hese colour photographs taken in June, 1912, are illustrative of three beds of 

 ^M a permanent manurial experiment, conducted since 1906 on the following plan: 



Bed 

 No. 



I. 

 Sugar beet 



Odts 



Rye 



IV. 

 Potatoes 



V. 

 Peas 



14 



132 lbs. phos- 

 phoric acid as 

 Superphosphate 



264 lbs. potash 

 as Kainite 



132 lbs. nitrogen 



as Nitrate of 



Soda 



Complete manure consisting of: 



132 lbs. phos- 

 phoric acid as 

 Superphosphate 



132 lbs. phosphoric acid as 

 Superphosphate 



264 lbs. potash as Kainite 



264 lbs. nitrogen as Nitrate 

 of Soda 



264 lbs. potash as 



Potash Manure 



Salt (40" „) 



66 lbs. nitrogen 



as Nitrate of 



Soda 



132 lbs. phos- 

 phoric acid as 

 Superphosphate 



264 lbs. potash 

 as Kainite. 



5,5C0 lbs. Burnt 

 Lime. 



Some as bed 14, but without potash. 



No manure: but Burnt Lime dressed to peas. 



This permanent experiment was laid down originally in the year 1895, but in 1906 



underwent certain fundamental changes. Since 1895, however, bed No. 8 has 



received no potash, bed No. 3 only lime, and no farmyard manure whatsoever 



has been applied. As a result, effects of potash starvation are clearly evidenced. 



- 29 



