Edaphoclimatic factors determining sunflower yields spatiotemporal dynamics in northern Ukraine

Zimaroieva, A. та Zhukov, O.V. та Fedoniuk, T. та Pinkina, T. та Vlasiuk, V. (2021) Edaphoclimatic factors determining sunflower yields spatiotemporal dynamics in northern Ukraine. Oilseeds and fats, crops and lipids, 28 (26). с. 1-13.

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Резюме

The climate and soil conditions have a significant impact on sunflower yields. Sunflower yield dynamics in the Central European mixed forests (Polissya) and Eastern European forest-steppe coregions in Ukraine from 1991 to 2017 was proved to fit a log-logistic model most adequately. The model has four characteristic parameters: the Lower Limit indicates the lowest level of yield over the study period; the Slope indicates the rate of yield increase over time; the ED50 is the time required to reach half of the maximum yield level and simultaneously the point with the highest rate of yield increase; the Upper Limit shows the highest yield level. The parameters of the yield model are used to meaningfully interpret the causes of yield dynamics. Edaphoclimatic factors account for 34 to 58% of the variation in the yield trend parameters. The soil texture and soil organic carbon (SOC) predominate among the edaphic factors that determine the variability of sunflower yield. Continentality of climate and degree of temperature variability during the growing season are the main climatic determinants of sunflower yield parameters

Тип елементу :	Стаття
Теми:	S Сільське господарство > SB Рослинні культури
Підрозділи:	Хіміко-біологічний факультет > Кафедра ботаніки і садово-паркового господарства
Користувач, що депонує:	Кафедра ботаніки і садово-паркового господарства
Дата внесення:	30 Черв 2021 09:07
Останні зміни:	30 Черв 2021 09:07
URI:	http://eprints.mdpu.org.ua/id/eprint/12045

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