scholarly journals THE CHEMICAL PROTECTION OF AGRICULTURAL CROPS: METHODS AND TECHNICAL MEANS

2021 ◽  
Author(s):  
R.S. Sopin ◽  
◽  
А.V. Palapin ◽  
Keyword(s):  
Agricultural Crops ◽  
Chemical Protection ◽  
Full Volume

The article studies the main methods and technical means of protecting agricultural crops using agricultural techniques. We described the main methods and technical means of chemical protection. We reviewed some recommendations for spraying. In addition, we made a short comparison between full-volume sprayers and ultralow-volume sprayers.

Influence of agrometeorological component of the project environment on the duration of works in chemical protection projects of agricultural crops

2021 ◽  
Vol 12 (3) ◽  
pp. s138-s149
Author(s):  
Anatolii Тryhuba ◽  
Volodymyr Ivanyshyn ◽  
Vitalii Chaban ◽  
Iryna Mushenyk ◽  
Olena Zharikova
Keyword(s):  
Agricultural Crops ◽  
Design Environment ◽  
Management Decisions ◽  
Chemical Protection ◽  
Managerial Decisions ◽  
Project Environment ◽  
Distribution Laws ◽  
Definition Of ◽  
The Impact

The analysis of the state of science and practice of making managerial decisions in agricultural production projects is performed. The expediency of substantiation of the influence of the agrometeorological component of the project environment on the duration of works in the projects of chemical protection of agricultural crops is substantiated. The approach to the definition of fund of works time performance in projects of chemical protection of crops taking into account changing events of an agrometeorological component of the project environment is offered. It is based on the use of statistical data of agrometeorological stations in the regions where these projects are implemented. The peculiarity of this approach is that it provides for the formation of databases and knowledge for planning work in projects of chemical protection of agricultural crops based on the characteristics of a given project environment. To do this, computer simulation is used, which provides a systematic consideration of many variable agrometeorological components of the design environment and their impact on the limitation of the time allocated for work. This improves the quality of the database for forecasting the events of the components of the project environment, as well as gaining knowledge that underlies the acceleration of management decisions in projects of chemical protection of crops. It is established that the duration of agrometeorological determined daily fund of time for work in projects of chemical protection of agricultural crops is variable both during the life cycle of the project and in certain periods of its implementation, which is reflected by the relevant distribution laws. Further research on the planning of chemical protection projects for agricultural crops should be conducted to justify new methods and models of management decisions that will take into account the impact of changing events of the agrometeorological component of the project environment on the time and content of work in these projects.

scholarly journals Hydrodynamics of formation of a microdispersed spray by the cup rotary atomizer

2020 ◽  
Vol 176 ◽  
pp. 04009
Author(s):  
Ivan Sidorenko ◽  
Peter Dogoda ◽  
Alexander Mashkov
Keyword(s):  
Research Topic ◽  
Liquid Jet ◽  
Agricultural Crops ◽  
Single Drop ◽  
Atmospheric Air ◽  
Research Results ◽  
Chemical Protection ◽  
Working Element

This article is devoted to the study of the movement of a single drop inside an air-liquid jet formed by a cup atomizer. The relevance of the research topic is proved. The problem, which has been identified, is about using modern fan sprayers for chemical protection of agricultural crops, in particular, orchards and vineyards. As for mechanical spraying, the process of movement of the droplet inside the torch, the trajectory of droplet flight, as well as the dependence of these indicators on the parameters of the rotary atomizers are currently very little studied. Therefore, this article considers the laws describing the movement of one droplet on the surface of the rotating working element and one droplet flight in atmospheric air after escape from the surface of the rotary atomizer’s cup. Research results are presented as the equations describing the dependence of the torch boundaries on the parameters of the rotary cup atomizer.

Rational nature management - the basis for increasing the stability of agricultural crops for diseases and pests

2019 ◽  
Vol 325 (5) ◽  
pp. 65-69
Author(s):  
I.A. Trofimov ◽  
◽  
V.M. Kosolapov ◽  
L.S. Trofimova ◽  
E.P. Yakovleva ◽  
...  
Keyword(s):  
Nature Management ◽  
Agricultural Crops ◽  
Rational Nature ◽  
The Stability

Developments in 3D Echocardiography

2009 ◽  
Vol 5 (2) ◽  
pp. 10 ◽  
Author(s):  
Jose Luis Zamorano ◽  
Keyword(s):  
3D Echocardiography ◽  
Resonance Imaging ◽  
Clinical Tool ◽  
3D Images ◽  
Processing Power ◽  
2D Echocardiography ◽  
Automated Quantification ◽  
Heart Cycle ◽  
Functional Mechanisms ◽  
Full Volume

3D echocardiography (3DE) will gain increasing acceptance as a routine clinical tool as the technology evolves due to advances in technology and computer processing power. Images obtained from 3DE provide more accurate assessment of complex cardiac anatomy and sophisticated functional mechanisms compared with conventional 2D echocardiography (2DE), and are comparable to those achieved with magnetic resonance imaging. Many of the limitations associated with the early iterations of 3DE prevented their widespread clinical application. However, recent significant improvements in transducer and post-processing software technologies have addressed many of these issues. Furthermore, the most recent advances in the ability to image the entire heart in realtime and fully automated quantification have poised 3DE to become more ubiquitous in clinical routine. Realtime 3DE (RT3DE) systems offer further improvements in the diagnostic and treatment planning capabilities of cardiac ultrasound. Innovations such as the ability to acquire non-stitched, realtime, full-volume 3D images of the heart in a single heart cycle promise to overcome some of the current limitations of current RT3DE systems, which acquire images over four to seven cardiac cycles, with the need for gating and the potential for stitch artefacts.

SPECIES, HOST RANGE, AND IDENTIFICATION KEY OF WHITEFLIES OF BOGOR AND SURROUNDING AREA

2019 ◽  
Vol 18 (2) ◽  
pp. 127
Author(s):  
Purnama Hidayat ◽  
Denny Bintoro ◽  
Lia Nurulalia ◽  
Muhammad Basri
Keyword(s):  
Host Range ◽  
Host Plants ◽  
Ornamental Plants ◽  
Identification Key ◽  
Agricultural Crops ◽  
Surrounding Area ◽  
Aleurodicus Dispersus ◽  
Agricultural Plants ◽  
Surrounding Areas ◽  
Forest Plants

Species identification, host range, and identification key of whiteflies of Bogor and surrounding area. Whitefly (Hemiptera: Aleyrodidae) is a group of insects that are small, white, soft-bodied, and easily found on various agricultural crops. Whitefly is a phytophagous insect; some species are important pests in agricultural crops that can cause direct damage and can become vectors of viral diseases. The last few years the damage caused by whitefly in Indonesia has increased. Unfortunately, information about their species and host plants in Indonesia, including in Bogor, is still limited. Kalshoven, in his book entitled Pest of Crops in Indonesia, published in the 1980s reported that there were 9 species of whitefly in Indonesia. The information on the book should be reconfirmed. Therefore, this study was conducted to determine whitefly species and its host plants in Bogor and its surroundings. Whiteflies is identified based on the ‘puparia’ (the last instar of the nymph) collected from various agricultural plants, ornamental plants, weeds, and forest plants. A total of 35 species of whiteflies were collected from 74 species and 29 families of plants. The collwcted whiteflies consist of four species belong to Subfamily Aleurodicinae and 31 species of Subfamily Aleyrodinae. The most often found whitefly species were Aleurodicus dispersus, A. dugesii, and Bemisia tabaci. A dichotomous identification key of whiteflies was completed based on morphological character of 35 collected species. The number of whitefly species in Bogor and surrounding areas were far exceeded the number of species reported previously by Kalshoven from all regions in Indonesia.

Muradov RusIMPROVING THE TECHNOLOGY OF DRIP IRRIGATION OF AGRICULTURAL CROPS

2020 ◽  
Vol 1 (2) ◽  
pp. 40-49
Author(s):  
Rustam Muradov ◽  
◽  
Shoxrux Azizov
Keyword(s):  
Drip Irrigation ◽  
Agricultural Crops

Problems and prospects of land reclamation in the non-Chernozem zone of Russia

2020 ◽  
Author(s):  
V.A. Shevchenko ◽  
Keyword(s):  
Agricultural Production ◽  
Land Reclamation ◽  
Agricultural Practice ◽  
Agricultural Crops ◽  
Agricultural Lands ◽  
High Level

The non-black earth zone of Russia is a zone of guaranteed harvest of major agricultural crops. However, at present, the potential of the reclaimed lands of the Non-Black Earth Region remains largely unrealized. In world agricultural practice, land reclamation combined with the use of modern technical means is an important factor in the development of agriculture, a condition for a consistently high level of agricultural production. Therefore, in all countries, reclaimed lands are given a special status, and the necessary amount of reclamation fund of agricultural lands is created.

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