Drug Plants Under CultivationStockberger, W. W. (Warner Webster)
Science
Drug Plants Under Cultivation
Stockberger, W. W. (Warner Webster)
Botany, Medical; Medicinal plants -- Culture -- United States
About the first of September, or somewhat earlier if conditions permit,
the land should be well plowed and thoroughly worked down with a disk
harrow. Just before the seeds are planted it should again be worked
over and all roots of Bermuda grass or other weeds removed, since
rapidly growing grasses or weeds will absorb so much moisture from the
soil that the seeds can not germinate.
The seeds begin to ripen during the first part of October and are
usually in a fairly well ripened stage by the last of that month. From
this time until the heavy frosts they can be gathered and planted
with safety. Seeds gathered after heavy frosts have been planted
successfully, but it is not advisable to take the risk of too hard
a freeze. In determining the time to gather seed a simple test is
sufficient. Seeds that fall into the hand when the cluster is slightly
twisted are ripe enough to plant.
In planting, a cotton-dropping machine, modified somewhat to meet the
new requirements, may be used. The machine is set to plant the seeds 2
or 3 inches apart and cover them 1 inch deep in rows far enough apart
to permit horse cultivation. The plants begin to come up in about three
months, but four or five months are often required for a full stand.
As soon as the plants can be distinguished in the rows cultivation is
begun, which at first is done by hand with either a wheel or hand hoe.
Later, as the plants attain size, a horse cultivator can be used, but a
certain amount of handwork is necessary throughout the time the plants
remain in the seed bed. When the plants are well started they should
receive a good application of sheep or goat manure or of high-grade
fertilizer.
The first season a growth of from 3 to 18 inches may be expected,
the irregularity of development depending on the vitality of the
seed, variation in the soil, and numerous other factors. The plants
are allowed to grow in the seed bed usually for a year and are then
transplanted to the field. In transplanting it is customary to separate
the plants into two grades, "sturdy" and "weak," planting each grade
in a field by itself. By doing this the replanting is simplified,
since the sturdy stock requires but few trees for replanting and the
weak stock, which will require considerable replanting, is all in one
section.
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