Year 2023, Volume 8, Issue 1
| Year : | 2023 |
| Volume : | 8 |
| Issue : | 1 |
| Authors : | Iliana GERASSIMOVA, Ana KATSAROVA, Zdravka PETKOVA |
| Title : | EFFECT OF FERTILIZATION ON UPTAKE OF MACROELEMENTS WITH SUNFLOWER BIOMASS IN A POT EXPERIMENT WITH HAPLIC VERTISOL |
| Abstract : | The study was conducted in the conditions of pot experiment with Haplic Vertisol soil. The aim was to evaluate the effect of different norms and combinations of nitrogen, phosphorus, potassium and silicon fertilizers in the soil and their impact on the content and uptake of some main macro elements with sunflower biomass. The test culture was an early to medium-early hybrid Sunflower (Helianthus annuus L.) - Sumiko HTS. The experiment includes 16 variants of fertilization with 3 repetitions. Data are obtained on the yield of fresh and absolutely dry biomass from the above-ground part and the content of N, P, K, Si, Ca and Mg in the resulting dry biomass from plants. According to the experimental data obtained, the content and uptake of the examined macro elements with the sunflower biomass are significantly influenced by the imported norms and combinations of fertilizers. The highest is the uptake of nitrogen in the variants with the following norms: N200, N300 and N400.N uptake is the highest also in comparison with all other values of the examined elements.It is established that the changes in the macroelements uptake significantly follow changes in the quantities of the relevant elements in dry biomass in the variants of the experiment. With an increase in fertilization norms, not only the content of N, P, and Si is increased, but also the uptakes with sunflower biomass.This trend is expressed to a lesser extent with potassium. |
| For citation : | Gerassimova, I., Katsarova, A., Petkova, Z. (2023). Effect of fertilization on uptake of macroelements with sunflower biomass in a pot experiment with haplic vertisol. AGROFOR International Journal, Volume 8. Issue No. 1 pp. 76-84. DOI: 10.7251/AGRENG2301076G |
| Keywords : | fertilizers, rates, export by sunflower biomass. “Helianthus annuus, L.” and “macro elements uptake |
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ISSN 2490-3434 (Printed)
ISSN 2490-3442 (Online)
ISSN 2490-3442 (Online)
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