8 
years' old trees" mostly with a view to trying the effect of lime 
together with artificial manure on light soil, and the various blocks 
received different quantities of kainit, basic slag, bone-meal and 
superphosphate with and without lime. 
This experiment was started in April, 1915. 
With the exception of the blocks receiving lime and kainit 
separately and also those receiving the “two stuffs mixed, all the 
blocks have gained on the check-blocks. 
Lime, as a whole, seems to have done more harm than good, as all 
the blocks to which manure only has been applied show better 
results than those receiving lime as well. 
Kainit does not seem to have had any effect at all and the 
blocks manured with this stuff are losing on the check-blocks. 
The best result is shown on the blocks receiving bone-meal 
at the rate of 400 lbs. per acre, but the effect of the same quantity of 
superphosphate is not far behind. The effect of basic slag and the 
smaller quautites of manures is less apparent, but it is quite 
satisfactory. 
At the time the manure was applied the trees were very 
retarded in growth. The improvement from them until now is very 
marked, and some further effect from the slow-acting manures is 
still to be expected. 
Altogether, 50 plots of two acres each were experimented with. 
5 Plots were kept as check ; 
6 
3 
3 
3 
3 
3 
3 
3 
3 
3 
3 
3 
3 
3 
were manured with Lime, 1,200 lbs. 
Basic slag, 400 lbs,. 
„ 800 lbs. 
Superphosphate, 400 lbs. 
„ 800 lbs. 
Bone-meal, 400 lbs. 
„ 800 lbs. 
Kainit, 1,000 lbs. 
Basic slag 400 and lime 1,200 lhs. 
„ 800 and „ 1,200 lbs. 
Superphosphate 400 lbs. and lime 
1,200 lbs. 
,, 800 „ and lime 
1,200 lbs. 
Bone-meal 400 lbs. and lime 1,200 lbs. 
„ 800 „ and „ 1,200 lbs. 
Kainit 1,000 lbs. and lime 1.200 lbs. 
The experiment on the old trees was carried out on decidedly 
over-tapped and backward trees. It was commenced in November, 
1915, with the double object of improving the growth of trees and 
improving the yield. 
