scholarly journals Preparations used in the fight against wireworms and aphids on potato

2019 ◽  
pp. 32-36
Author(s):  
O. V. Dolzhenko ◽  
M. N. Shorokhov ◽  
O. A. Krivchenko
Keyword(s):  
Russian Federation ◽  
New Products ◽  
Growing Season ◽  
The State ◽  
Effective Protection ◽  
North West ◽  
The North ◽  
West Region ◽  
The Russian Federation ◽  
State Registration

In the North-West region of the Russian Federation, studies have been conducted to study the biological efficacy of combination products in the fight against wireworms and aphids - carriers of viruses on potatoes. Studied the effectiveness of new products not yet included in the State catalog of pesticides: Bombard, CS (130+90+60 g/l), Wibrans Max, CS (262.5+25+25 g/l), as well as combined insecticides - by spraying during the growing season - Dexter, KS (115+106 g/l) and Eforia, KS (106+141 g/l). These preparations provide effective protection of potatoes against wireworms and aphids and can be recommended for use after their state registration and inclusion in the State Catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation.

scholarly journals Study of collection accessions of the fiber flax gene pool according to the main agronomic characters in the conditions of the North-West of the Russian Federation

2021 ◽  
Vol 22 (4) ◽  
pp. 518-530
Author(s):  
Aleksander D. Stepin ◽  
Michail N. Rysev ◽  
Tamara A. Ryseva ◽  
Svetlana V. Utkina ◽  
Nadezhda V. Romanova
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Russian Federation ◽  
Growing Season ◽  
Early Maturity ◽  
North West ◽  
Fiber Flax ◽  
The North ◽  
Fiber Yield ◽  
The Russian Federation

Studies on the evaluation of 20 fiber flax accessions of Russian, Chinese, Japanese and Polish breeding from the collection of the Federal Research Center "All-Russian Institute of Plant Genetic Resources named after N. I. Vavilov" (VIR) were conducted in 2018-2020 in order to identify the sources of agronomic valuable characters that are adaptive to the conditions of the North-West of the Russian Federation. The HTC for the growing season in 2018 was 0.95, in 2019 – 1.53 and in 2020-1.1. Abiotic conditions had a greater influence on the formation of plant height (59.6 %), seed yield (60 %) and fiber content in plants (55.1 %), but the influence of the genotype on these indicators was also significant. The effect size of the genotype prevailed in the formation of fiber yield (67.2 %) and the duration of the growing season (52.8 %). The variability of characters was the greatest according to the seed yield (V = 6.7-33.9 %), disease resistance (V = 3.1-26.5 %); the lowest one was noted according to the duration of the growing season (V = 4.4-9.7 %). For the rest characters, it was at the level of up to 20 %. A valuable and plastic source material was identified for practical breeding aimed at creating new varieties with the following characters: early maturity – K-8680 (Russia), K-8782, K-8783 (Japan), which matured 3 days earlier than the Dobrynya standard and had a growing period of 67 days; productivity – K-8651, K-8760, K-8795, K-8797, K-8874, K-8877 (China), which significantly exceeded the fiber yield of the Dobrynya variety (241 g/m2) by 8-14 %. There were identified genotypes significantly exceeding the standard: according to the plant height (82 cm) ‒ K-8681 (Russia), K-8751, K-8794, K-8795, K-8754 (China) ‒ by 12-25 %; yield of flax straw (241 g/m2) – K-8681 (Russia), K-8751, K-8794, K-8795, K-8874, K-8880 (China) – by 25-40 %; seed yield (149 g/m2) ‒ K-8680 (Russia), K-8772 (Poland), K-8782 (Japan) – by 10-23 %; resistance to lodging (9 samples) and diseases (7 samples). Use of the identified gene sources in breeding practice should accelerate the creation of varieties that provide high and stable yields.

scholarly journals The Influence of Abiotic and Anthropogenic Factors on the Formation of Potato Yield

2021 ◽  
Vol 247 ◽  
pp. 01041
Author(s):  
Alexander Shpanev ◽  
Vasiliy Smuk
Keyword(s):  
Russian Federation ◽  
Plant Protection ◽  
Weather Conditions ◽  
Potato Yield ◽  
Anthropogenic Factors ◽  
Mineral Fertilizers ◽  
North West ◽  
The North ◽  
West Region ◽  
The Russian Federation

Data on the influence of abiotic and anthropogenic factors on the formation of crop productivity are important for the productive process management system. This work examines the results of a long-term study of the influence of abiotic (weather conditions) and anthropogenic (mineral fertilizers, an integrated plant protection system) factors on the formation of potato productivity in the North-West region of the Russian Federation. Weather conditions were the most significant (23.6%) among all the factors affecting the potato yield in the North-West region of the Russian Federation. Integrated plant protection and mineral nutrition had approximately equal contribution to the yield, i.e. 16.6% and 18.6% accordingly. In 2012–2020, additional potato yield reached 56–65% on average under the influence of mineral fertilizers, depending on their dose, and 37–56% under the influence of integrated plant protection Program. The combined influence of these two factors, taking into account the effect of interaction, led to an increase of the potato yield by 114-157% as compared with the actual yield on unfertilized and unprotected control (143 centners per hectare).

scholarly journals Epizootic Risk of Trematodiases in Aqueous Dwellers of the North-West Region of the Russian Federation

2019 ◽  
Vol 8 (4) ◽  
pp. 10869-10871
Keyword(s):  
Freshwater Fish ◽  
Coastal Zone ◽  
Russian Federation ◽  
Gulf Of Finland ◽  
North West ◽  
The North ◽  
West Region ◽  
The Russian Federation ◽  
The Gulf Of Finland

The article is devoted to studying the situation with opisthorchiasis in populations of freshwater fish in the coastal zone of the Gulf of Finland to identify the possible epizootic and epidemic hazards

scholarly journals DETERMINING THE INCREASE OF THE POWER SUPPLY OF THE PILED PIER THROUGH THE USE OF DRIVEN ANCHOR

2020 ◽  
Vol 10 (2) ◽  
pp. 134-141
Author(s):  
Pavel Perfil'ev ◽  
Ol'ga Murashova ◽  
Natalya Zadrauskayte
Keyword(s):  
Experimental Data ◽  
Russian Federation ◽  
Federal District ◽  
Production Equipment ◽  
The State ◽  
Winter Period ◽  
North West ◽  
The North ◽  
Holding Device ◽  
The Russian Federation

The forest industry in the Russian Federation is actively developing. At the same time, technological and production equipment is being modernized, and timber supply chains are being optimized. A large number of timber industry enterprises have increased the volume of transportation of round timber by water modes of transport, in particular, in rafts in the North-West Federal District of the Russian Federation in recent years. Pile piers are used to prevent "drying" of rafts and fastening of forest transport units in a riverbed. In the case when the enterprise’s raid is at the mouth of the river, the pile pier is subjected to additional loads due to freezing of ice and fluctuation of the water level in the river as a result of tidal phenomena in the spring-winter period. ВAs a result, pile pier is dismantled by ice. It leads to the annual replacement of pile dolphins in spring after passing the ice drift. According to the authors, this is not economically profitable, as it forces enterprises to spend annually labor and material resources on the manufacture and installation of pile channel piers. However, their installation should be carried out in a short time. When studying the state of the issue, a pile pier with an increased holding force has been selected, which is additionally equipped with a holding device in the form of a driven anchor. The paper presents the results of a study of the state of the question under study, the research methodology, analysis of experimental data and the obtained mathematical dependencies. The obtained experimental data and dependences have been processed by standard statistical tools.

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