Report of the Chemist for Agriculture. 841 



II. INVESTIGATIONS ON THE FIELD. 



The experimental Held tests formed an important part of the year's 

 operations. They embraced fertilizer trials, forage crop experiments, 

 and beet experiments from a sugar producing point of view. There 

 were 97 hav and grain fields and 102 forage crop fields established on 

 as many farms during the year. The fertilizer tests proper were 

 confined to hay crops in the South, and grain crops in the North. 

 The methods of conducting these co-operative tests, and the 

 results, are given in Bulletin No. 13, which has just been published. 

 The hay manuring tests covered a wide range of experiment 

 ncluding : — 



1. The effects of applications of phosphoric acid alone. 



2. Of phosphoric acid and potash. 



3. Of phosphoric acid and nitrogen. 



4. Of phosphoric acid, nitrogen and potash. 



6. The comparative effects of different forms of nitrogenous 

 manures with phosphoric acid alone, and in com- 

 bination with phosphoric acid and potash. 



6. The effect of light, heavy and medium additions of a 



nitrogenous manure to medium dressings of super- 

 phosphate. 



7. The effect of light applications of a nitrogenous manure 



to light applications of superphosphate. 



8. The comparative effect of equal quantities of the three 



forms of phosphatic manure, viz., superphosphate, 

 Thomas phosphate and bonedust. 



9. The comparative effect of equal quantities of Thomas 



phosphate and superphosphate in combination with 

 the two forms of nitrogen, and the two forms of 

 potash. 



10. The effect of equal quantities of sulphate of ammonia 



with the sulphate and chloride of potash. 



11. The effect of equal quantities of the chloride of potash 



with nitrate of soda and sulphate of ammonia. 



Forage Crop Experiments. 



The forage crop experiments included trials with 26 different 

 crops. The system will be explained by reference to the plan of 

 the field. 



