5.
Conclusions
A lot of different factors are influencing both the yield
and the quality of essential hemp oil.
The first point to pay attention to is the selection of
the strain. Within the broad range of varieties there is
also a broad range of different smells. The tested
strains Kompolti, Félina 34 and Futura 77 smelled quite
pleasent and yielded appropriate amounts, but there might
be many other varieties leading to similar or even better
results.
Under our conditions we recommand a seed density of 5
kg/ha. At this rate yield is highest, but it is not clear
whether it influences the quality.
The prevention of pollination would be another approach
to increase the yield. However it is nearly impossible to
carry out in the field.
The weather is expected to have a major impact at least
on the yield. A fairly dry period between the beginning
of female flowering and seed maturity is desired.
A very important point to heed is the harvest time. For a
maximal yield the flowers should be harvested when about
50% of the seeds are matured, shortly before seed
maturity (75% matured seeds). To gain an optimal scent
quality it is recommended to harvest a half to three
weeks earlier depending on the strain. If the daily
harvest time also influences the yield and the quality
has to be tested.
Harvesting of the flowers and separating them from the
stems by hand results in a very good smell quality.
Harvest by machine is faster, but the distillation of
both chopped flowers and stems decreases the quality.
Distillation equipment and water is said to have an
impact on the quality, too.
Table 4 summarizes the factors influencing the yield and
the quality of essential hemp oil.
Table 4 Factors influencing yield and quality of
essential hemp oil
Titel
Abstract
1.Introduction
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2.Material&Methods | 3.Results | 4.Discussion | 6.References | 7.Acknowledgements
Contact
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