304 
'Fhe  Wohitrn  Field  Experiments,  1903. 
“ Selected  Giant.”  The  two  former  are  earlier  varieties  than 
the  “ Selected  Giant,”  but  they  gave  a very  poor  plant,  and  the 
crop  was  practically  done  for  before  spraying  could  l)e  carried 
out  properly.  The  “ Selected  Giant  ” was  the  only  variety  to 
give  a half-decent  crop  and  to  show  any  effects  of  spraying. 
The  following  results  are  consequently  the  only  ones  that  call 
for  attention  : — 
Produce  of  Tubers  per  acre 
Variety 
Treatment 
Saleable 
Pig 
Diseased 
Total 
“Selected  Giant” 
not  spraj’ed 
T.  c.  q.  lb. 
3 11  3 4 
C.  q.  lb. 
IG  0 8 
0.  q.  lb. 
8 2 8 
T.  c.  q.  lb. 
4 IG  1 20 
(Manure  from 
high-fed  bullocks) 
n o 
sprayed 
4 18  2 8 
9 0 12 
5 3 16 
5 13  2 8 
“Selected  Giant” 
not  sfirayed 
2 7 2 20 
7 3 2 
8 3 10 
3 4 14 
( Manure  from 
low-fed  bullocks) 
sprayed 
3 SI  0 12 
7 2 0 
3 0 24 
3 19  3 8 
In  the  above  the  lessening  of  disease  through  the  spraying, 
as  also  the  increase  of  crop,  are  clearly  l)rought  out,  just  as 
has  been  the  case  in  former  years. 
“ Finger- and-Tob”  in  Turnips  {Giieat  Hill),  1903. 
In  1903  these  experiments  were  continued  and  further 
extended.  Hitherto,  six  plots  of  ground  had  been  occupied, 
these  including  two  untreated  plots.  One  of  these  was  now 
utilised  for  trying  the  effect  of  lime  drilled  in  at  the  same  time 
as  the  seed,  and  a fresh  (seventh)  plot  was  added,  on  which 
it  was  decided  to  give  a trial  to  the  new  material,  “basic 
superphosphate.”  Basic  superphosphate  is  ordinary  mineral 
superphosphate,  the  aciditj"  of  which  has  been  neutralised  by 
the  intimate  mixing  with  it  of  finely-divided  lime.  By  its  use 
it  is  claimed  that  the  ill  effects  of  using  an  acid  manure  like 
superphosi)hate  on  land  naturally  deficient  in  lime  will  be 
avoided,  and  at  the  same  time  the  needed  addition  of  lime  to 
the  soil  will  be  effected  in  a ready  and  convenient  manner. 
In  considering  the  result  of  the  trial  instituted  in  1903,  it  has 
to  be  borne  in  mind  that  a fresh  portion  of  land  was  taken  in 
for  the  basic  superphosphate  plot,  this  land  not  having  had, 
like  the  others,  roots  grown  upon  it  each  successive  year  for 
some  time  past.  Accordingly,  it  was  not  to  be  supposed  that 
this  new  plot  would  be  as  badly  infected  with  “finger-and-toe” 
as  the  others. 
Lime  (2  tons  to  the  acre)  was  applied  to  plot  2,  gas  lime 
(2  tons  per  acre)  to  plot  4,  and  basic  slag  (10  cwt.  per  acre)  to 
