698 



Agricultural Journal of Victoria. 



There is nothing in these results to show a superiority of the 

 sulphate form of potash over the chloride using equal quantities^ or^ 

 to put it another way, to indicate that any bad effects have followed 

 the use of chloride, either in combination with a phosphatic manure 

 only, or with the further addition of sulphate of ammonia. The 

 results add fresh confirmatory evidence on the relatively small eifect 

 potash will exercise in comparison with phosphatic and nitrogenous 

 fertilizers in increasing the hay yields of Southern Victoria. 



Further Comparisons between the Two Forms of Potash. 



Additional evidence, indicating that, generally speaking, the com- 

 bination of the chloride of potash with sulphate of ammonia will not 

 result deleteriously, is present in the average returns of Table C. The 

 average results of 23 fields in these returns show that the sulphate and 

 chloride of potash, used each in equal quantities with like amounts of 

 sulphate of ammonia, have given identically the same yields. 



Average yields of 23 fields 

 Average yields of 23 fields 



2-3rd cwt. potash sulphate, 

 1 cwt. sulphate of ammonia. 



2-3rd cwt. potash chloride, 

 1 cwt. sulphate of ammonia. 



1^80 tons. 

 1^80 tons. 



The returns of the 14 fields referred to again support this. In 

 these tests sulphate of ammonia and potash chloride in combination 

 have been compared with equal quantities of nitrate of soda, and the 

 same potash salt also used together. 



