Table 42. Amount of Fertiliser per acre. 



Over 50 bundles from each plat were examined, at each 

 collection, in order to find out the average number of culms per 

 bundle. Those bundles which bad an average 'number of culms 

 were cut off level with the surface of the soil. The total yield of 

 100 bundles, at three different stages of the plant's life, is given in 

 the following table : 



Table 43. Total Weight of 100 Bundles. 



It is clear from this table that the production of grain from 

 the first plat is about 1 1 % less than that from the second plat, 

 which was fertilized with a smaller amount of potash ; and the straw 

 is found also to be less in the first plat, to which a greater amount 

 of potash was applied. This is in the agreement with the results 

 of other experiments on fertilizer, which had been conducted for 

 many years in our Station. Pot experiments, in 1912 and in 1914, 

 with spring rice crops were carried out in the Experimental Farm 

 of the Akow Agricultural Association, and gave similar results. 



From a physiological standpoint, it seems that when the nutri- 

 ents absorbed from the soil have a certain balance in the plant's 

 body, there results an^excellent development of the rice plant. Hut 

 a surplus absorption of potash seems to disturb the balance of the 



