TheImprovement ofTropical and Subtropical Rangelands

RBllABILlTATlON TEOHNIQUES 155
Advantac..
Limitationa
1. Relatively cheap
to operate
2. Breakace free
under nonnal
operation
1. Penetration il
limited on dryI finetextured
loils
2. Not effective on
rocky lOils or areal
with hard pan near
lurface
S. Soil dilturbance
not lufficient for
aeedinr in conjunction
with pittinr
1. All partl are
Itandard, can be
purchued locally
2. Seedinr can be
done in conjunction
with pittinr
3. Hydraulic control
enabl.. unifonn
control of depth
of pitI
1. Limited to slopes
of 1... than SO percent
2. Will not work in
areal of brush infestationl;
brush balls
up in the dilk
4. Oppolite dilc
eliminat.. lide
draft
1. Units can be
moved in pickup
2. Self-deaninr
of limbe and tralh
1. Will operate in
rocky areu with
very little
maintenance
1. DilCembile
IUrface rip
1. Self-penetrating
tooth will not work in
rocky or froBen soil
1. Pull type difficult
to move from area
to area
1. Not luited to
rocky areal
2. 26 em tube at
72 em that fradures
1 m each way