438 



In December, a large quantity of seed was received 

 from Japan and it is hoped to have a further supply of 

 plants available for distribution this year. 



Tapioca (Manihol utilissima). — The manurial experi- 

 ments with tapioca, initiated in June, 1907, were completed 

 during the year with the following resuts : 



I. — Manured When Plants had Commenced to Grow 



Freely. 



Plots 



Planted 



Manur- 

 ed 



Manure 

 applied 



Dist- 

 ance 

 between 

 plants 



Weight 



of 

 green 

 tops 



Weight 

 of stems 



VV eight 

 of roots 



No. of 

 fail- 

 ures 



Roots 

 per 

 acre 

 (say) 











Feet- 



lbs. 



lbs. 



lbs. 





Tons. 



A 



17-6-07 



15-7-07 



N. 



5X2^ 



503 



833 



1,381 



Nil 



7i 



B 



17-6-07 



15-7-07 



N.P. 



5x2i 



663 



1,155 



1,511 



>> 



8i 



C 



17-6-07 





Control 



5x2i 



731 



928 



1,413 



>> 



n 



D 



18-6-07 



15-7-07 



N.P.K. 



5x2i 



450 



664 



1,142 





Si 



II. — Manured 14 Days Before Putting in Cuttings. 



G 



22-7-07 





Control 



5x21 



462 



1,309 



2,047 



20 



9i 



H 



22-7-07 



8-7-07 



N. 



5X2| 



494 



1,134 



1,657 



35 



7i 



J 



22-7-07 



8-7-07 



N.P. 



5x2i 



403 



1,092 



1,281 



60 



5i 



K 



22-7-07 



8-7-07 



N.P.K. 



5x2i 



524 



689 



919 



85 



4i 



Planting Experiments. 



p.8-6-07 

 118-6-07 



Control 



2^x22 



524 1 



749 



1,049 



Nil 



5i 





5 X5 



488 | 



521 



1,145 





6i 



L 



M 



Manured 14 Days Before Putting in Cuttings. 



29-7-07 12-7-07jN.P.K. 2jx2i| 647 | 2,456 | 2,284 | Nil \ 10J- 

 29-7-07 12-7-071 „ 5 X5 Destroyed by Monkeys. 



The manure used, with the rate of application per acre, 

 were as follows : 



No. 1, marked N., 80 lbs. of sulphate of ammonia, con- 

 taining about 20 per cent, nitrogen. 



Xo. 2, marked N. P., 80 lbs. of sulphate of ammonia, 

 100 pounds concentrated superphosphate, con- 

 taining about 40 per cent, phosphotic acid P 2 . 

 O 5 . 



