MANURING EXl'ERLMENTS WITH PADDY RICE. 



373 



The development of the plants was essentially the same in the 

 three years during which the experiments were carried on. The 

 plants growing in the plots supplied with a complete manure showed 

 the best development, next to these came the plants without 

 potash, which were much inferior as compared with the former, the 

 difference becoming more and more noticeable as the year advanced, 

 evidently owing to the gradual exhaustion of the .stock of potash in 

 the soil. Then followed, both in point of vigour and height, the 

 plants without nitrogen, which turned pale in an early stage of 

 vegetation and ripened earlier than those grown in the other plots ; 

 and last of all came the plants without phosphoric acid and those 

 without any manure, which showed a most meager development 

 and ripened a little later than the others. The average yield of 

 grain and straw was as follows : 





Slr;i\\ . 

 Grms. 



Full grain, 

 thms. 



Empty 

 grain. 



Grms. 



Whole 

 crop. 



< Irms. 



1892 ; V.'iricly .Satsunin. 











Unmunurcd 



210 



151 



3 



3''>4 



Without phosphoric acid 



264 



1O8 



3 



435 



,, nitrogen 



382 



375 



5 



762 



,, potash 



526 



427 



10 



</>3 





S73 



532 



12 



1)17 



1893 ; Variety Satsuma. 











Unmanured 



108 



61 



I 



170 



Without phosphoric acid 



lOi 



95 



2 



258 



„ nitrogen 



361 



330 



5 



696 



potash 



501 



432 



5 







574 



486 



10 



1070 



1894; Variety Satsuma. 











Unmanured 



315 



296 



S 



619 



Without phosphoric acid 



3O2 



329 



1 6 



707 



,, nitrogen 



449 



382 



9 



840 





587 





'7 



I '-5 



Complete manure 



633 



554 



16 



1203 



