Part II] Hole: Regeneration of Sal (Shorearobusta) Forests 25 
(6) Burning off the soil covering of dead leaves in the forest does not 
decrease the number of surviving seedlings but reduces 
their height-growth see para. 23(7). 
Experiment No. IV. 
Object to test the advantages of starting seedlings under shade and then 
opening the cover. 
25. It has been suggested that, in order to avoid the danger of a 
heavy weed growth, it may be advisable to start the seedlings under 
shade and to open the overhead cover only when a sufficient stock of 
seedlings is already on the ground. The object of the present experi¬ 
ment was to test the advantages or otherwise of this procedure. The 
areas utilized in this experiment were beds (2) and (3) in Plot VI (see 
Ind. For. Rec. V, 4, Part 2, 1916, pp. 61, 73 and Plate IV) which is 
a shade plot similar to plot V dealt with in the last experiment, and from 
which it is only 39 yards distant. The light intensity was 0'05 as com¬ 
pared with 0-06 in Plot V. 
26. The work done and observations recorded are as follows :— 
Plot VI. 
( 2 ) 
(3) 
Plot Number. 
Humus removed 
2 years and the 
last time by 
burning, soil 
once dug before 
sowing. 
Humus removed 
2 years by 
brushing and soil 
once dug before 
sowing. 
Light intensity 
Date of sowing 
0-05 
June 24th, 1913. 
Number of seeds sown 
Number of healthy plants in 
April 1916. 
Height of plants in April 1916 
in inches. 
Work done May 10th to 16th, 
1916. 
} 
1 
} 
400 
48 
40 r 
29 (a) 
1-75 to 9-5 
All standing trees 
3 to 10-5 
and shrubs felled 
and overhead cover completely 
iemoved from the plot in a patch 
60 feet in diameter. 
Work done June 13th, 1916 
Work done June 13th, 1916 
All dead leaves removed from plot 
by brush ing (b) 
Soil not hoed . 
Soil around the 
plants hoed. 
Number of living plants on 
July 23rd, 1916. 
Number of living plants in 
June 1918. 
Remarks. 
(a) From this bed 50 plants 
had been previously re¬ 
moved for examina¬ 
tion ; of these, 7 plants 
would probably have 
survived, thus making 
the probable number of 
survivals in this plot 3 6 
in April 1916 instead Si 
the 29 actually existing. 
This is on the assump¬ 
tion that the mortality 
among the 50 plants 
removed would have been 
proportionate to that 
among the rest of the 
plants. 
- ( b) The annual leaf- fall was 
removed by brushing 
from both areas also in 
1914 and 1915. 
Average height of surviving ) 
plants in June 1918, in inches S 
10 
(8-5 to 13) 
[ 187 ] 
