Effect of foliar products on the inflorescence yield of lavender and essential oil
Laen...
Kuupäev
2022
Kättesaadav alates
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
The topic of the effect of foliar fertilization on the productivity and oil content of
lavender is relevant, but not sufficiently studied. The present study aims to establish the effect of
foliar products on the growth, development and productivity of lavender. The field experiment
was carried out at the Agricultural University - Plovdiv with lavender of ‘Jubileina’ variety during
2019–2020. The following variants were included in the study: 1. Untreated control; 2. Treatment
with Fertileader Gold (FG) - 3 L ha-1; 3. Treatment with Fertiactyl Trium + Fertileader Vital
(FT + FVital) - 1.5 + 1.5 L ha-1; 4. Treatment with Fertileader Viti (FViti) - 3 L ha-1; 5. Treatment
with Fertileader Vital (FV) - 3 L ha-1; 6. Treatment with Fertileader Alpha (FA) - 3 L ha-1. Those
preparations are bio stimulants for foliar application. The treatments were made in two
consecutive lavender vegetation seasons. The first application was carried out in the second
growing season (2019) and the second in the next, third growing season (2020). The foliar
application of all tested products increased the photosynthetic activity, but it was better expressed
when using the plant nutrition products FV, FViti and FT + FVital. A positive effect was also
observed in the height and diameter of the bush, but during the third vegetation period. The
number of flowering stems increased by 62.9%; 59.4%; 53.3% and 8.4%, respectively, when
applying the fertilizers FG, FT + FVital, FViti and FV. The application of FG and FT + FVital
increased the yield of fresh inflorescences by 6.1% and 3.7%. The application of the different
products affected the oil yield in different ways; the application of FG, FT + FVital and FViti
increased it, while FV and FA decreased it by 27 kg ha-1 and 16 kg ha-1, respectively, for the first
vegetation and by 43.4 kg ha-1and 33.1 kg ha-1 for the second vegetation. The boron containing
products FG, FT + FVital and FViti led to a significant increase in the essential oil yield, while
the application of the foliar fertilizers FV and FA reduced it. Based on those results, the first three
products are recommended.
Kirjeldus
Received: January 25th, 2022 ; Accepted: May 1st, 2022 ; Published: May 23rd, 2022 ;
Correspondence: nikiminev@abv.bg
Märksõnad
medicinal crops, Lavandula angustifolia, foliar fertilization, flower yield, oil yield, oil content, articles