73 



mineral superphosphate and two parts of kainit. In. 

 intrinsic value it is decidedly inferior to the complete 

 manure recommended and used on most of the plots. 



COMPLETE CHEMICAL MANURE. It only remains to 

 add that this manure, composed as it is of equal 

 weights of mineral superphosphate, kainit, and nitrate 

 of soda (or its equivalent of sulphate of ammonia), 

 contains : 



Nitrogen ... ... ... 5 '20 per cent. 



Soluble Phosphoric Acid ... 4*0 to 4 '25 per cent. 

 Potash ... ... ... 4 '0 to 4 '5 per cent. 



The " Complete Chemical Manure " is that recom- 

 mended by Dr. Munro, which he advised should be 

 applied at the rate of 4 cwt. of each of the three 

 manures mentioned per acre. The excellent results 

 obtained on the soils for which the mixture was recom- 

 mended was proved by the fact that several of the 

 late varieties yielded at the rate of upwards of 20 tons 

 per acre. The Warminster soil was reported as being 

 a free working sandy loam with fair reserves of fer- 

 tility. Of course every care and attention was be- 

 stowed upon the crop to make it yield so abundantly, 

 but the fact remains that the exceptionally heavy 

 return was obtained on an average soil by the applica- 

 tion of the mixture in the proportions given here. 



Seaweed is very valuable where obtainable. Kainit 

 is a good substitute otherwise. 



Properties of Artificial Manure. 



Superphosphate of lime is found to be a very useful 



