274 SOILS AND MANUKES 



lime. One cwt. of this manure is, therefore, equivalent 

 to nearly 75 Ibs. of quick lime. 



The proportion of nitrogen is practically the same as 

 that in sulphate of ammonia ; the standard product is 

 guaranteed to contain '20 per cent, of nitrogen, equal to 

 24*5 per cent, of ammonia. 



Nitrolim may be safely mixed with basic slag, bone 

 meal, potash salts, and even with superphosphate, if a 

 quantity of water be sprinkled over it in the course of 

 the operation. But if this does no harm to the calcium- 

 cyanamide, the same cannot be said of the superphos- 

 phate, and the writer would advise that the two manures 

 should not be mixed before application. 



Application. When in good condition, the manure is 

 in the form of an extremely fine powder, which, in windy 

 weather, is apt to be blown about. It is therefore better 

 to apply it by means of a distributor, or, if such a machine 

 be not available, it should be mixed with a quantity of 

 soil. If basic slag or potash salts are to be spread at the 

 same time, they will serve the same purpose, and a certain 

 amount of trouble may be saved in that way. 



In order to avoid risk of loss by evaporation of ammonia, 

 it is desirable that the manure should be well harrowed 

 in, especially on the lighter class of soils. For this 

 reason also, if it is to be used as a top dressing, it is 

 desirable to mix it with earth before spreading. 



Some observers have recommended that it should be 

 applied at the back end of the year, but as the nitrogen 

 is present in a very soluble condition, one would not 

 expect this to prove an economical method. The majority 

 of experiments appear to indicate that the best results are 

 obtained with this manure when it is applied about two 

 or three weeks before the seed. 



It is suitable for all crops that require nitrogenous 

 manures, and may be used at the rate of from one 



