Control over grape yield in the north-eastern region of Ukraine using mathematical modeling
Електронного архіву Харківського національного університету радіоелектроніки (Open Access Repository of KHNURE)
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Control over grape yield in the north-eastern region of Ukraine using mathematical modeling
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| Creator |
Shulika, В.
Vysotska, O. Porvan, A. Nekos, A. Zhemerov, А. |
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| Subject |
A grape culture
Control over yield Harvest prediction Information system Logistic regression |
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| Description |
In the practical cultivation of cultures, including grapes, prediction is an inherent attribute, since, under weather actions, it is possible to immediately take measures before one or another degree of the vegetation of culture is affected. In order to develop mathematical software of an information system for determining the probability of reduction in the yield of grapes, we observed the annual variation in temperatures. Moreover, to manage this process, its comparison was conducted with the development of grapevine by the phases of its development for 16 years. By employing the method of binary logistic regression, we revealed three most significant indicators (radiation background, the sum of efficient temperatures during flowering, annual total precipitation in the previous year), which were included into the mathematical model developed. The results obtained make it possible to estimate the risk of reduction in the harvest of grapes, which is grown under conditions of the Northeastern forest-steppe region of Ukraine (Kharkiv region). The developed model as a whole and its separate coefficients are statistically significant. It is also established that all the predictors, in accordance with the chi-squared test, impact the prediction of reduction in the yield of grape. The obtained results might be used when making a decision about the need of change in the agrotechnical methods for the purpose of improving productivity by changing the course of specific phases in the vegetation of grape. На підставі встановленого взамозв'язку між основними метеорологічними показниками та врожаєм виноградної культури було розроблено математичне забезпечення інформаційної системи для управління врожайністю. Таке управління дозволяє впливати на агротехнічні заходи з метою збільшення врожайності, шляхом зміни протікання певних фаз вегетації винограду. На основании установленной взаимосвязи между основными метеорологическими показателями и урожаем виноградной культуры было разработано математическое обеспечение информационной системы для управления урожайностью. Такое управление позволяет влиять на агротехнические мероприятия с целью увеличения урожайности, путем изменения протекания определенных фаз вегетации винограда |
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| Date |
2018-06-07T16:59:27Z
2018-06-07T16:59:27Z 2017 |
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| Type |
Article
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| Identifier |
Shulika В., Vysotska O., Porvan А., Nekos А., Zhemerov А. Control over grape yield in the north-eastern region of Ukraine using mathematical modeling // Eastern-European Journal of Enterprise Technologies. 2017. №2/3 (86). С. 51-59. DOI: 10.15587/1729-4061.2017.97969
http://openarchive.nure.ua/handle/document/5976 |
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| Language |
en_US
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