MATHEMATICAL MODEL FOR THE PROSPECTION OF OPTIMAL HUMIDITY IN AGRICULTURAL LAND IN NORTH EAST BULGARIA
Abstract
Determining the optimum field humidity is time-consuming and costly direct measurement procedure. This is the reason why to focus efforts on developing and approving mathematical models to predict optimal field humidity based on the rainfall from the previous two months.
The model presented is based on a multiple linear correlation between three variables. Data on the total rainfall (mm) for July and August 2016 were used at six points for the measurement on Eastern Bulgaria territory, as well as data on productive soil humidity in the layer between 0-20 cm. Established is the existence of a linear dependence between the parameters, the correlation coefficient is determined, the high value of which proves the dependence between the parameters considered under the specific conditions.Keywords
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Botnary, F., 2010. Programmirovanie urozhaev i upravlenie vodnaym rezhimom pri vozdelayvanii ovoshtnayh kulytur.// Buletinul Academiei de Ştiinţe a Moldovei, Ştiinţele Vieţii, nr.3 (312), p.70-80.
Vuchkov, I., S. Stoyanov, K. Velev. Rakovodstvo za laboratorni uprazhneniya po matematichesko modelirane i optimizatsiya na tehnologichni obekti. Sofiya: Tehnika, 1986, 104 s
Globus, M., 1987. Pochvenno-gidrofizicheskoe obespechenie agroekologicheskih matematicheskih modeley. L.: Gidrometeoizdat, 427 s.
Kaziev, V., S. Kiryyazeva, D. Kiryyazev, 2017. Matematicheskoe i kompyyuternoe modelirovanie produktivnosti rasteniy v zavisimosti ot dinamiki vlazhnosti pochvay, Moskovskiy gosudarstvennayy universitet imeni M. V. Lomonosov
Kachinskiy, A., 1970. Fizika pochvay. Ch. 2. Vodno- fizicheskie svoystva i rezhimay pochvay. M.: Vaysshaya shkola, 358 s.
Laktionov, S., A Vovna. 2014. Sposob umenysheniya dopolnitelynoy pogreshnosti izmeritelya vlazhnosti pochvay oranzherey botanicheskogo sada. Naukovі pratsі Donetsykogo natsіonalynogo tehnіchnogo unіversitetu. Serіya : Obchislyuvalyna tehnіka ta avtomatizatsіya. № 2. - S. 183-191.
Laktionov, S., V.Turupalov, 2014. Razrabotka i issledovanie maketnogo obraztsa izmeritelya vlazhnsti pochvay // Zbіrnik naukovih pratsy Donetsykogo іnstitutu zalіznichnogo transportu ukraїnsykoї derzhavnoї akademії zalіznichnogo transportu. Donetsyk, № 38. S. 13–19.
Nedev, As., i dr. 1999. Vavedenie v teoriyata na upravlenieto RTSDO, TU-Varna. 315 s.
Nenov, M., 2008. Otsenka na vodnofizichni, toplinni i elektricheski svoystva na pochvata pri agrotehnicheski i hidromeliorativni vazdeystviya, Avtoreferat
Safronova I., V. Stepanov., 2012. Matematicheskoe modelirovanie v zadachah agrofiziki, Krasnodar, Ministerstvo selyskogo hozyaystva RF FGBOU VPO «Kubanskiy gosudarstvennayy agrarnayy universitet»
Kirkham, B. Principles of soil and plant water relations. San Diego: Elsevier Academic Press, 2005. – 519 p.
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New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria - contract № КП-06-НП1/5 of 17.12.2019 in the competition of Bulgarian scientific periodicals – 2019
New knowledge Journal of science is financed by the National Science Fund of the Republic of Bulgaria – contract № ДНП 05/52 от 22.12.2016 in the competition of Bulgarian scientific periodicals – 2016
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