Uman NUH | today: 12/22/2024
| Author(s) |
Ulyanych O.I., Doctor of Agricultural Sciences, Professor, Head of Department of of Vegetable Production, Uman National University of Horticulture, Ukraine Ковтунюк З.І., , , Яценко В. В., , , |
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| Category | The Agronomy | ||
| year | 2023 | issue | Issue number 102. Part 1 |
| pages | 179-189 | index UDK | 635.41 : 631.53.04 | DOI | 10.32782/2415-8240-2023-102-1-179-189 (Link) |
| Abstract | The study was conducted in 2019–2021, in the conditions of the Southern Steppe of Ukraine. The results on the influence of sowing date on the plans productivity of spinach are presented. For our research were used field, statistical, calculation-analytical and laboratory methods. Hybrids Boa F1 and Odysseus F1 were studied. We studied the behavior of plants after six sowing dates. The conveyor growing of spinach should ensure an uninterrupted supply of fresh green products during the spring-summer-autumn period. First sowing was conducted at first decade of April. Second sowing was conducted at third decade of April. Four next sowing were done at second decade of May, at second decade of June, and first decade of August and the last one at third decade of August. Control variant was Boa F1 hybrid after sowing date at first decade of April. We found that plants of both spinach hybrids had a larger more leaves and leaf surface during the early sowing dates. At the phase of beginning of rosette growth it was 114.2–127.7 cm2. At the same time plants which were sown in August had a smaller more leaves and leaf surface – 86.0–106.2 cm2. The highest yield of marketable green mass was obtained for sowing in the III decade of April and the II decade of May depending on the hybrid. So, the Boa F1 hybrid provided 22.9–23.0 t/ha, and the Odysseus F1 hybrid provided 23.3–23.9 t/ha. Such yield was higher than the control variant by 3.2–4.2 t/ha. Such practice of conveyer sowing of spinach can be recommended to agricultural producers who grow vegetables for to extend the terms of receipt of fresh greens from early spring to autumn from – the third decade of April to the end of September, and in some years even until mid-October. | ||
| Key words | : spinach, hybrid, sowing date, growth, leaves number, leaves surface, yield | ||