° ^ HE Colorado Experiment Station. 
work better in the machines. It is claimed by some that this treat- 
ment reduces the rotting - of the seed.* 
planting. 
1 lachme Planters are universally used in Colorado The chief 
“T h “ “ /'” d be ,oo " d 
sive it would nnM a3 f e, .r Ut ^ ^ an< ^ were not too expen¬ 
se, it would not be satisfactory as machines do much better work 
than could be accomplished by hand. With the planter the soil is 
l ,r z:\ ^ » d wiii:. 
effects of the atln t’ “A — ls 110 opportunity for the drying 
of the nhn s lv£ SP T , mjUre the chance for the germination 
is very lhb e to he ere ? l T “J? hand droppin g is used the soil 
is \eiy liable to become dried, as the planted tuber is in most cases 
covered with dry soil. ases 
r ^ lc ^ cf Planters. The Aspinwall, Evans Superior and 
different^ delaTa IP® ° f , the P , icker planter ’ and whife each is 
erent m detail and some have been more thoroughly tried out 
han others, they all do practically the same work, are al at omadc 
and only require one man for operation automatic, 
Non Picker Type .-The Robbins Planter feeds the seed bv 
dropping from between the spokes of a horizontal wheel and re - 
accur S acvof C th C n| la, l the dro P. 80 that in this case the 
n 'hi! t n/ , anter de P«ids oil the accuracy of the operator t 
De Pth of Planting .—No hard and fast rule can be laid down as 
to the depth to plant potatoes. Much depends upon the moisture 
and soil conditions., and slope of the land. Ordinarily where the 
ter of froTis S ° ** &S m ° istUre is concerned, and dan- 
g f f , V • P ssed ’ two or two and one-half inches beneath the 
surface level ,s sufficient depth, while on flat land in good c^m 
dition, potatoes are sometimes planted only one inch deeph Where 
tlie soil is apt to dry out, or where planting in dry soil it'is neces 
sary to go deep in order to insure moisture. Yep growing va- 
Ue YYYtY ‘Y- p,anted as dee P>y a s more shallow kimls. 
i . c Higher Altitudes .—Where there is enough fall to keen 
withffolAeffiTt 6r be t d f nd Whe, ', e tlle gr ° Und is apt to be touched 
_ before the potatoes are dug in the fall, it is well to plant 
PotatoYconcerled AT bAAW ? YttV cu tWrfaeT o?The 
other materials, at the^ Bxnerfmenta, a ‘ S ° triecb alon « ™th 
mixture did not prove Ltfefacto^ « th» th e year of 1907. This 
tended to shrivel the Potatopq anri’m popper sulphate in the mixture 
+ Q e P° tatoe s and apparently decreased their vitality 
standl^o b ta^in ed' S by Iff e °enf m achines YthY Yi”', Y the per cent ’ ot 
ParYiY “ a " d ^arhondaie; Wl Y Y a f S 
below^he Surface ?s mTanYand ‘Tot depth ViewThYYnter 
