1905.] Function of Silica in the Nutrition of Cereals. 477 



Table X.— Hoos Field Barley. Season 1904. 



Percentage of Silica in Dry Matter. 





No silica. 



With silica. 



Date 

 of sample. 



Plot 1. 

 Nitrogen 

 only. 



Plot 2. 



No 

 potash. 



Plot 3. 

 No 

 phosphate. 



Plot 4. 

 Complete. 



Plot 1 S. 

 Nitrogen 

 only. 



Plot 2 S. 



No 

 potash. 



Plot 3 S. 



No 

 phosphate. 



Plot 4 S. 

 Complete. 









In Grain. 











July 4... 



„ 11... 



„ 18... 



„ 25... 

 Aug. 1... 



», 8... 



0-331 



0-335 

 -294 

 0-301 

 0-339 



0-920 

 0-680 

 0-442 

 -329 

 0-403 

 0-475 



0- 344 



1- 016 

 0-501 

 -448 

 0-382 

 0-339 



0-730 

 0-620 

 0-621 

 0-336 

 0-388 

 0-417 



0-876 

 0-800 

 0-466 

 0-484 

 0-433 

 0-443 



1 -216 

 0-712 

 0-631 

 -536 

 0-521 

 0-548 



0-657 

 0-696 

 0-486 

 -384 

 0-337 

 0-419 



1 -236 

 0-777 

 0-630 

 "493 

 0-558 

 -468 









In Straw and Roots. 









June 13... 



„ 20... 



„ 27... 

 July 4... 



„ 11... 



„ 18... 



„ 25... 

 Aug. 1... 



„ 8... 



1 -541 



1- 506 

 1 -242 

 1 191 

 1 -415 

 1 -643 

 1 -809 



2- 210 

 1 -572 



1-523 

 1 -515 

 1 -502 

 1 -528 



1- 974 



1 -966 



2- 214 



2 -203 

 1 -690 



1 -619 

 1 -764 

 1-299 



1- 368 

 1 -604 

 1 -404 



2- 085 



1- 858 



2- 356 



1 -516 

 1 -596 

 1-259 



0- 907 

 1 -578 

 1 -569 

 1 -954 



1- 915 



2- 033 



1 -850 

 2-161 

 1 -762 



1 -988 



2 -516 

 2 656 

 2-678 



2- 985 



3- 028 



2-686 

 2-487 

 2-391 



2- 784 

 2 -527 

 2 -905 



3- 069 

 3-550 

 3-874 



1 -937 



1- 932 

 1 -881 



1 -767 



2 -124 

 2 -388 

 2 -462 

 2 -644 



2- 748 



1 -969 



1 -843 

 2-084 



2- 257 



2 -280 

 2 -558 

 3*291 



3- 171 

 2-923 



