Potassium regime of irrigated chernozems in various agrotechnical backgrounds

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dc.contributor.authorTsurkan, Oksana I.
dc.contributor.authorBurykina, Svetlana
dc.contributor.authorSuhorukova, Galyna S.
dc.contributor.authorBilanchyn, Yaroslav M.
dc.contributor.authorPiatkova, Alla V.
dc.contributor.authorLeah, Tamara
dc.contributor.authorЦуркан, Оксана Іванівна
dc.contributor.authorБіланчин, Ярослав Михайлович
dc.contributor.authorЦуркан, Оксана Ивановна
dc.contributor.authorБиланчин, Ярослав Михайлович
dc.contributor.authorП'яткова, Алла Вікторівна
dc.contributor.authorПяткова, Алла Викторовна
dc.date.accessioned2019-08-21T06:04:44Z
dc.date.available2019-08-21T06:04:44Z
dc.date.issued2018
dc.description.abstractThe study analyses the changes of the fractional composition of potassium of the main soils of southern Ukraine – ordinary chernozem and southern chernozem under influence of irrigation and fertilization systems. The research was conducted in two stationary experiments, laid on chernozem ordinary (11-year of crop rotation) and on chernozem south (3-year multifactorial experiment). It is established that under the influence of irrigation in ordinary chernozem the sum of groups of potentially available potassium in a layer of 0-30 cm increases by 40.3 and 57.5% in comparison with rainfed conditions. The content of exchangeable potassium in chernozem usually varies considerably depending on the soil moisture (r = - 0.80). The norm of fertilizers – manure 200 t/ha + N200P200K60, introduced under the basic cultivation of the first crop rotation, in the aftermath after 11th year provides a positive balance of exchangeable potassium in ordinary chernozem even with a decrease in the initial content in 2.1 times. In the southern chernozem, the total amount of potentially available potassium is much lower than in chernozem ordinary: 19.0% in the layer 0-30 cm and from 45.5 to 52.6% with a depth of 120 cm. The distribution of the depth and direction of irrigation and fertilizer systems are similar to those of ordinary chernozem.uk_UA
dc.identifier.citationScientific Papers Series Management, Economic Engineering in Agriculture and Rural Developmentuk_UA
dc.identifier.urihttps://dspace.onu.edu.ua/handle/123456789/25032
dc.language.isoenuk_UA
dc.relation.ispartofseries;Vol. 18, issue 4.
dc.subjectordinary chernozemuk_UA
dc.subjectsouthern chernozemuk_UA
dc.subjectirrigation, fertilizersuk_UA
dc.subjectpotassium regimeuk_UA
dc.titlePotassium regime of irrigated chernozems in various agrotechnical backgroundsuk_UA
dc.typeArticleuk_UA
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