scholarly journals The effect on nitrogen oxide emission from agricultural soils

2020 ◽  
Vol 175 ◽  
pp. 09014
Author(s):  
Yulia Kolesnikova ◽  
Viktoriia Semal ◽  
Оlga Nesterova ◽  
Simona Castaldi ◽  
Mariya Bovsun ◽  
...  

The study investigates the effect of biochar on nitrous oxide emission in Endoargic Anthrosols in the southern territory of the Russian Far East. Biochar (bio-charcoal) was applied in the amounts of 1 kg/m2 and 3 kg/m2 in combination with organic and mineral fertilizers to drained and drain-free fields during the vegetation season, and the five-gas analyzer G2508 (Picarro) was used. Cumulative flows of N2O were estimated. The analysis revealed that biochar reduces the emissions and the cumulative flow of nitrous oxide. The higher the dose of biochar, the lower the emission and cumulative flows of nitrous oxide, regardless of a drainage system. Biochar (1 kg/m2) reduced the cumulative N2O flow from the soil by 52.2% throughout the experiment conducted, while a dose of 3 kg/m2 allowed for 97.8% reduction. The study found that organic and mineral fertilizers can be effectively used in combination with biochar, as N2O emission from the soil with mineral fertilizers is significantly higher than from the soil with organic fertilizers. Biochar (1 kg/m2) combined with organic fertilizers reduces N2O emission by 53.7%, while a dose of 3 kg/m2 can reduce emissions by 88.9%. Biochar (1 kg/m2) combined with mineral fertilizers reduced the flow of N2O by 17.5%, while a 3 kg/m2 dose of biochar used with mineral fertilizers reduced the emission by 85.3%.

2020 ◽  
pp. 26-28
Author(s):  
Н.Т. Чеботарев ◽  
Н.Н. Шергина

Пахотные угодья Республики Коми в основном представлены дерново-подзолистыми почвами с низким естественным плодородием, которые без применения удобрений быстро подвергаются деградационным процессам, что резко снижает их продуктивность. Цель исследований: оценка эффективности долговременного применения органических и минеральных удобрений при выращивании картофеля в кормовом севообороте в условиях Республики Коми. Методической основой выполнения работ были комплексные исследования дерново-подзолистых почв, клубней картофеля на участках многолетнего полевого эксперимента, заложенного на землях Института агробиотехнологий ФИЦ Коми НЦ УрО РАН в соответствии с «Методическими указаниями географической сети опытов с удобрениями». Длительный период исследований (более 40 лет) характеризовался различными климатическими условиями, которые отразились на количестве урожая и качестве клубней картофеля. Было проведено 7 ротаций (14 лет) с выращиванием картофеля. Вносили органические удобрения – торфонавозный компост (ТНК) в дозах 40 и 80 т/га (1 и 2 фон, соответственно) под картофель и минеральные удобрения – NPК в дозах 1/3; 1/2 и 1 для восполнения выноса растениями элементов питания. Установлено положительное влияние комплексного применения органических и минеральных удобрений на урожайность и качество картофеля, а также на плодородие дерново-подзолистой легкосуглинистой среднеокультуренной почвы в кормовом севообороте в почвенно-климатических условиях Республики Коми. В результате применения шестипольного севооборота и комплексного внесения удобрений с 1978 года к 2019 году в почвах снизилась обменная и гидролитическая кислотность; повысилось содержание гумуса на 0,5% (в контроле); на 0,2–0,5% (с тремя дозами минеральных удобрений); на 0,3–1,1% (с ТНК); на 0,2–1,6% (при совместном применении органических и минеральных удобрений). Наибольшие урожаи картофеля получены при совместном применении органических (80 т/га) и минеральных удобрений (1 NPК) и составили 37,1 т/га клубней (8,5 тыс/га кормовых единиц). При таком соотношении удобрений показано высокое качество клубней картофеля: содержание крахмала 15,5%, витамина С – 19,4 мг%, сырого протеина – 14,1%. Количество нитратного азота не превышало ПДК (ПДК 250 мг.с.м.). Экономические расчеты показали, что при внесении ТНК 40 т/га + 1 NPК в дерново-подзолистые почвы с.-х. использования в среднетаежной зоне Республики Коми при выращивании картофеля, условный чистый доход составит 68,4 тыс. р. с 1 га, себестоимость 1 т картофеля – 2,8 тыс. р., рентабельность 188,7%. The arable land of the Republic of Komi is mainly represented by dern-sub-ground soils with low natural fertility, which without the use of fertilizers are quickly subjected to degradation processes, which dramatically reduces their productivity. The aim of the research is to evaluate the efficiency of long-term use of organic and mineral fertilizers in the growing of potatoes in feed crop rotation in the conditions of the Komi Republic. The methodological basis for carrying out the works was comprehensive studies of dern-subhead soils, potato tubers on the sites of a multi-year field experiment laid on the lands of the Institute of Agrobiotechnology of the FRC Komi SC UB RAS in accordance with the «Methodological Instructions of the Geographical Network of Experiments with Fertilizers». A long period of research (more than 40 years) was characterized by different climatic conditions, which affected the number of crops and the quality of potato tubers. There were 7 rotations (14 years) with potato cultivation. Organic fertilizers – peat-avous compost (TNK) in doses of 40 and 80 t/ha (1 and 2 background, respectively) for potatoes and mineral fertilizers – NPK in doses of 1/3; 1/2 and 1 to replenish the carry-out of food elements by plants. The positive effect of the integrated use of organic and mineral fertilizers on the yield and quality of potatoes, as well as on the fertility of soddy-podzolic light loamy medium cultivated soil in fodder crop rotation in the soil and climatic conditions of the Komi Republic, has been established. As a result of the use of six-bed crop rotation and the integrated application of fertilizers, metabolic and hydrolytic acidity decreased in soils from 1978 to 2019; humus content increased by 0.5% (in control); 0.2–0.5% (with three doses of mineral fertilizers); 0.3–1.1% (with TNCs); 0.2–1.6% (with combined use of organic and mineral fertilizers). The largest potato yields were obtained from the combined use of organic (80 t/ha) and mineral fertilizers (1 NPK) and amounted to 37.1 t/ha tubers (8.5 thousand/ha feed units). The largest potato harvests were obtained with the combined use of organic (80 t/ha) and mineral fertilizers (1 NPK) and amounted to 37.1 t/ha of tubers (8.5 thousand/ha of feed units). With this ratio of fertilizers, the high quality of potato tubers was also determined: the starch content was 15.5%, vitamin C – 19.4 mg%, crude protein – 14.1%. The amount of nitrate nitrogen did not exceed the MPC (MPC 250 mg.s.m.). Economic calculations showed that if TNK is added 40 t/ha 1 NPK to the dern-sub-ground soils of agricultural use in the medium-sized zone of the Komi Republic when growing potatoes, the conditional net income will be 68.4 thousand rubles from 1 ha, the cost of 1 t of potatoes – 2.8 thousand rubles, profitability 188.7%.


2008 ◽  
Vol 88 (2) ◽  
pp. 153-161 ◽  
Author(s):  
E G Gregorich ◽  
P. Rochette ◽  
P. St-Georges ◽  
U F McKim ◽  
C. Chan

The ways in which agricultural soils are managed influence the production and emission of nitrous oxide (N2O). A field study was undertaken in 2003, 2004, and 2005 to quantify and evaluate N2O emission from tilled and no-till soils under corn (Zea maysL.) and soybeans (Glycine max L. Merr) in Ontario. Overall, N2O emission was lowest in 2003, the driest and coolest of the 3 yr. In 2004, the significantly larger annual N2O emission from no-till soils and soils under corn was attributed to an episode of very high N2O emission following the application of fertilizer during a period of wet weather. That the N loss by N2O emission occurred only in no-till soils and was large and long-lasting (~4 wk) confirms the strong effect that management has in reducing fertilizer N losses. In 2005, tilled soils had significantly larger N2O emission than no-till soils, most of which was emitted before the end of June. Because the tilled soils were better aerated , nitrification was likely the primary process contributing to the larger emission. Relatively low N2O emission from soybeans suggests biological N fixation does not appear to contribute substantially to the annual N2O emission. Further study of methods to reduce N2O emission in agricultural systems should focus on improving N use efficiency within a particular tillage system rather than looking to differences between tillage systems. Key words: Tillage, corn, soybeans, nitrogen, nitrous oxide, biogenic gas emission, nitrification, denitrification, fertilization


2013 ◽  
Vol 41 (1) ◽  
pp. 195
Author(s):  
Costel SAMUIL ◽  
Vasile VINTU ◽  
Culita SIRBU ◽  
Mihai STAVARACHE

This investigation examines the influence of fertilization with organic and mineral fertilizers on the biodiversity of grasslands containing Festuca rubra, Agrostis capillaris and Nardus stricta. Permanent meadows were studied in terms of production of food, and of biodiversity. The current strategy of using organic fertilizers has raised concerns about resource conservation and environmental protection. The increase in the number of species is due to the fertilizers that have been applied leading to changes in the soil fertility status. This change in soil fertility has allowed other mesotrophic and eutrophic species to become established in fertilized meadows. In Romania, meadows belonging to this category occupy an area of approximately 1,600,000 hectares and have relatively low production rates. The experiment was located at Pojorata, Suceava County (Romania), in two different natural grasslands that had different floristic compositions. Manure improved the growth of a number of species, especially in the "plants from other botanical families" category, because of the pool of seeds that it contains. Using a management system based on fertilization with small amounts of organic and mineral fertilizers can help preserve the biodiversity of these meadows. The results of this study, in an area considered representative for large parts of the mountainous areas of Romania, indicated that fertilization treatments were able to maintain a high species diversity.


2019 ◽  
Vol 29 ◽  
pp. 3-11
Author(s):  
V. V. Volkohon ◽  
А. М. Moskalenko ◽  
S. B. Dimova ◽  
К. І. Volkohon ◽  
О. V. Pyrih ◽  
...  

Objective. To determine the features of potential N2O emission from the rhizospheric soil of plants under different crop fertilization systems. Methods. Field experiment, gas chromatographic methods. Results. In the field stationary experiment on leached chornozem during crop rotation in potato, spring barley, peas and winter wheat, it was shown that potential N2O losses from the rhizo-spheric soil of plants depend on fertilizing systems and microbial preparations. The losses of nitro-gen gaseous compounds are proportional to the standards of the applied mineral nitrogen fertiliz-ers. High N2O emission rates are observed in the first year of cattle manure application and during its after-effect. Emission of nitrous oxide also increases with organo-mineral fertilization. The use of microbial preparations in crop cultivation technologies: Biogran for potatoes, Mikrogumin for spring barley, Rhizogumin for peas, Polimiksobakteryn for winter wheat under the application of mineral fertilizers, contributes to a significant limitation of nitrogen gas losses. This is due to the increase of the absorption coefficients of the active substance from the fertilizers by bacterization-initiated plants and, consequently, the decrease in mineral nitrogen compounds in the rhizospheric soil. When growing potatoes by an organic agrarian background (40 t/ha of manure), the signifi-cant effect of Biogran on the course of the biological denitrification process has not been estab-lished, which can be explained by the formation of an intense pool of microorganisms under the use of manure, and the levelling of pre-sowing bacterization due to this effect. Conclusion. The use of microbial preparations for inoculation of agricultural seeds helps to reduce the emission of nitrous oxide from rhizospheric soil of plants under their cultivation by mineral agrarian backgrounds, which is important both economically and environmentally.


2009 ◽  
Vol 6 (3) ◽  
pp. 5305-5337 ◽  
Author(s):  
M. Maljanen ◽  
P. Virkajärvi ◽  
J. Hytönen ◽  
M. Öquist ◽  
T. Sparrman ◽  
...  

Abstract. Agricultural soils are the most important sources for the greenhouse gas nitrous oxide (N2O), which is produced and emitted from soil also at low temperatures. The processes behind emissions at low temperatures are still poorly known. To simulate the effects of a reduction in snow depth on N2O emission in warming climate, snow pack was removed from three different agricultural soils (sand, mull, peat). Removal of snow lowered soil temperature and increased the extent and duration of soil frost which led to enhanced N2O emissions during freezing and thawing events in sand and mull soils. The cumulative emissions during the first year when snow was removed over the whole winter were 0.25, 0.66 and 3.0 g N2O-N m−2 yr−1 in control plots of sand, mull and peat soils, respectively. Without snow cover the respectively cumulative emissions were 0.37, 1.3 and 3.3 g N2O-N m−2 yr−1. Shorter snow manipulation during the second year did not increase the annual emissions. Only 20% of the N2O emission occurred during the growing season. Thus, highlighting the importance of the winter season for this exchange and that the year-round measurements of N2O emissions from boreal soils are integral for estimating their N2O source strength. N2O accumulated in the frozen soil during winter and the soil N2O concentration correlated with the depth of frost but not with the winter N2O emission rates per se. Also laboratory incubations of soil samples showed high production rates of N2O at temperatures below 0°C, especially in the sand and peat soils.


2018 ◽  
Vol 2 (95) ◽  
pp. 35-41
Author(s):  
S.H. Korsun ◽  
A.V. Davydiuk ◽  
V.V. Hirnyk

Purpose. Identify the features of changes in the factor of potassium capacity of dark gray soil under long-term systematic application of different doses of mineral and organic fertilizers. Methods. Field, laboratory, mathematical and statistical. Results. At various intensities of fertilizer systems and fertilizer ratios, it has been established that the long (30 years) use of organic and mineral fertilizers contributed not only to stabilization but also to the restoration of the stock of moving potassium in the arable soil layer in comparison with the initial data (1987).The growth of mobile potassium content was consistent with the increase in the agrochemical load in crop rotation. Conclusions. Long-term systematic application for 1987–2000 years mineral fertilizers in doses of 265–397 kg of NPK on the background of 10 tons of manure per 1 ha of crop rotation, in 2001–2010 years – 211–316,5 kg of NPK per 1 ha, and in 2011–2017 years – 217,5–326,4 kg of NPK per 1 ha on the background plowing crop by-products had a significant impact in the factor on the capacity factor of potassium of dark gray podzolized soil, ensuring it is elevated and very high level.


2021 ◽  
Vol 07 (02) ◽  
pp. 12-15
Author(s):  
Nəcibə Zeynalabidin qızı Mirmövsümova ◽  

Annotation: Influence of mineral fertilizers on aubergine plant together with organic fertilizers has been studied in the irrigated grey-brown soils of Absheron. According to the results of our research on the irrigated grey-brown soils of Absheron, it can be said that organic and mineral fertilizers had a positive effect on the productivity and quality indicators of aubergine plant. Especially in the variant of N75P75K90 + 5t/ha, the results were higher than in other variants. Keywords: mineral fertilizer, organic fertilizer, irrigated grey-brown soil, aubergine plant, productivity, sugar, nitrate.


Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1559
Author(s):  
Mariia A. Bovsun ◽  
Simona Castaldi ◽  
Olga V. Nesterova ◽  
Viktoriia. A. Semal ◽  
Nikolay A. Sakara ◽  
...  

Agricultural soils are a major source of greenhouse gases. Biochar is a soil improver and, when applied to the soil, sequesters carbon. However, a different combination of soil and climatic conditions and biochar leads to different research results. In this research, the effects of 1 kg/m2 and 3 kg/m2 biochar application to clay soils on the CO2 flow in field experiments along two cropping seasons in the Russian Far East were investigated. Data showed that biochar significantly reduces the cumulative flow of soil CO2, compared with untreated field plots. In 2018, the greatest reduction in soil CO2 emissions (28.2%) with 3 kg/m2 of biochar was obtained, while in 2019, the greatest decrease in the cumulative CO2 flow at the application dose of 1 kg/m2 (57.7%) was recorded. A correlation between a decrease in the value of the cumulative CO2 flux and an increase in the biomass grown in the studied areas of agricultural crops during the season of 2018 was found.


2021 ◽  
Author(s):  
Kazuyuki Inubushi ◽  
Miwa Yashima

Soil is one of the important sources of nitrous oxide (N2O), which is generally producing through soil microbial processes, such as nitrification and denitrification. Agricultural soils receive chemical and organic fertilizers to maintain or increase crop yield and soil fertility, but several factors are influencing N2O emissions, such as types and conditions of soil and fertilizer, and rate, form, and timing of application. Mitigation of N2O is a challenging topic for future earth by using inhibitors, controlled-release fertilizers, and other amendments, but the cost and side effects should be considered for feasibility.


Author(s):  
S. А. Nikiforova ◽  
◽  
S. А. Zaharov ◽  

In 2016-2018, scientific research was carried out on the experimental field of the Ulyanovsk agricultural research Institute on leached heavy loam chernozem to assess the effectiveness and aftereffect of mineral and organic fertilizers in the technology of cultivation of spring wheat varieties, depending on the level of intensification. Weather conditions over the years of research were characterized as quite favorable, but during the period of germination-tillering plants experienced a lack of productive moisture, which affected the overall productivity of the crop and the effectiveness of organic and mineral fertilizers. Spring wheat crops used the aftereffect of straw of the previous crop (winter wheat) and manure, as well as the effect and aftereffect (introduced under winter wheat) of mineral fertilizers. The responsiveness of varieties to mineral and organic was different, which was explained by varietal features and the conditions of water availability of the year. Separate planting of winter wheat straw in the soil did not lead to a significant increase in crop productivity. High availability of soil by mineral nutrients (natural fertility) allowed to get depending on grade from 2.3 to 2.96 t/ha of grain in the control variant (without fertilizers), on the ground the advantage was with the variety Margarita (2,96 t/ha). The largest grain yield was formed by spring wheat of Margarita variety, but this variety showed less responsiveness to mineral and organic fertilizers. On average, the increase in yield, depending on the level of intensification, was 0.3-0.5 t / ha. The use of complex fertilizers for pre-sowing cultivation and the aftereffect of organic fertilizers led to an increase in the content of protein (up to 14.1-15.9 %) and gluten (up to 25.9-30.0 %).


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