Interaction of the bar-plate conveyor of the machine with mineral fertilizers

2020 ◽  
pp. 48-53
Author(s):  
P. I. Vitrukh
Keyword(s):  
Theoretical Calculations ◽  
Mineral Fertilizer ◽  
Uneven Distribution ◽  
Mineral Fertilizers ◽  
Structural Scheme ◽  
Mode Of Operation ◽  
Continuous Surface ◽  
Combination Of Methods ◽  
The Stability ◽  
The Impact

Annotation Purpose. Determining the impact and interaction of the bar-plate conveyor with the mass of fertilizers to justify the choice of its parameters and mode of operation, ensuring the stability of the process. Methods. Theoretical calculations, their analysis. Results. The structural scheme of the process of mineral fertilizers leakage by bar-plate conveyor through the unloading window is substantiated. The effectiveness of fertilizers largely depends on the correct combination of methods of their introduction into the soil. There are two ways to use fertilizers: continuous surface sifting and internal soil application. Depending on the terms and norms perform basic and pre-sowing application, as well as fertilization [1]. Centrifugal mineral fertilizer spreaders, which use disks with the possibility of making the working mixture on the surface at an angle to the horizon have become widespread. This is due primarily to the versatility of the tool, in which due to the reorientation of the disk you can get high quality fertilizers and achieve high widths of spread. Conclusions. The results of the kinematic analysis showed that the theoretically possible uneven distribution of mineral fertilizers can reach 34–60%, in fact it is less due to the elasticity and shedding of fertilizers. To reduce the uneven distribution in the design of the machine, we have provided an intermediate hopper with an inclined auger, due to which we were able to significantly reduce the intermittent supply of mass by the conveyor. Secondly, due to the auger, we have achieved the versatility of the machine: after removing the centrifugal working body, the machine can be used for other work. Keywords: mineral fertilizers, bar-plate conveyor, spreading and local fertilization.

Substantiation the machine with a basket for the application of mineral fertilizers and other bulk materials with the upper arrangement of the feeding device

2019 ◽  
pp. 37-43
Author(s):  
Fesenko, H.
Keyword(s):  
Fat Body ◽  
Mineral Fertilizer ◽  
The Body ◽  
Mineral Fertilizers ◽  
Analytical Mechanics ◽  
Bulk Materials ◽  
The Stability ◽  
Working Bodies ◽  
The Relationship ◽  
Stable Flow

Purpose. Increasing the uniformity of distribution of mineral fertilizers and other bulk materials due to the stability of their feed from the body to the spreading working bodies using the top feeder. Methods. The following methods are used to achieve this aim: the method of comparing the differences between individual groups of fertilizers, the method of analyzing the properties of a new technical system, the method of functional inventiveness, and the methods of theoretical and analytical mechanics. Results. The traction body of the conveyor of the upper feed of the body fat body machine for mineral fertilizers and other bulk materials was substantiated and the relationship between the height of its scrapers and the distance between them was established, as well as the nature of the mineral fertilizer pressure on the curvilinear wall of the body. In addition, the design of the advanced body fertilizer spreader is justified, which ensures a stable flow of fertilizers from the body due to the improvement of the top feeder. Conclusions. Because of the conducted researches, the advantages of machines equipped with top feeder are found. They create the conditions for the forced feeding mineral fertilizers and other loose materials from the container to the distribution bodies, which is a prerequisite for their evenness on the surface. With this, the imperfection of known machines with the top feeder constrains their introduction into agricultural production. On this account, a more thoroughly constructed solution of the body feeder of the top feed is substantiated, in which the conveyor provides a stable supply of fertilizers from the body with reduced energy consumption during operation. Keywords: analysis, feed, upper device, conveyor, stability, fertilizers, flow ability, body.

scholarly journals Structural Properties of G,T-Parallel Duplexes

2010 ◽  
Vol 2010 ◽  
pp. 1-11 ◽  
Author(s):  
Anna Aviñó ◽  
Elena Cubero ◽  
Raimundo Gargallo ◽  
Carlos González ◽  
Modesto Orozco ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Structural Properties ◽  
Theoretical Calculations ◽  
Md Simulations ◽  
Theoretical Studies ◽  
Duplex Structure ◽  
Strong Stabilization ◽  
The Stability ◽  
The Impact

The structure of G,T-parallel-stranded duplexes of DNA carrying similar amounts of adenine and guanine residues is studied by means of molecular dynamics (MD) simulations and UV- and CD spectroscopies. In addition the impact of the substitution of adenine by 8-aminoadenine and guanine by 8-aminoguanine is analyzed. The presence of 8-aminoadenine and 8-aminoguanine stabilizes the parallel duplex structure. Binding of these oligonucleotides to their target polypyrimidine sequences to form the corresponding G,T-parallel triplex was not observed. Instead, when unmodified parallel-stranded duplexes were mixed with their polypyrimidine target, an interstrand Watson-Crick duplex was formed. As predicted by theoretical calculations parallel-stranded duplexes carrying 8-aminopurines did not bind to their target. The preference for the parallel-duplex over the Watson-Crick antiparallel duplex is attributed to the strong stabilization of the parallel duplex produced by the 8-aminopurines. Theoretical studies show that the isomorphism of the triads is crucial for the stability of the parallel triplex.

scholarly journals The Mineral Fertilizer-Dependent Chemical Parameters of Soil Acidification under Field Conditions

2020 ◽  
Vol 12 (17) ◽  
pp. 7165
Author(s):  
Przemysław Tkaczyk ◽  
Agnieszka Mocek-Płóciniak ◽  
Monika Skowrońska ◽  
Wiesław Bednarek ◽  
Sebastian Kuśmierz ◽  
...  
Keyword(s):  
Soil Acidification ◽  
Soil Acidity ◽  
Management Practices ◽  
Base Cations ◽  
Mineral Fertilizer ◽  
High Rate ◽  
Mineral Fertilizers ◽  
Chemical Parameters ◽  
Npk Fertilizer ◽  
The Impact

Soil acidification in agroecosystems is a natural process that could be accelerated, mainly by the inappropriate application of mineral fertilizers, or prevented, by sustainable management practices. On the basis of a three-year field study in a grassland agroecosystem, the impact of different rates of fertilization with nitrogen (N), phosphorus (P), and potassium (K) on soil chemical parameters related to soil acidity was evaluated. It was found that high-rate fertilization with ammonium nitrate accelerated the soil acidification process, which was additionally intensified by the application of superphosphate and potassium salt. The sum of exchangeable base cations, the values of base saturation and hydrolytic acidity in the soil reflected the interactions between the applied NPK-fertilizer levels. Considering chemical parameters related to soil acidity studied in this experiment, it seems that the best strategies for mitigating soil acidification in grasslands are reducing nitrate leaching, changing fertilizer types and increasing the input of base cations.

Soil conditions and yield of repeatedly grown apple orchard depending on long-term fertilizer application

2021 ◽  
Vol 1 (98) ◽  
pp. 34-47
Author(s):  
P. H. Kopytko ◽  
◽  
R. V. Yakovenko
Keyword(s):  
Soil Fertility ◽  
Organic Fertilizer ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Mineral Fertilizers ◽  
Soil Conditions ◽  
Apple Trees ◽  
The Impact

The issue of scientifically sound fertilizer application in fruit plantations, which are long-term and re-grown in one place remains insufficiently studied. To solve this problem is possible only in long-term stationary studies, as the impact of different fertilizer systems on changes in soil properties and tree productivity for a long period of their use. The results of researches of long-term fertilizer influence on the main fertility indices of dark gray podzolic heavy loam soil and productivity of repeatedly grown apple trees of Idared varieties on seed and vegetative (M4) rootstocks and Calville snow on seedling rootstock are considered. During the 85-year period of growing the first and second generation of apple trees in the experimental garden, the organic fertilizer (40 t/ha of cattle manure), mineral fertilizer (N120P120K120) and their combination (20 t/ha of manure + N60P60K60) were applied in the old plantation every two years in autumn in plowing in rows at 18–20 cm, and in the new repetition: manure, phosphorus and potassium fertilizers as well, and nitrogen fertilizer in half doses annually in spring for cultivation or disk plowing to a depth of 12–15 cm. As a result of research it was found that organic fertilizer better than mineral fertilizers provided the formation of soil fertility (humus and mobile compounds and forms of nutrients, soil reaction) and yield capacity of experimental apple trees, which for all years of fruiting exceeded the total yield of Calville snow and Idared on seedling and vegetative rootstocks, respectively, by 34.8, 27.7 and 23.4 % compared with the yield of the control non-fertilized areas and 16.0, 15.8 and 13.2 % – on those fertilized with N120Р120К120. Similar parameters of soil fertility indicators are formed by the organo-mineral fertilizer system with systematic long-term application of half the norms of organic and mineral fertilizers of manure 20 t/ha together with N60P60K60. However, the mineral system (N120P120K120) significantly less increases the humus content and content of macronutrients available for plant nutrition and does not enrich the soil with trace elements, acidifies the reaction of the soil environment

scholarly journals Assessment of Recycling-derived Fertilizers as an Alternative to Mineral Fertilizers – Effects on the Soil Microbiome

2020 ◽  
Vol 2 (7A) ◽  
Author(s):  
Lea Deinert ◽  
Israel Ikoyi ◽  
Achim Schmalenberger
Keyword(s):  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Soil Microbiome ◽  
Most Probable Number ◽  
Mineral Fertilizers ◽  
Probable Number ◽  
Soil P ◽  
Pot Trial ◽  
Living Organisms ◽  
The Impact

Phosphorus (P) is an essential macronutrient for all living organisms and is applied as fertilizer in agroecosystems to improve crop growth. Recycling-derived fertilizers (RDFs) have been developed for nutrient recovery from Europe’s largest waste streams as a sustainable alternative to this finite resource. The impact of four RDFs (two ashes, two struvites) on the soil microbiome in comparison with a P-free control and triple super phosphate (TSP) as mineral fertilizer was investigated in a pot trial and a subsequent microcosm trial (subset of samples). For both experiments perennial ryegrass was cultivated for 54 days. The pot trial was conducted at P fertilization rates of 20 and 60 kg P ha-1 in quadruplicates. After the pot harvest the bulk soil was stored until the microcosm trial was conducted, using the control, TSP and the two ashes at 60 kg P ha-1 in six replicates. Pot trial results showed highest P bioavailability from struvites at high P rates, also resulting in higher biomass yield on average. Furthermore, P solubilization capabilities from tri-calcium phosphate was enhanced in the RDFs treatments, while the TSP treatments were negatively affected. For the microcosm trial, most probable number (MPN) analysis showed that phytate-utilizing bacterial abundance was significantly increased in one of the ashes and had also remained higher in the RDF treatments after storage. Understanding the effects of recycling-derived fertilizer application on the soil P cycle is vital for developing a more sustainable agriculture.

scholarly journals INFLUENCE OF THE MINERAL NUTRITION LEVEL ON THE PRODUCTIVITY OF CEREAL AND LEGUMINOUS AGROCENOSES IN THE FOREST STEPPE OF BAIKAL

2019 ◽  
Vol 14 (3) ◽  
pp. 5-9
Author(s):  
Виктор Агафонов ◽  
Viktor Agafonov ◽  
Евгений Бояркин ◽  
Evgeniy Boyarkin
Keyword(s):  
Mineral Nutrition ◽  
Growth And Development ◽  
Mineral Fertilizer ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Mineral Fertilizers ◽  
Forest Steppe ◽  
Green Mass ◽  
Green Mass Yield ◽  
The Impact

The article presents findings of the influence of different levels of mineral nutrition on plant growth and development, the impact of fertilizers on the botanical composition, on the productivity and forage benefits of cereal-bean agrocenoses in the forest-steppe zone of the Baikal region. The objects of research were mixed crops of oats with peas and millet with vetch, peas, and Austrian winter pea. Legumes are the main source of protein increase in feed. In the field, the most widespread, among legumes, were vetch, sowing peas, field peas (Austrian winter pea). As a result of phenological observations, it was found that the growth and development of plants depended on the biological characteristics of crops, weather conditions and directly on the mineral nutrition level. The millet reacted most effectively to the application of mineral fertilizers, starting from the exit phase into the tube. The introduction of mineral fertilizers in pre-sowing tillage contributed to an increase in the proportion of legume components in the total green mass yield and a decrease in cereals. The highest competition in agrocenoses of millet with legume components was vetch, its share in the mixture increased, compared to the unfertilized background, by 6 and 14.5%, depending on the background of fertilizers. It was found that, compared with the unfertilized background, mineral fertilizers increased the yield of green mass from 1.5 to 4.9 tons per hectare, the collection of dry matter from 0.4 to 2.0 tons per hectare and the collection of feed units from 0.3 to 1.3 tons per hectare. Digestible protein content in 1 unit increased with the introduction of nitrogen fertilizer (N45), depending on the type of components in the mixture, from 3.2 to 6.6 g, and with the introduction of complex mineral fertilizer (N45P30K30) from 2.5 to 9.6 g. All are millet-bean mixtures at all levels of mineral nutrition comply with zootechnical standards.

EFFECTIVENESS OF DIFFERENTIATION OF FERTILIZERS DOSES IN GRAIN FALLOW CROP ROTATION LINK

1970 ◽  
pp. 20-24
Author(s):  
А. I. Ivanov ◽  
Zh. А. Ivanova ◽  
N. А. Tsyganova
Keyword(s):  
Crop Rotation ◽  
Soil Cover ◽  
Arable Land ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Perennial Grasses ◽  
Low Fertility ◽  
Mineral Fertilizers ◽  
The Impact ◽  
Fertilizer Rates

To assess the efficiency of spatial differentiation of the organic and mineral fertilizer rates in the grain-fallow rotation link the landscape field trial was established in 2013 at the Menkovo experimental station of the Agrophysical Research Institute. The object of study was a historically formed plot of arable land on a mild glacial origin slope of northwestern and western expositions with total area - 53.64 ha (including 47.3 ha of plowed field and 6.34 ha of hayland). The structure of the soil cover consists of a combination of small-contour complexes of light and medium-loamy varieties of soddy gleyed podzolic and gleyic soils. Parent rock is mainly represented by thin and medium loamy and clay sandy moraine underlying by glacial sandy loam on a depth of 75 – 120cm. Soils of medium fertility with plots of high and low fertility are dominated on plowed field. Five key plots of agromicrolandscape (AML) with different geochemical regimes have been selected. The impact of zonal and precision organo-mineral fertilizer system was studied in the "complete fallow – winter wheat – oats plus perennial grasses" crop rotation. Significant differentiation of the soil cover properties of arable land on a mild slope depending on the landscape and environmental conditions was established. The transition to precision agrochemical survey is relevant. The crop rotation link productivity within the five facies of the agricultural landscape varied from 4.98 to 8.68 t/ha in the variant without fertilizer application and from 7.59 to 14.6 t/ha in the variant with fertilizer application. The sufficiency of 1 kg NPK in the fertilizer application variant varied from 1.7 to 5.6 grain units. Sufficient grounds have not been revealed to explain this variability of the indicators only with the relief location and geochemical regime. The optimization of fertilizer rates with regard to specific geochemical regimes (an increase of 12% in AML and a decrease of 14% in AML due to the redistribution of organic and mineral fertilizers) provided increase the sufficiency of 1 kg NPK by 35 %. The methodological basis of such optimization induces a need to develop more detailed scientific argumentation.  

scholarly journals Microbiocenosis characteristics of agrogenically altered acid brown forest soils in humid subtropics of Russia

2021 ◽  
Vol 34 ◽  
pp. 05002
Author(s):  
Elena Rogozhina ◽  
Lyudmila Malyukova
Keyword(s):  
Forest Soils ◽  
Functional Activity ◽  
Mineral Fertilizer ◽  
Fertilizer Application ◽  
Climatic Conditions ◽  
The Black Sea ◽  
Mineral Fertilizers ◽  
Nitrogen Fixation Activity ◽  
The Impact ◽  
Brown Forest Soils

Under conditions of perennial cropping of industrial tea crop on acidic brown forest soils of the Black Sea coast of Russia, the following were investigated: number of bacteria, of actinomycetes (mainly the Streptomyces genus) and of micromycetes (saccharomycetes), seasonal dynamics and functional activity of the microbial complex during period of 2008-2019. Stationary experiments were launched in various backgrounds of mineral fertilizer application. The experiment was accompanied by the use of generally accepted recommended techniques for microbiological studies. As follows from the analysis of the data obtained, it was established that the long treatment period of mineral fertilizers at doses from N200P60K50 to N600P180K150 in given soil-climatic conditions under the tea crop contributed to significant decrease in the number of actinomycetes and nitrogen fixing bacteria of the Beijerinckia genus vs. the control variant (without fertilizers). The most significant decrease in the number of micromycetes was revealed immediately after the application of mineral fertilizers at a dose of N600P180K150. After 2 months, the number of this group of soil microorganisms was built back. Under the impact of both medium and high doses of mineral fertilizers, the functional activity decrease of soils (CO2 emission and potential nitrogen fixation activity) was noted.

Intensity of microbiological processes in gray forest soils under the liming and plowing of crop by-products

2018 ◽  
Vol 30 (1) ◽  
pp. 19-23 ◽  
Author(s):  
I. M. Malynovska ◽  
N. A. Tkachenko
Keyword(s):  
Organic Matter ◽  
Biological Activity ◽  
Mineral Nutrition ◽  
Mineral Fertilizer ◽  
Positive Influence ◽  
Mineral Fertilizers ◽  
Mineral Fertilization ◽  
The Impact ◽  
By Products ◽  
Crop Biomass

Established that liming with single dose by hydrolytic acidity (1,0 Hg) slows down the processes of organic matter mineralization in gray forest soil: without mineral fertilizers – in 2,1 times, with mineral fertilizers – in 4,1, with plowing of the seed crop biomass and the by-products of the predecessor – in 1,4 times. The mineralization of nitrogen compounds as a result of liming also proceeds slower: without mineral fertilizers – in 1,2 times, with mineral fertilizers – in 2,2 times. Confirmed patterns that were obtained in previous years of research about the impact of liming on the activity of humus mineralization – it decreases as a result of liming with full dose (1,0 Hg) without mineral fertilizers by 66,7 %, with mineral fertilizers – by 4,4 %.  The total biological activity in the soil without a mineral fertilizer increases as a result of liming by 23,0 %, with mineral fertilizers – by 42,5, at the background of exogenous organic matter (EOM) plowing – by 83,7 %. Liming allows to reduce the level of phytotoxicity of soil without mineral fertilization by 17,9 %, %, with mineral fertilizers at the background of EOM – by 12,2 %. Positive influence of liming is amplified in variants with introduction of organic matter into the soil (byproducts of predecessor and siderate). Plowing of siderate crop biomass and by-products of predecessor in crop rotation allows to slow down the processes of organic matter accumulation in soil. The application of liming and mineral fertilizers in combination with the introduction of EOM reduces the index of pedotropy in 2,1 times, only with mineral fertilizers (N60Р30К60) – in 1,5 times. Similarly, plowing of the EOM affects the intensity of other mineralization processes. The total biological activity increases as a result of EOM plowing into the soil: in the variant with the use of mineral fertilizers by 54,7 %, with mineral fertilizers and liming – by 28,9 %. Confirmed previously established laws regarding the impact of optimization of mineral nutrition on the activity of decomposition of humic substances: with an increase in the dose of mineral fertilizers in 1,5 and 2 times the activity of mineralization of humus decreases by 6.0 and 10,1 % respectively. With the improvement of mineral nutrition of plants, the amount of root extracts is increased, which is a more accessible substrate than humus acids, which leads to slowing down of the destruction of humus substances.

scholarly journals Humus condition and nutrients regime of leached chernozem depending on sugar beet fertilization

2021 ◽  
Author(s):  
V. V Ivanina . ◽  
◽  
R. M. Shapovalenko ◽  
Keyword(s):  
Sugar Beet ◽  
Humus Content ◽  
Mineral Fertilizer ◽  
Growing Season ◽  
Mineral Fertilizers ◽  
Combined Application ◽  
Leached Chernozem ◽  
Alternative Systems ◽  
Organic Mineral ◽  
The Stability

The aim of the study is to investigate the state of humus and nutrient regime of leached chernozem under traditional and alternative systems of sugar beet fertilization. Field, laboratory and analytical methods were used during the research. The application of straw stabilized the humus content in the upper 0-30 cm layer of leached chernozem, increasing its content compared to the control without straw by 0.08-0.12%. The highest absolute content of humus in the layer of 0-30 cm was achieved by applying 5 t/ha of straw + N50 + N100P100K100 - 3.00% with an advantage to control without fertilizers by 0.13%. The combined application of mineral fertilizers and straw provided the conditions for favorable mineral nutrition of sugar beets at the beginning of the growing season and the stability of their growth and development during the growing season. The content of nitrate nitrogen in the layer of 0-30 cm of soil under the application of 5 t/ha of straw + N50 + N100P100K100 was 23.2 mg/kg, ammonium - 14.4, mobile phosphorus - 96, mobile potassium - 109 with the advantage to control without fertilizers by 5.2, 3.5, 7.0 and 12 mg/kg of soil, respectively. The study of the influence of alternative organic-mineral fertilizer systems on soil fertility parameters is the basis for the development of sustainable sugar beet fertilizer systems in the context of climate change.

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