OF June July 2021 e

Another study is using data from 2019 and 2020 to help determine the tradeoff between higher densities needed to increase yields versus
increases in the cost of higher seeding rates.
Continued from Page 27
latitudes the plant response in terms
of attained levels of CBD and THC,”
Hutmacher said.
Launch of Hemp Fertilizer
Project in 2021
As a new crop in California, little is
known about crop nitrogen needs and
application optimization to prevent
environmental problems related to
overuse. In 2021, a team of UC Davis
researchers are launching a three-year
nitrogen management trial supported
by the CDFA Fertilizer Research Education
Program (FREP). An important
part of the project is THC and CBD
analysis, a costly enterprise.
Three companies are providing seeds or
clones for the project: Cultivaris Hemp
“Our participation
in these multi-site
trials is important in
efforts to identify
across very diverse
environments and
latitudes the plant
response in terms of
attained levels of CBD
and THC.”
—Bob Hutmacher, UCCE
of Encinitas, Kayagene of Salinas and
Phylos Biosciences of Portland. Alkemist
Labs of Garden Grove is donating
services for analyzing crop samples.
“These are incredibly valuable donations
to assist with this project, certainly
in excess of $50,000 in donated
materials and services from each of
those companies,” Hutmacher said. The
collaboration with the donors makes
the development of environmentally
sound nitrogen optimization information
for growers possible together with
the money provided by CDFA-FREP for
the trials.
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28 Organic Farmer June/July 2021