Manuring of Hops. .505 







Valuation o 



r Crops pe 



r Acre 



Average 



Average 









at Factors' Ouotation. 



annual 



















increase 



Annual 



Plot. 



Annual Manuring 















in value 



Cost of 



per Acre. 









I 





Average 



as 



IVIanure 

 per 







1898 



1899 



1900 



1901 



1902 



Annual 



with 



Acre. 





















Value. 



riot A. 









£ 



£ 





£ 



£ 



£ 







r 



£ s. u. 



A 



Phosphates and Pot- 

















ash 



56 



35 



40 



38 



67 



47 





2 IOO 



B 



Phosphates. Potash 

 and 2 cwt. Nitrate 



















of Soda 



73 



45 



48 



44 



80 



58 



1 1 



3 10 0 



c 



Phosphates, Potash 

 and 4 cwt. Nitrate 

















of Soda 



89 



48 



52 



48 



86 



65 



1 0 



4 100 



D 



Phosphates, Potash 

 and 6 cwt. Nitrate 



















of Soda ... 



92 



50 



50 



46 



82 



64 



17 



5 10 0 



E 



Phosphates, Potash 

 and 8 cwt. Nitrate 



















of Soda ... 



104 



59 



51 



48 



87 



70 



23 



6 10 0 



F 



Phosphates, Potash 

 and 10 cwt. Nitrate 





















of Soda ... 



102 



56 



48 



44 



81 



66 



19 



7 10 0 



X 



30 loads (15 tons) 



















London Dung 



69 



47 



54 



49 



84 



61 



14 



600 



which the best results (according to weight of produce) were 

 attained with 5^ cwt. nitrate of soda — the highest quantity used 

 — accompanied by phosphates and potash. 



As to the practical limits of safety, Dr. Dyer and Mr. Shrivell 

 conclude that, even when the soil is otherwise liberally manured 

 by autumn or winter dressings of dung, rape dust, fish guano, 

 &c, 4 cwt. of nitrate per acre, applied early in the season, may 

 be regarded as a thoroughly safe dressing for hops. This 

 quantity should not be exceeded in the case of the more delicate 

 varieties. If no other nitrogenous manure has been given, as 

 much as 8 cwt. may be used. 



Large quantities of nitrate should be divided into separate 

 applications of not more than 2 cwt. per acre, at an interval of 

 some weeks. April and May are the best time to use it. 



