TY  - JOUR
AU  - Turan, Jan
AU  - Višacki, V.
AU  - Burg, P.
AU  - Findura, P. J.
AU  - Sedlar, Aleksandar
AU  - Rajković, Miloš
AU  - Zach, M.
PY  - 2017
UR  - http://fiver.ifvcns.rs/handle/123456789/1717
AB  - Sowing is affected by numerous factors, and thus high-quality sowing is a very important task for agricultural engineers and managers of profitable agricultural production. The primary purpose of sowing is placing seeds at proper depths and in-row spacings in well-prepared soil. Plant population particularly gives prominence to sowing as it directly affects the uniformity of plant growth and development. Soybean planting is especially dependent on the quality of planting for yield formation due to the significant vicinity of seeds. Provided all external factors of high-quality sowing are met, i.e. sowing conditions, the quality of sowing depends upon the planting mechanism. The following features of the planting mechanism are the most important: RPM of the seed disc, the travel speed of a seeder, and the values of gauge and vacuum pressure. This paper presents the results of sowing three different fractions of soybean seeds under laboratory conditions. The quality measurement of sowing was performed at different values of vacuum pressure and RPM of the seed disc. On balance, an increase in vacuum pressure results in improved sowing quality due to a stronger adherence of seeds to the seed disc. Lower values of vacuum pressure do not exert significant effects on the quality of sowing, regardless of the seed fraction. However, higher RPM of the seed disc entail an increase in the coefficient of variation. On the basis of the results obtained, a mathematical model for predicting changes in the coefficient of variation of sowing quality was developed using different operating parameters.
PB  - Mendel University of Agriculture and Forestry Brno
T2  - Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
T1  - Development of a soybean sowing model under laboratory conditions
EP  - 962
IS  - 3
SP  - 957
VL  - 65
DO  - 10.11118/actaun201765030957
ER  - 

@article{
author = "Turan, Jan and Višacki, V. and Burg, P. and Findura, P. J. and Sedlar, Aleksandar and Rajković, Miloš and Zach, M.",
year = "2017",
abstract = "Sowing is affected by numerous factors, and thus high-quality sowing is a very important task for agricultural engineers and managers of profitable agricultural production. The primary purpose of sowing is placing seeds at proper depths and in-row spacings in well-prepared soil. Plant population particularly gives prominence to sowing as it directly affects the uniformity of plant growth and development. Soybean planting is especially dependent on the quality of planting for yield formation due to the significant vicinity of seeds. Provided all external factors of high-quality sowing are met, i.e. sowing conditions, the quality of sowing depends upon the planting mechanism. The following features of the planting mechanism are the most important: RPM of the seed disc, the travel speed of a seeder, and the values of gauge and vacuum pressure. This paper presents the results of sowing three different fractions of soybean seeds under laboratory conditions. The quality measurement of sowing was performed at different values of vacuum pressure and RPM of the seed disc. On balance, an increase in vacuum pressure results in improved sowing quality due to a stronger adherence of seeds to the seed disc. Lower values of vacuum pressure do not exert significant effects on the quality of sowing, regardless of the seed fraction. However, higher RPM of the seed disc entail an increase in the coefficient of variation. On the basis of the results obtained, a mathematical model for predicting changes in the coefficient of variation of sowing quality was developed using different operating parameters.",
publisher = "Mendel University of Agriculture and Forestry Brno",
journal = "Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis",
title = "Development of a soybean sowing model under laboratory conditions",
pages = "962-957",
number = "3",
volume = "65",
doi = "10.11118/actaun201765030957"
}

Turan, J., Višacki, V., Burg, P., Findura, P. J., Sedlar, A., Rajković, M.,& Zach, M.. (2017). Development of a soybean sowing model under laboratory conditions. in Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
Mendel University of Agriculture and Forestry Brno., 65(3), 957-962.
https://doi.org/10.11118/actaun201765030957

Turan J, Višacki V, Burg P, Findura PJ, Sedlar A, Rajković M, Zach M. Development of a soybean sowing model under laboratory conditions. in Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. 2017;65(3):957-962.
doi:10.11118/actaun201765030957 .

Turan, Jan, Višacki, V., Burg, P., Findura, P. J., Sedlar, Aleksandar, Rajković, Miloš, Zach, M., "Development of a soybean sowing model under laboratory conditions" in Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 65, no. 3 (2017):957-962,
https://doi.org/10.11118/actaun201765030957 . .

TY  - JOUR
AU  - Turan, Jan
AU  - Findura, P. J.
AU  - Đalović, Ivica
AU  - Sedlar, Aleksandar
AU  - Bugarin, Rajko
AU  - Janić, T. V.
PY  - 2011
UR  - http://fiver.ifvcns.rs/handle/123456789/1037
AB  - This paper presents laboratory investigations of grain size distribution, content change, as well as the change of static and dynamic angle of repose of mineral fertilizers Carbamide (CO(NH2)(2)), calcareous ammonium nitrate (NH4NO3 + CaCO3, 60:40), and ammonium nitrate (NH4NO3) depending on the hygroscopic influence of environment le on the increased moisture of the fertilizers. Using charts, the functional dependence and the statistical data were analyzed. The conclusions are satisfactory, suggesting ways to overcome the discussed problem, and motivate further investigations in this field.
T2  - International Agrophysics
T1  - Influence of moisture content on the angle of repose of nitrogen fertilizers
EP  - 204
IS  - 2
SP  - 201
VL  - 25
UR  - https://hdl.handle.net/21.15107/rcub_fiver_1037
ER  - 

@article{
author = "Turan, Jan and Findura, P. J. and Đalović, Ivica and Sedlar, Aleksandar and Bugarin, Rajko and Janić, T. V.",
year = "2011",
abstract = "This paper presents laboratory investigations of grain size distribution, content change, as well as the change of static and dynamic angle of repose of mineral fertilizers Carbamide (CO(NH2)(2)), calcareous ammonium nitrate (NH4NO3 + CaCO3, 60:40), and ammonium nitrate (NH4NO3) depending on the hygroscopic influence of environment le on the increased moisture of the fertilizers. Using charts, the functional dependence and the statistical data were analyzed. The conclusions are satisfactory, suggesting ways to overcome the discussed problem, and motivate further investigations in this field.",
journal = "International Agrophysics",
title = "Influence of moisture content on the angle of repose of nitrogen fertilizers",
pages = "204-201",
number = "2",
volume = "25",
url = "https://hdl.handle.net/21.15107/rcub_fiver_1037"
}

Turan, J., Findura, P. J., Đalović, I., Sedlar, A., Bugarin, R.,& Janić, T. V.. (2011). Influence of moisture content on the angle of repose of nitrogen fertilizers. in International Agrophysics, 25(2), 201-204.
https://hdl.handle.net/21.15107/rcub_fiver_1037

Turan J, Findura PJ, Đalović I, Sedlar A, Bugarin R, Janić TV. Influence of moisture content on the angle of repose of nitrogen fertilizers. in International Agrophysics. 2011;25(2):201-204.
https://hdl.handle.net/21.15107/rcub_fiver_1037 .

Turan, Jan, Findura, P. J., Đalović, Ivica, Sedlar, Aleksandar, Bugarin, Rajko, Janić, T. V., "Influence of moisture content on the angle of repose of nitrogen fertilizers" in International Agrophysics, 25, no. 2 (2011):201-204,
https://hdl.handle.net/21.15107/rcub_fiver_1037 .