2019
DOI: 10.32851/2226-0099.2019.107.44
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Investigation of the Agro-Ecological Effect of Long-Term Use of Fertilizers on the Potassium Fund of Podzolic Chernozem

Abstract: к.с.-г.н., Уманський національний університет садівництва Василенко О.В. -к.с.-г.н., доцент, Уманський національний університет садівництва У статті наведено результати досліджень впливу тривалого застосування різних систем удобрення та різних доз добрив на зміну у структурі калійного фонду чорнозему опідзоленого Правобережного Лісостепу України. Досліджено зміну різних форм калію залежно від удобрення та за профілем ґрунту. Проаналізовано залежності легкорозчинних форм калію від рухомих та рухомих від необмін… Show more

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“…However, this dosage is insufficient to enhance the level of readily soluble potassium in the soil. The potassium contained in manure is part of organic matter, which is more difficult to transfer to the soil solution, and therefore plants in such conditions use other forms of potassium compounds in chernozem (Nikitina & Vasylenko, 2019). The authors' research revealed an insignificant, average relationship between the content of mineral nitrogen in the 0-25 cm layer and sunflower yield (r = 0.41 ± 0.24), but a significant strong relationship was established between the content of mobile phosphorus in the 0-25 cm layer and sunflower yield (r = 0.87 ± 0.13), exchangeable potassium and sunflower yield (r = 0.72 ± 0.18).…”
Section: Crop Rotation Fruit Crop Rotation Grain-row Crop Rotation Sp...mentioning
confidence: 99%
“…However, this dosage is insufficient to enhance the level of readily soluble potassium in the soil. The potassium contained in manure is part of organic matter, which is more difficult to transfer to the soil solution, and therefore plants in such conditions use other forms of potassium compounds in chernozem (Nikitina & Vasylenko, 2019). The authors' research revealed an insignificant, average relationship between the content of mineral nitrogen in the 0-25 cm layer and sunflower yield (r = 0.41 ± 0.24), but a significant strong relationship was established between the content of mobile phosphorus in the 0-25 cm layer and sunflower yield (r = 0.87 ± 0.13), exchangeable potassium and sunflower yield (r = 0.72 ± 0.18).…”
Section: Crop Rotation Fruit Crop Rotation Grain-row Crop Rotation Sp...mentioning
confidence: 99%