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Hop Manuring Experiments. 



BY DR. BERNARD DYER. 



A YEAR ago I recorded the results of several years' con- 

 tinuous experiments on the manuring of hops, carried out 

 under my superintendence by my friend Mr. Shrivell, of 

 Golden Green, Hadlow, near Tonbridge. I have now to 

 continue the record. The object of the experiments, as 

 previously explained, has been a simple one, viz., to ascertain 

 how far nitrate of soda, in the presence of an abundant supply 

 of phosphates and potash, can be advantageously used as a 

 source of nitrogenous food for hops. For many years there 

 has been prevalent among hop-growers an idea that nitrate of 

 soda is an unsafe manure for hops, and likely to injure their 

 quality. On the other hand, the consumption of nitrate of 

 soda in our hop gardens has, of late, been steadily increasing. 

 Nevertheless, a very large number of hop-growers, while 

 freely using nitrogenous manures of other kinds, fear to 

 make use of nitrate of soda. 



As I pointed out last year, it is probable that this widely- 

 spread distrust of nitrate as a hop manure is largely due to 

 the fact that nitrate of soda, like many other nitrogenous 

 manures, has in the past been misused, by being applied 

 without a sufficient quantity of phosphates. For many years 



