12 
IMPERIAL COLLEGE OF 
II UPLAND RICE. 
Upland rice was sown on 24 plats June 2nd 1887, of which 
22 were manured and two without manure. 
Soil. —a light, porous, volcanic tufa, containing about 8 olo 
of humus. It was cropped with sweet potatoes in 1886, and 
had then received a light coating of barnyard manure. The 
plats were 18 by 20 feet in extent (360 square feet). Three' 
foot paths, which intersected one another at right angles, 
separated each plat from its neighbors. 
The Fertilizers consisted as in the case of irrigated rice, 
of nitrogen, potash and phosphoric acid. In this case the 
nitrogen was in the form of nitrate of soda, but the other two 
elements as before, in the shape of carbonate and superphos¬ 
phate respectively. Each plat had 10 rows of rice, the rows two 
feet apart, and was subdivided into 5 divisions, a, b, c, d and e, 
each of which thus had two rows. The fertilizers were first 
weighed out for the whole plat; then divided by weight into 
five equal parts, corresponding to the five divisions, and thus 
applied. This was done, first, to note the variation in adjacent 
rows similarly treated and, secondly, for the purpose of testing 
the relative merits of the two common methods of applying 
artificial manures, viz. broadcasting and drilling. Divisions 
a, b and c were in all cases broadcasted, and divisions d< 
and e had the fertilizers applied in the drills with the seed. 
The broadcasted fertilizers were worked into the surface 
soil before the drills were opened and the seed sown. The 
24 plats were divided into two series; series A including 
plats 1 to 12 and series B plats 13 to 24. Corresponding 
plats in the two series were manured with the same 
substances, the only difference being that the plats in series B 
received just twice the quantity given to the plats in series A. 
In table I corresponding plats of the two series are placed side 
by side to facilitate comparison. Plats 7 and 18 had no manure 
and the average of the two is taken as the standard of com¬ 
parison for ascertaining the influence of the manures. 
