CHE REFERENCE LIBRARY - Pole Shift Survival Information

CrFRTAIN ELEMENTS IN NUIHERY PRACTICE 173
greenhouse bench or a garden, whether the plants are orchids
or ferns or raspberries, and whether for one’s own use or for
snle. In North America, the growing of fruit-trees is supposed
to be the chief concern of a nursery. We have had a
continent to transform into or(41ards.
Present, practice ill Sort11 Amerkan m~rst:ries is to use heavy
machinery allcl imp1emeut.s fo1 major operatioils. The mechanical
tractor is used for
road work and sometimes
in fitting the land. Heavy
s0iLcutting tools are emplayed
(Plate XI). Overrow
tillage is facilitated by
Whet4 Ativators (Plate
I\‘). A mechanical peaclk ~ i;
pit planter is invented. -‘--c;-
Root-grafts arc wrapped
1)) njacl~iI~es (Plate 1’). , ^ -.;yL;;ze- 2:..- Ii----.- c
Le;~f-]loppers aye captured - y ‘LiG .5->-:~~~~~~-. Iii&, wncl tlltl old hancL61igging 1)~ means of the
long spades is a thill g of the past in the large-area fruit-tree
plantations. They are drawn by several teams of horses cbr
mules, and sometimr3 l)JV wire &les pulled by stationary
eugines. Two of tile tree ploIvs are shown in Figs. 199 aurl
200, md agairl in Plate XI. Two forms of tree-diggers used
in the Vnited States Forest Servir*c (Ml. -I?!)) are illustratecl
in Figs. 201, WL
1lkwy
ltrlltL!! ill lY!ltlfit~rl to ~“‘o~“‘~tx.tiolr.
The best lard for general nursery purposes is heavy rather
than light, containing a good percentage of clay beneath,