42 The Cultivation and Preparation of Coffee 



EESULTS AT A GLANCE. 



Plot No. 116.6 oz. No fertilizer. 



Plot No. & 24.1 oz. Increase in yield over Plot No. 1 



7.5 oz. 

 Plot No. 532.3 oz. Increase in yield over Plot No. 2 



8.2 oz.* 

 Plot No. 523.1 oz. Decrease in yield compared with 



Plot No. 21.0 oz.** 

 Plot No. 646.1 oz. Increase in yield over Plot No. 5 



23.0 oz.f 



It will be noticed that plot No. 6 was 

 fertilized like plot No. 5, with the addition of 

 one-half wheelbarrow of stable manure, which 

 plainly demonstrates that chemical fertilizers 

 in conjunction with stable manure are the best 

 manures. 



There are, however, some coffee fertilizers 

 concentrated in order to avoid the transporta- 

 tion of unnecessary materials, and such 

 fertilizers may be bought ready mixed, con- 

 taining not less than 



7 per cent. Nitrogen 

 10-5 per cent. Phosphoric Acid 

 14 per cent. Potash 



if made from high-grade materials, and the 

 following are some sample mixtures containing 



* The increase was due to the use of Muriate of Potash instead of 



Sulphate. 



** Received exactly half the amount of fertilizer of plot No. 2. 

 t Trebled the yield of plot No. 1. 



