scholarly journals STATUS AND ASPECTS OF STUDYING THE PESTICIDES INFLUENCE ON PRODUCTIVE PROCESSES AND ENVIRONMENTAL SAFETY

Author(s):  
F. S. Melnychuk ◽  
О. A. Marchenko ◽  
A. P. Shatkovskyi ◽  
L. M. Melnychuk ◽  
М. S. Retman ◽  
...  

Relevance of research. Ukraine's agriculture is one of the world leaders in production and export. The assortment of chemical plant protection products by status on 2019 which used in agriculture has more than two thousand preparations based on hundreds of active substances. In today's difficult climatic conditions, crop growing requires the use of a scientific approach, innovative technology and the introduction of new technologies. One of these is pestigation (irrigation pesticide application), which allows a uniform distribution and precise placement of chemicals independently of weather or field conditions. The selection of a modern assortment of chemicals that can be effectively used in pest control against certain harmful organisms is one of the actual directions of irrigation and requires research in different soil and climatic zones of Ukraine. The purpose of the study is to investigate the peculiarities of the pesticides application in integrated protection systems and the environmental safety of their use on the example of non-target objects. Materials and methods of research.  Methods of scientific analysis and synthesis, generalization of the results of field and laboratory analyzes were used in the study, which included: - phyto-expertise of seed and plant material; - rapid analyzes during the growing season of crops; - agrochemical analysis of soils; - detailed soil analysis; - study of environmental hazards of chemicals for aquatic, soil and terrestrial ecosystems: - detailed analysis of water. The application of plant protection products makes it possible to improve the ecological condition of agrocenosis, the conditions of the working area, while increasing crop productivity. Application methods of plant protection reagents with irrigation water and combined protection schemes for row crops, which are used in integrated crop protection systems, are presented. It has been established that one of the significant disadvantage of application plant protection reagents with irrigation water is the limitation of the pesticide treatment time. The developed combined scheme for the row crops protection provides for the prophylactic treatment of pesticide in a short time by the traditional way, depending on the phytosanitary condition of the crops, which provides a significant increase of yield compared to other methods of application. It has also been proven that effectiveness  of plant protection reagents is not the same against certain targets upon application different methods of pesticides treatment . Therefore, it is noted that for developing technological schemes for protecting crops against harmful organisms, it is necessary to thoroughly study the phytosanitary situation in the area where crops are located and to determine the targets for which pesticides are applied. The directions of research on the influence of pesticides on ecosystems are given, namely, the environmental safety of pesticides for the soil ecosystem (toxic effects on groundworms and microorganisms), the aquatic ecosystem (toxic effects on fish, daphnia, and algae) and the terrestrial ecosystem (toxic effects on birds and bees). It is noted that one of the methods to prevent the harmful effects of toxic substances on non-target objects of ecosystems is hygienic regulation of their use. Ecological and toxicological assessment of pesticides was carried out by determining their toxicity after a single injection in a sharp experiment, which allows determining the species susceptibility of a living organism to a chemical reagent. Probit’ analysis method was used to calculate the toxicity in the analysis of the various drugs effects which is the most exact at the present time. The influence of agrochemicals on the structural and functional changes in the microbial cenosis of the soil was determined by a quantitative analysis of agronomical valuable ecological and trophic and taxonomic groups of microorganisms, by assessing the rate of respiration of the soil by the amount of carbon dioxide released. The tendencies of search and fundamental research in the water management field and land reclamation were analyzed in order to improve modern approaches to plant growing.

2020 ◽  
Vol 23 (12) ◽  
pp. 36-45
Author(s):  
Fedir Melnychuk ◽  
Olha Marchenko ◽  
Andrii Shatkovskyi ◽  
Igor Kovalenko

Irrigation not only changes the ecological conditions of cultivation, but also modifies the existing phytopathocenoses and entomocomplexes, exerting a comprehensive and multi-vector effect, which requires significant changes in protection technologies, development of new methods of pest control. It is important to select a modern range of chemicals that can be effectively used in chemicalisation. The purpose of the study is to identify promising active substances of pesticides for drip irrigation and to develop schemes for their application. Field experiments to determine the effectiveness of certain groups of pesticides under drip irrigation were conducted in the Dry Steppe of Ukraine. The application of the studied drugs took place on the drip irrigation system. To plan research on the use of pesticides under drip irrigation, schemes have been developed to protect row crops: corn, tomatoes, and soybeans. Selected active substances, which are described by translaminar and acropetal movement on the plant, have a systemic nature of action and are highly effective when used in drip irrigation technologies. It is considered that one of the important disadvantages of application of plant protection products with irrigation water is the limitation of application periods by irrigation regimes. The highest efficiency against the main pathogens was observed with the combined method of pesticide application according to the developed schemes. This method involves the use of pesticides together with irrigation water and additional chemical treatment with conventional methods of fertilisation during the growing season. For its part, this allows for preventive treatments in a short time and adjust the timing of treatments depending on the phytosanitary situation


2020 ◽  
pp. 19-23
Author(s):  
А.А. Аутко ◽  
С.Н. Волосюк

Описаны основные агроприемы технологии возделывания арбуза в условиях Беларуси, представлен комплекс с. – х. машин, позволяющих возделывать арбуз без применения химических средств защиты растений в режиме экологизации земледелия. Полевые исследования выполнены в 2015–2018 годах на базе ОАО «Черняны» Малоритского района Брестской области. Планирование исследований, закладку и проведение опытов осуществляли по общепринятым методикам. Установлено, что при выращивании кассетной рассады арбуза важно место расположения семян при посеве. При посеве семян арбуза со смещением от центра ячейки кассеты происходит одностороннее развитие корневой системы рассады. При высадке такой рассады надземная часть растения отклоняется от центральной оси на 16,7–25,5°, рассада имеет смещенный центр тяжести, что снижает качество ее механизированной посадки. После высадки рассады с односторонне сформированной корневой системой, дальнейшее ее развитие происходит также в одном направлении. При возделывании арбуза с использованием такой рассады отмечено снижение урожайности на 11,8–12,2 т/га, что составило 28,2–29,2%. Это происходит в результате уменьшения количества товарных плодов на 23,0% и снижения их средней массы на 8,0–9,0%. Выявлено, что при подаче поливной воды в посадочную лунку глубиной 6 см в объеме 200 см 3 с одновременной посадкой рассады, объем увлажненной почвы составил 449,8 см 3, что в 5,6 раз больше, чем при внесении воды в борозду. При дозированной подаче воды в лунку в количестве 250 и 300 см 3, объем увлажнения почвы был соответственно 813,4 и 1416,1 см 3, что в 6,1 и 5,6 раз больше, чем при внесении воды в борозды. Этот способ внесения воды при высадке рассады позволяет наиболее рационально использовать поливную воду. Применение некорневых подкормок баковыми смесями препаратов Экосил, Экогум ФК и Экогум Комплекс при возделывании арбуза, способствует увеличению содержания хлорофилла в листьях на 16,5–22,0%, повышению устойчивости растений к неблагоприятным факторам среды, увеличению урожайности на 3,6–4,2 т/га (10,2–11,9%), улучшению качества продукции при полной экологической безопасности. The main agro-techniques of watermelon cultivation technology in Belarus are described, a complex of agricultural machines which allows to cultivate watermelon without using chemical plant protection products in the mode of greening agriculture is presented. Field research was carried out in 2015–2018 on the basis of JSC “Chernyany” Maloritskiy district of the Brest region. Research planning, setting up and conducting experiments were carried out according to generally accepted methods. It was established that when growing cassette seedlings of cassette, the location of seeds during sowing is important. When sowing watermelon seeds with a shift from the center of the cassette cell, one-sided development of the seedling root system occurs. When such seedlings are planted, the aerial part of the plant deviates from the central axis by 16,7–25,5°, the seedlings have a shifted center of gravity, which reduces the quality of its mechanized planting. After transplanting seedlings with a one-sidedly formed root system, its further development also occurs in one direction. When cultivating watermelon using such seedlings, a decrease in productivity by 11,8–12,2 t/ha was noted, which amounted to 28,2–29,2%. This occurs as a result of a decrease in the number of marketable fruits by 23,0%, a decrease in their average weight by 8,0–9,0%. It was revealed that when irrigation water was supplied to a 6 cm deep landing hole in a volume of 200 cm3with simultaneous planting of seedlings, the volume of moistened soil was 449,8 cm3, which is 5.6 times more than when water was added to the furrow. With a dosed supply of water to the well in the amount of 250 and 300 cm3, the volume of soil moistening was 813,4 and 1416,1 cm3, respectively, which is 6,1 and 5,6 times more than when water was added to the furrows. This method of applying water when planting seedlings allows the most efficient use of irrigation water. The use of foliar top dressing with tank mixtures of the preparations Ecosil, Ecogum PK and Ecogum Complex when cultivating watermelon, contributes to an increase in the content of chlorophyll in the leaves by 16,5–22,0%, increase plant resistance to adverse environmental factors, increase productivity by 3,6–4,2 t/ha (10,2–11,9%), improving product quality with complete environmental safety.


2021 ◽  
Vol 1 (1) ◽  
pp. 025-032
Author(s):  
Domenico Prisa

The aim of this work is to develop an innovative technology for the cultivation of Myrtillocactus geometrizans, introducing the use of Effective microorganisms and at the same time, limiting the use of mineral fertilizers, plant protection products and improving the physico-chemical and organoleptic characteristics of garambullos for consumption and processing. The trial showed a significant improvement in the agronomic parameters analysed on Myrtillocactus geometrizans plants treated with Effective microorganisms. In particular, there was an increase in plant height and circumference, vegetative and root weight, number of flowers and fruits, number and length of thornes in plants treated with microorganisms. In addition, the use of EM microorganisms showed a significant increase in total betalains, ascorbic acid, phenols and total flavonoids in garambullos. It was important to underline how the use of Effective microorganisms guaranteed, despite the reduction of irrigation and fertilisation by 50% in the growing medium, the same results in terms of agronomic parameters and fruit production and quality as the control with irrigation and fertilisation under optimal conditions. The application of Effective microorganisms in agricultural processing can therefore guarantee higher production standards, with a possible reduction in costs fertilizer and water. Particularly for those farms that want to focus on the production of ornamental and fruit cacti. Fruits obtained from growing plants treated with Effective microorganisms have a high antioxidant and nutraceutical potential, which is very important especially in this age where food is also a medicine.


Author(s):  
Ivan Voiku

The right way out of the crisis of the agro-based industries is the maximum use of the opportunities of scientific and technological progress and the orientation of the real economy to innovative development. One of the promising technologies of crop production is an innovative technology in potato growing, which provides for the co-culturing of potatoes with honey crops. Phacelia tanacetifolia (PhaceliatanacetifoliaBenth) is selected as honey crop, which is a valuable green manure. It allows to reduce the need for organic and mineral fertilizers, increases the ecological cleanness of products, favors the growth of potato yield, provides the additional honey yield. Phacelia significantly improves the soil structure, displacing a significant part of weeds, providing natural loosening of the soil, protection from drying out, from pests and parasites. The co-culturing of potatoes with phacelia protects the environment from the use of dangerous plant protection products. If the economic effect is defined as the difference between the profits of innovative and traditional technologies, then, according to preliminary calculations, the level of profitability of innovative technology in potato growing is 1.9 times higher, and the profit from 1 ha is 1.6 times higher compared with the traditional technology. Large-scale development of the proposed technology is hampered by the lack of potato planters and seed planters, which provide planting of potatoes and sowing seeds of honey crops simultaneously, in the Russian market and the markets of the European Union. An innovative technology - mounted seeder for potato planters was developed by the staff members of the Pskov State University. The article describes the main agro-technological requirements to this device. A general model and a kinematic scheme were developed to visualize the combination of the working elements of the potato planter and the mounted seeder. The developed model falls into the type of seed planters, which is designed to sowing in drills the seeds of honey crops (phacelia) in the furrow between potatoes at the time of the forthcoming closing of this furrow by soil, and can be used in agricultural engineering. Potential consumers of the proposed innovative technology in potato growing and the developed mounted seeder are farm enterprises and agricultural production cooperatives, which have small plots of land, use crop rotation systems in potato growing, and work for reducing costs and increasing the yield of potato cultivation.


2010 ◽  
Vol 55 (1) ◽  
pp. 103-122 ◽  
Author(s):  
Branislava Sivcev ◽  
Ivan Sivcev ◽  
Zorica Rankovic-Vasic

Pests and grapevine diseases in organic production are suppressed by preventive measures with a view to reducing the impact of the attack. Allowed substances acting on patogenous fungi, insects, mites and other harmful organisms are used, if appropriate. Insecticides of plant origin are used in the organic production of grapevine, as well as vegetable oils, powders and insecticidal soaps that are selective, with a narrow range of effects and of lower toxicity, as well as biological products. As a rule, such plant protection products require a more frequent application. Copper-based and sulphur-based fungicides are still leading products in suppressing grapevine diseases. Researches are directed to decrease the quantity of application and to find their replacement by also efficient fungicides. A special emphasis is put on researching the efficient fungicides for suppressing Botrytis bunch rot and factors causing grapevine wood diseases (Esca and Eutypa) in organic production. Along with copper and sulphur, different substances such as bicarbonates, plant extracts and oils, biological products being parasites, patogenous or diseases agent antagonists, and natural products such as milk and whey are applied in the organic production of grapevine.


Author(s):  
М.Н.Сертек,Ш.Ш. Бекенова,А.П.Науанова, З.Ш Сулейменова

According to the results of research on the phytosanitary status of rapeseed on ordinary Chernozem of the forest-steppe zone of the Akmola region, the species composition of pests was determined. Danadim power, Zolone 35% KE, Decis Expert were used against pests of this rapeseed. Indicators of biological effectiveness in the use of insecticides against pests ranged from 78-95%.The article discusses the biological and economic effectiveness of insecticides used against the main pests of rapeseed. Treatment of cruciferous rape beetle, rapeseed sawfly and cruciferous bug with Decis Expert insecticide (0.075 l/ha) showed high efficiency during the growing season. The use of plant protection products against a complex of harmful organisms showed that, depending on the prevailing climatic conditions, the yield increased to 1.3 c/ha, and the maximum - to 1.9 c/ha. Thus, according to the biological effectiveness of insecticides used against pests, the productDecis Expert showed high results in all pests. On the Cruciferous rape beetle it was 85.7%, in the turnip sawfly – 93.5%, in the cruciferous bug – 81.9%.


2021 ◽  
Vol 273 ◽  
pp. 01002
Author(s):  
Maria Belik ◽  
Svetlana Sviridova ◽  
Tatyana Yurina

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.


Author(s):  
A. Yu. Kekalo ◽  
V. V. Nemchenko ◽  
A. S. Philippov ◽  
N. Yu. Zargaryan ◽  
T. A. Kozlova

The article analyzes data on the effect of fungicidal and herbicidal preparations on grain quality and productivity of spring wheat. Timely and high-quality use of plant protection products from harmful organisms can improve not only the productivity of spring wheat, but often the quality of grain. In the years of mass spread of aerogenic infections, the use of fungicides in wheat crops can increase the protein content of the grain, as the leaves are longer and more productive photosynthesize. Under these conditions, the increase of the content of gluten on the use of systemic multi-component fungicide in the phase of the flag leaf was 3 %, in case of moderate development of disease was 2.4 %. The yield of flour increased by 5-7 %, and in some years there was an improvement in baking evaluation from satisfactory on the control variant to good on the variant with using a system fungicide. Correlation dependence of disease development and gluten content in grain was characterized as very strong and very strong inverse (r=0.88-0.98). In years with the strong development of leaf spots and the defeat of straw linear rust requires double use of fungicides to preserve the crop and grain quality. Long-term tests of post-emergence herbicides have shown that the use of these drugs in the framework of the regulations of their use did not worsen the quality of spring wheat grain, but also a significant stable positive effect on this indicator was not observed.


2021 ◽  
Vol 127 (4) ◽  
pp. 124-128
Author(s):  
Inna Tkachenko ◽  
Anna Antonenko

the issue of uncontrolled pesticides application is quite acute in the system of state control over the use of chemical plant protection products and is of a global nature. Indeed, the dangerous effect of chemicals is a potential toxic effect on professional and non-professional contingents. Therefore, the study and forecasting of possible risks of negative effects of pesticides is an integral part of their implementation in the practical activities of agricultural and private farms. The aim was to predict the occurrence of acute toxic effects on workers involved in the treatment of crops with formulation based on the new insecticide spiromesifen and a representative of avermectins, abamectin. Materials and methods. To calculate the coefficients of possible inhalation poisoning, the physic-chemical properties and consumption rates of the studied active ingredients of the Oberon Rapid 240 SC formulation, the methodical approaches from State Standard 8.8.1.002-98 wase used, and to determine the possibility of acute toxic effects, taking into account the selectivity of their action, we used the Sergeev’s S.G. method, taking into account two ways of potential entry of chemicals into the body – inhalation and dermal. Results. According to the "Hygienic classification of pesticides by the degree of hazard", spiromesifen and abamectin, as well as formulation based on them, belong to the Ⅳth hazard class according to the coefficient of possible inhalation poisoning, which was less than 0.5. In terms of inhalation and dermal coefficients of selectivity of action, the studied compounds were classified as substances with a high selectivity of action, except for the value of the coefficient of inhalation action of abamectin, which was less than 100 and made it possible to classify the compound as substances with a relatively low selectivity of action. Conclusions. The obtained data indicate a low possibility of acute poisoning when using formulations based on insecticides – spiromesifene and abamectin, as well as their relative safety in the occurrence of acute toxic effects when inhaled and in contact with the skin.


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