49 



in the bran, but only 8 % in the chaff And in still greater contrast, 

 about one third of the total potash is accumulated in each of the 

 parts of the grain. Thus, 10^%" of all the nitrogen in the grain, 

 8% of all the phosphoric acid, and $2% of all the potash are used 

 for the formation of the chaff. 



The percentages of nitrogen, and of phosphoric acid, and of 

 potash, in each part of the rice plants from the plats A and B were 

 compared, and their differences are shown in the following table : 



Table 41. Difference between Percentages of 



Ingredients in the same Parts of the Rice Plants obtained 



from Plats B and A. 



This table indicates that at an early stage of growth the per- 

 centages of nitrogen, phosphoric acid and potash in the rice plants 

 raised on plat A, on which soy bean cake was used as a nitrogenous 

 fertilizer, are greater than those from plat B, which was manured 

 with ammonium sulphate. On -these two plats the percentages of 

 potash, especially in -the stems at successive stages of growth, differ 

 in a marked way, the percentages in the stems from plat A being 

 much greater than those from plat B Even at maturity the dif- 



