| Autor: |
KAMINKYI, VIKTOR, SOKYRKO, DMYTRO, HANHUR, VOLODYMYR, YEREMKO, LIUDMYLA |
| Předmět: |
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| Zdroj: |
Agronomy Science; 2021, Vol. 76 Issue 2, p87-99, 13p |
| Abstrakt: |
The aim of the study was to analyze the effect of different amounts of mineral fertilization and inoculation of seeds on the leaf surface area formation and the chickling vetch (Lathyrus sativus L.) productivity. The study engaged two factors. Factor A - fertilization: no fertilizers (control), N15P15K15, N30P30K30, N15P30K30 + N15 (top dressing), N45P45K45 and N30P45K45 + N15 (top dressing). Factor B - seed treatment: pre-sowing seed treatment with water, seed inoc-ulation with microbiological preparation Rhizogumin. The experiment was conducted in a rand-omized complete block design in a split-plot arrangement with three replications. The maximum leaf surface area (60.8 thousand m² ha-1) was in the phase of grain filling in the variant with seed inoculation with microbiological preparation Rhizogumin and application of mineral fertilizers at the rate N30P45K45 + N15 (top dressing). In the absence of inoculation at this level of fertilizer application the leaf area decreased by 4.1 thousand m² ha-1. The highest crop yield of the chickling vetch (2.77 t ha-1) was obtained in the variant with pre-sowing seed inoculation with the microbiological preparation Rhizogumin and mineral fertilizer rate N30P45K45 + N15 (top dressing). The crop yield in this variant increased in comparison with the control by 0.46 t ha-1 which is 19.9%. In the variant with the application of the minimum rate of fertilizers N15P15K15 the grain yield of Lathyrus sativus increased compared with the control by 0.17-0.21 t ha-1 which is 7.7-9.1%. With an average fertilizer rate of N30P30K30, a significant increase in the yield of Lathyrus sativus was noted both in comparison with the control (by 0.27-0.31 t ha-1 or 12.2-13.4%) and the minimum fertilizer rate (by 0.1 t ha-1 or 4.0-4.2%). It was found that the increase in crop grain yield from seed inoculation before sowing with the microbiological preparation Rhizogumin in variants of the minimum fertilization rate was 5.9%, and with the maximum - 6.2%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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