scholarly journals EFFECT OF CRUDE OIL CONTAMINATION ON SPRING RAPE VULNERABILITY BYDOWNY MILDEW IN FOREST GRAY SOIL

2021 ◽  
Vol 16 (1) ◽  
pp. 45-50
Author(s):  
Regina Osipova ◽  
Minnegali Gilyazov

The work is devoted to the assessment of the impact of a single oil pollution of the soil on the yield and disease incidence of spring rape plants (Brassica napus L.). The study was conducted in experimental site of agrochemistry and soil science department of Kazan State Agrarian University, which is located in Predkamye zone of Tatarstan Republic. The soil in experimental site is clay loamy gray forest soil, which is typical for this zone. The main nutrient properties of uncontaminated soil was low content of humus, slightly high content of labile Phosphorous and moderate availability of labile Potassium, the pH was slightly acid. The soil was intentionally contaminated by crude oil on soil surface at the rates of 10, 20 and 40 l/m2. Based on the previous research, the contamination levels in this study are presented as low, moderate and high levels. The yield of oilseeds of spring rape was closely correlated with the level of one-time pollution of gray forest soil with crude oil over at least 15 years. The results showed that the increase of downy mildew abundance (R2=0,8804) and development(R2=0,8610) correlated with the soil contamination level. Consequently, both abundance and development of downy mildew induced asignificant negative effect on the yield of the main and side rape production. The strength of oil seeds production correlation with the level of plant infection (R2=0,8652÷0,8759) was more significant as compared to the correlation strength with the decrease of rape shoot yield (R2=0,8013÷0,8192)

2021 ◽  
Vol 6 (1) ◽  
pp. 9-17
Author(s):  
Regina Nigmatullina ◽  
Minnegali Gilyazov

The purpose of the research is increasing the yield of spring rape in the Tatarstan pre-Kama zone. Soil pollution affects food safety both by reducing plant performance and yield class. Oil and petrochemicals are common con-tamination sources of environment. The work is devoted to the assessment of the impact of oil pollution of the soil on the yield of spring rapeseed. The study was conducted on the experimental field of the Department of «Agro-chemistry and Soil Science» of the Kazan State Agrarian University, located in the pre-Kama zone of Tatarstan. The experimental site is presented by gray forest medium loamy soil, which is the predominant difference for this zone. The area unpolluted soil was characterized by a low content of humus and a weak acidic medium, high con-centration of phosphorus and potassium active forms. The soil was purposely contaminated with commercial crude oil by spreading over the surface at the rate of 10, 20 and 40 l/m2. These levels of soil pollution, as shown by previ-ous studies, were estimated, respectively, as low, medium and high. A close positive correlation was established between the yield of spring rapeseed and the limitation of soil contamination (R2=0.763÷0.940). Mechanical soil treatment, liming, application of mineral fertilizers and Baikal EM-1 biologics was tested for recultivation. The yield of oilseeds of spring rapeseed was closely correlated with the level of single contamination of gray forest soil with commercial crude oil for at least 15 years. Obtaining the maximum yield of spring rapeseed on oil-polluted gray forest soil was provided by comprehensive application of soil loosening, liming and application of full mineral ferti-lizer.


2015 ◽  
Vol 48 (10) ◽  
pp. 1149-1158 ◽  
Author(s):  
A. Kh. Yapparov ◽  
L. M.-Kh. Bikkinina ◽  
I. A. Yapparov ◽  
Sh. A. Aliev ◽  
A. M. Ezhkova ◽  
...  

Author(s):  
М.А. ГАБИБОВ

В данной статье рассматриваются вопросы влияния биологических и минеральных удобрений на продуктивность озимой ржи на темно-серой лесной почве в условиях Рязанской области. Исследования проводились по методу расщепленных делянок: на делянках первого порядка на озимой ржи изучали эффективность минеральных и органических удобрений, а на делянках второго порядка – действие биопрепаратов. Результаты исследований показали, что наилучшим из исследованных агроэкологических приемов повышения урожайности озимой ржи является использование в качестве органического удобрения соломы люпина и инокуляции семян биопрепаратами ризоагрин или флавобактерин. Урожайность зерна озимой ржи составляет от 37,5 ц/га при использовании ризоагрина и до 38,7 ц/га – флавобактерина, в среднем за 3 года. Относительно фона прибавка составляет 6,7 и 7,9 ц/га или 21,9 и 25,5%. При данном агротехнологическом приеме прибавка получена как за счет увеличения продуктивных стеблей с 495 ш/м2 до 521 шт/м2 при обработке ризоагрином и 538 шт/м2 при обработке флавобактерином, так и за счет увеличения массы зерна в колосе (35,1 г на контроле, 37,5 г при обработке ризоагрином и 37,7 г флавобактерином). Необходимо отметить, что этот максимальный уровень урожайности в опыте был достигнут без внесения минеральных азотных удобрений. В целом наблюдается прямая корреляция между содержанием азота и урожайностью озимой ржи. Вынос основных элементов питания возрастает с увеличением урожайности. This article discusses the impact of biological and mineral fertilizers on the productivity of winter rye on dark gray forest soil in the Ryazan region. Studies were carried out by the method of split plots: on plots of the first order on winter rye studied the effectiveness of mineral and organic fertilizers, and on plots of the second order-the effect of biological products. The results of the research showed that the best of the studied agroecological methods of increasing the yield of winter rye is the use of Lupin straw as an organic fertilizer and inoculation of seeds with biologics rizoagrin or flavobacterin. The yield of winter rye grain is from 37.5 C / ha using rhizoagrin and up to 38.7 C / ha from flavobacterin, on average for 3 years. Relative to the background, the increase is 6.7 and 7.9 C / ha or 21.9 and 25.5%. With this agrotechnological method, the increase was obtained both by increasing the productive stems from 495 W / m2 to 521 PCs/m2 when treated with rizoagrin and 538 PCs/m2 when treated with flavobacterin, and by increasing the weight of grain in the ear (35.1 g on the control, 37.5 g when treated with rizoagrin and 37.7 g flavobacterin). It should be noted that this maximum level of yield in the experiment was achieved without the introduction of mineral nitrogen fertilizers. In General, there is a direct correlation between nitrogen content and winter rye yield. The removal of essential nutrients increases with increasing yields.


2020 ◽  
Vol 14 (4) ◽  
pp. 85-91
Author(s):  
Regina Osipova ◽  
Minnegali Gilyazov ◽  
Salavat Galavetdinov

The work is devoted to assessing the effect of a single oil pollution of the soil on the yield and chemical composition of spring barley plants during four rotations of crop rotation. The study was conducted in 2004-2018 on the experimental field of Agrochemistry and Soil Science Department of Kazan State Agrarian University, located in the ancestral zone of the Republic of Tatarstan. The soil of the experimental plot is gray forest medium loamy, which is the prevailing soil difference for this zone. Uncontaminated soil was characterized by a low humus content and a slightly acidic reaction of the medium, an increased content of mobile phosphorus and an average supply of mobile forms of potassium and trace elements (B, Mo, Mn, Cu, Zn, Co). The soil was artificially contaminated with salable oil at the rate of 20 l/m2, which, as shown by previous studies of the department, corresponds to the average level of pollution. The effect of oil pollution of gray forest soil on the productivity of barley sown 2, 6, 10 and 14 years after pollution was studied. A statistically significant decrease in the yield of spring barley was established within 14 years from the moment of contamination. As the pollution ages, the yields on contaminated soil gradually approach the yield level of the control (uncontaminated) soil. In all years of observation, a decrease in grain yield from oil pollution of the soil was more significant than a decrease in straw yield. Old oil pollution of gray forest soil had a weak effect on the content of total nitrogen, phosphorus and potassium in the plants of spring barley. The spring barley utilization rates of mineral nitrogen and mobile phosphorus in gray forest soil under the influence of old oil pollution decreased by about 1/4, and mobile potassium by 1/5.


2021 ◽  
Vol 11 (4) ◽  
pp. 831-836
Author(s):  
Olena Litvinova ◽  
◽  
Stanislav Dehodiuk ◽  
Dmytrо Litvinov ◽  
Lyudmyla Symochko ◽  
...  

Author(s):  
Verla Andrew Wirnkor ◽  
Enyoh Christian Ebere ◽  
Verla Evelyn Ngozi ◽  
Nwanorh Kieran Oharley

Current problem facing researchers globally is microplastics as well as toxic chemical pollution of the ecosystem. Microplastics carry toxic chemicals in the ecosystem.serving as a vector for transport. In this study, a review of the literature has been conducted with the following objectives: (1) to summarise the concentrations of toxic chemicals such heavy metals and hydrophobic organic contaminants sorped on microplastics; (2) to evaluate their spatial distribution regarding adsorbed contaminant (3) to discuss plausible mechanism by which microplastics adsorp or desorp toxic chemicals in the environment; (4) to discuss implications of their occurrence in air, water and soil media; and (5) to discuss the impact of ingested microplastics to human health. Microplastics are ubiquitous environmental contaminant. Concentrations of sorped toxic chemical varied with location which represents a local problem; industrialized areas (especially areas experiencing crude oil related activities or have history of crude oil pollution) have higher concentrations than less industrialized areas. Ingestion of microplastics has been demonstrated in a range of marine and soil organisms as well as edible plants, thus possible contaminating the base of the food-web. Potential health effect to human is by particle localization, chemical toxicity and microbal toxins. We conclude by highlighting the gap in knowledge and suggesting key future areas of research for scientists and policymakers.


2018 ◽  
Vol 12 (4) ◽  
pp. 24-26
Author(s):  
Миннегали Гилязов ◽  
Minnegali Gilyazov ◽  
Булат Юнусов ◽  
Bulat Yunusov

The variability of chemical composition of winter rye harvest under the influence of the Extrasol biological preparation, mineral fertilizers and seed dressing is considered. The values of economic and normative removal of basic nutrients in conditions of gray forest soil are established. The size of the normative removal of nitrogen, phosphorus and potassium by winter rye has been relatively stable, although slightly increased from the introduction of mineral fertilizers.


2021 ◽  
Vol 36 ◽  
pp. 03002
Author(s):  
Nikolay Perfilyev ◽  
Olga Vyushina

Studies, were conducted in a stationary experiment between 1988 and 2018 on dark gray forest heavy loam soil in Scientific Research Institute of Agriculture for Northern Trans-Ural Region - Branch of Federal State Institutions Federal Research Centre Tyumen Scientific Centre of Siberian Branch of the Russian Academy of Sciences. The aim of the study is to determine the effect of long-term (30 years) impact of different systems of basic cultivation of dark gray forest soils in the cultivation of grain crops on the humus content. Observations were made according to generally accepted methods during 6 rotations of grain and fallow crop rotation: bare fallow, winter rye, spring wheat, spring vetch, spring barley, unfolded in time and space. The impact of the combined system of tillage with alternation of plowing and no-tillage at 20-22 cm during 6 rotations of a 5-pole grain and steam crop rotation (30 years), increased the humus content in the 0-40 cm layer of dark gray forest soil compared with the initial content by 0.42%. The systems of main tillage - differentiated, without sowing, and mouldboard provided in general a relatively favorable dynamics of the humus state of the soil. The content of humus in the 0-40 cm layer of soil by differentiated and unswept systems during the study period remained close to the initial condition. По отвальной системе содержание гумуса снижалось на 0,22% или в среднем 0,37т/га в год. The greatest loss of humus in the 0-40 cm layer of soil by 0.80% in relation to the initial was the impact of surface treatment with annual discing BDT-2,5 (heavy disc harrows) on 10-12 cm or an average annual loss of 1.33 t / ha.


2020 ◽  
pp. 181-191
Author(s):  
M. Tkachenko ◽  
N. Borys ◽  
Ye. Kovalenko

The research aims to establish the eff ectiveness of granular chalk use produced by «Slavuta-Calcium» Ltd. under growing Poliska–90 winter wheat variety, changing the physicochemical properties of grey forest soil and the wheat productivity. It also aims to establish optimal dosis of «Slavuta-Calcium» granular chalk as the meliorant and mineral fertilizer for grey forest soil in the system of winter wheat fertilization. In the temporary fi eld studies, various doses of nutrients N60–90–120P30–45–60K60–90–120 combined with «Slavuta–Calcium» granular chalk in a dose of Ca230–460–690 kg/ha of the active substance were studied against the background of secondary plowing of rotation products – soybean biomass that averaged 2.34 t/ha. Granular chalk is a modern complex highly eff ective meliorant with the content of Ca – 37.7 and Mg – 0.2 %, the mass fraction of carbonates (CaCO3 + MgCO3) makes at least 95 %. It is characterized by a high level of solubility when interacting with moisture in soil. It has a form of white granules, the mass fraction of 4.0–6.0 mm in size granules makes not less than 90 % and the one of 1.0 mm in size makes less than 5 %. Reactivity – 97 %. The granular chalk is advisable to apply on acidic soils, as a highly concentrated calcium-magnesium fertilizer, with the former as the dominant fertilizer, to optimize the physicochemical properties of the soil, as well as the plant nutrition system, in particular, increasing the availability of an element for assimilation by plants and as long-term ameliorants. The eff ectiveness of the use of mineral fertilizers, in particular acidic nitrogen on highly and medium acidic soils, after chemical reclamation is increased by 30–50 %, and slightly acidic by 15–20 %. The increase in productivity of crops from the combined eff ects of nutrients and chalk granulated is usually higher than when separately applied. The eff ectiveness of the integrated action of these elements is manifested in the growth of plant productivity and the quality of the resulting products, as well as the optimization of physical chemical properties and soil buff ering in the long term. In order to optimize the physicochemical properties of the arable layer of gray forest soil and the productive nutrition of agricultural crops, winter wheat, in particular, biogenic elements should be used in doses N60-90-120P30-45- 60K60-90-120 with granulated chalk «Slavuta-Calcium» in doses of Ca230-460-690 kg/ha of active substance. Granulated chalk obtained as a result of industrial grinding of solid sedimentary carbonate rocks of natural origin, subsequently under the infl uence of the granulation process of the starting material contains Ca and Mg carbonates of at least 95 %, dense granules which facilitates convenient mechanized application, as well as chalk suitable for accurate metered application on the quest map. Key words: granular chalk, gray forest soil, chemical reclamation, crop productivity.


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