Matrice 200 to define the distribution of stress areas on the field. It was found that the reliability of monitoring data can increased computer data processing and computer training in the search for correlation links between the distribution of stress plants in the field and the implementation of technological operations, terrain topography, etc.

scholarly journals The Effectiveness of Biological Products and Micronutrient Fertilizers use in Row Crops Cultivation

2021 ◽  
Vol 273 ◽  
pp. 01002
Author(s):  
Maria Belik ◽  
Svetlana Sviridova ◽  
Tatyana Yurina
Keyword(s):  
Economic Efficiency ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Field Studies ◽  
Comparative Assessment ◽  
Point Of View ◽  
Row Crops ◽  
Biological Products ◽  
Krasnodar Region ◽  
Production Conditions

The results of field studies of the use of biological products and microfertilizers in the cultivation of corn for grain and sunflower in the production conditions of the Krasnodar Region are presented. Indicators of a comparative assessment of economic and new schemes for the application of fertilizers and plant protection products from the point of view of agrotechnical and economic efficiency are given.

scholarly journals HYGIENIC EVALUATION OF INSECTICIDES CONTENT DYNAMICS IN PLANTS AFTER APPLICATION ON SOYA CROPS

2019 ◽  
Vol 15 (3-4) ◽  
pp. 69-75
Author(s):  
S.T. Omelchuk ◽  
A.V. Blagaya ◽  
M.V. Kondratyuk ◽  
T.V. Hyrenko
Keyword(s):  
Liquid Chromatography ◽  
High Performance ◽  
Plant Protection ◽  
Early Stage ◽  
Plant Protection Products ◽  
Field Studies ◽  
Gas Liquid Chromatography ◽  
Widespread Application ◽  
Limit Of Determination ◽  
Active Substances

Relevance. Taking into account the widespread application of plant protection products in soybean cultivation, there is a need for research aimed at hygienic evaluation of the potential danger of soybean crop contamination after pesticide and in particular insecticides application. Objective of the study is a hygienic evaluation of insecticides content dynamics in plants after application on soya crops. Materials and methods. Materials – active ingredients of the studied insecticidal preparations, soya plants (verdurous mass, beans and seeds). Full-scale in-field hygienic experiment, high-performance liquid chromatography, gas-liquid chromatography, statistical methods were used in the study. Results. The highest concentration of active substances was determined in green plants, if processing had been performed at an early stage of plant formation (acetamipride – 0.63 mg/kg, fenproximate – 0.41 mg/kg, thiamethoxam – 0.21 mg/kg). In the case of twice repeated applications, the largest amount of pesticides was determined in beans and seeds (alpha-cypermethrin – 0.51 mg/kg, chlorpyrifos, tebufenpyrad – 0.35 mg/kg). As the culture ripened and the formation of beans and seeds took place, the content of active substances gradually decreased and after 20-25 days residues were found at or below the limit of determination for the corresponding methods. Conclusions. The redidues of alpha-cypermethrin, bifenthrin, chlorpyrifos cypermethrin, tebufenpyrad, phenpyroximate, acetamiprid, thiamethoxam in plants, beans and soybean seeds gradually decreased and did not exceed established hygienic standards by the harvesting period in field studies. It is proved that if to follow the established hygienic and agrotechnical regulations for its application, the studied insecticides dissipate or decompose in crop plants during one vegetative season and do not pose a potential risk to the health of consumers.

Evaluation of Ecotoxicological Field Studies for Authorization of Plant Protection Products in Europe

2005 ◽  
Vol 11 (6) ◽  
pp. 1157-1176 ◽  
Author(s):  
Frank M. W. de Jong ◽  
B. J. W. G. (Hans) Mensink ◽  
C. Els Smit ◽  
Mark H. M. M. Montforts
Keyword(s):  
Plant Protection ◽  
Plant Protection Products ◽  
Field Studies

scholarly journals Statutory regulation of pesticide studies under conditions of world economy globalization: the international experience

2018 ◽  
Vol 82-83 (2-3) ◽  
pp. 85-91
Author(s):  
M.G. Prodanchuk ◽  
I.V. Lepeshkin ◽  
O.P. Kravchuk ◽  
A.P. Grynko ◽  
M.V. Velychko ◽  
...  
Keyword(s):  
Plant Protection ◽  
Plant Protection Products ◽  
Field Studies ◽  
Good Laboratory Practice ◽  
Main Element ◽  
Quality Of Data ◽  
Laboratory Practice ◽  
Association Agreement ◽  
Good Laboratory ◽  
Economy Globalization

This article explores aspects of EU-Ukraine Association Agreement, where an important part is a provision for the establishment of a free trade zone, which involves bringing Ukraine’s technical regulations and procedures in line with European ones. At the same time, special attention is paid to the requirements of harmonization of domestic statutory acts concerning placing of chemical products, including pesticides on the market, as well as quality and identity of their studies to assess the level of hazard to human health and environment. According to the authors, the main element of the identity of the quality of data for the assessment of chemicals is the use of the principles of Good Laboratory Practice in conducting studies, approved by the Organization for Economic Cooperation and Development (OECD). Tasks for solving these issues during field studies of pesticides have been outlined. Key words: OECD, plant protection products, Good Laboratory Practice, field studies, standard operating procedures.

scholarly journals Effect of the Application Date of Fertilizer Containing Silicon and Potassium on the Yield and Technological Quality of Sugar Beet Roots

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 370
Author(s):  
Arkadiusz Artyszak ◽  
Dariusz Gozdowski ◽  
Alicja Siuda
Keyword(s):  
Sugar Beet ◽  
Foliar Application ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Water Shortage ◽  
The European Union ◽  
Yield Increase ◽  
Time Of Application ◽  
Technological Quality

Water shortage and drought are a growing problem in Europe. Therefore, effective methods for limiting its effects are necessary. At the same time, the “field to fork” strategy adopted by the European Commission aims to achieve a significant reduction in the use of plant protection products and fertilizers in the European Union. In an experiment conducted in 2018–2020, the effect of the method of foliar fertilization containing silicon and potassium on the yield and technological quality of sugar beet roots was assessed. The fertilizer was used in seven combinations, differing in the number and time of application. The best results were obtained by treating plants during drought stress. The better soil moisture for the plants, the smaller the pure sugar yield increase was observed. It is difficult to clearly state which combination of silicon and potassium foliar application is optimal, as their effects do not differ greatly.

scholarly journals The Role of Source‐sink Dynamics in the Assessment of Risk to Non‐target Arthropods from the Use of Plant Protection Products

2021 ◽  
Author(s):  
Gavin Lewis ◽  
Axel Dinter ◽  
Charlotte Elston ◽  
Michael Thomas Marx ◽  
Christoph Julian Mayer ◽  
...  
Keyword(s):  
Plant Protection ◽  
Plant Protection Products ◽  
Source Sink

Measurements of the dermal exposure to bystanders from direct off‐crop drift during the application of plant protection products

2021 ◽  
Author(s):  
Christian J. Kuster ◽  
Nicola J. Hewitt ◽  
Clare Butler Ellis ◽  
Christian Timmermann ◽  
Thomas Anft
Keyword(s):  
Plant Protection ◽  
Plant Protection Products ◽  
Dermal Exposure

scholarly journals Field assessment of a pulse width modulation (PWM) spray system applying different spray volumes: duty cycle and forward speed effects on vines spray coverage

2021 ◽  
Author(s):  
Marco Grella ◽  
Fabrizio Gioelli ◽  
Paolo Marucco ◽  
Ingrid Zwertvaegher ◽  
Eric Mozzanini ◽  
...  
Keyword(s):  
Precision Agriculture ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Plant Protection ◽  
Plant Protection Products ◽  
Field Conditions ◽  
Advanced Technology ◽  
Real Field ◽  
Spray Application ◽  
Spray System

AbstractThe pulse width modulation (PWM) spray system is the most advanced technology to obtain variable rate spray application without varying the operative sprayer parameters (e.g. spray pressure, nozzle size). According to the precision agriculture principles, PWM is the prime technology that allows to spray the required amount where needed without varying the droplet size spectra which benefits both the uniformity of spray quality and the spray drift reduction. However, some concerns related to the effect of on–off solenoid valves and the alternating on/off action of adjacent nozzles on final uneven spray coverage (SC) have arisen. Further evaluations of PWM systems used for spraying 3D crops under field conditions are welcomed. A tower-shaped airblast sprayer equipped with a PWM was tested in a vineyard. Twelve configurations, combining duty cycles (DC: 30, 50, 70, 100%) and forward speeds (FS: 4, 6, 8 km h−1), were tested. Two methodologies, namely field-standardized and real field conditions, were adopted to evaluate the effect of DC and FS on (1) SC variability (CV%) along both the sprayer travel direction and the vertical spray profile using long water sensitive papers (WSP), and (2) SC uniformity (IU, index value) within the canopy at different depths and heights, respectively. Furthermore, the SC (%) and deposit density (Nst, no stains cm−2), determined using short WSP, were used to evaluate the spray application performances taking into account the spray volumes applied. Under field-controlled conditions, the pulsing of the PWM system affects both the SC variability measured along the sprayer travel direction and along the vertical spray profile. In contrast, under real field conditions, the PWM system does not affect the uniformity of SC measured within the canopy. The relationship between SC and Nst allowed identification of the ranges of 200–250 and 300–370 l ha−1 as the most suitable spray volumes to be applied for insecticide and fungicide plant protection products, respectively.

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