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restricted to one form of manuring. A hop farmer will 

 naturally, and rightly, give his hops as much dung as his 

 farm resources will supply ; though I must say I have grave 

 doubt as to the economy, under most circumstances, of 

 buying town dung, unless on specially favourable terms as 

 regards cost of conveyance. There is a large variety of 

 other nitrogenous manures in the market, such as Peruvian 

 and Damaraland guano, sulphate of ammonia, fish guano, 

 dried blood, rape dust, furriers' refuse, horn shavings, hoof- 

 parings, wood dust, shoddy, &c. All of these may, turn and 

 turn about, be used for helping to maintain a stock of nitrogen 

 in the soil, and the degree to which manures of this kind 

 have been recently applied to any hop garden will naturally 

 influence the grower in deciding as to the quantity of nitrate 

 of soda he should use in conjunction with them, and also to 

 some extent in deciding as to the date of its application. 



Dressings of 8 cwt. and 10 cwt. per acre, such as we 

 annually give to plots E and F, would be larger than would 

 be applied where the land had been already dressed with 

 dung or with other nitrogenous manures. It has been seen, 

 however, that 6 cwt. of nitrate per acre did not prove too 

 much on the main portion of our experimental field in the 

 past season, although 20 loads of dung per acre were used, 

 following a ton of fish guano and 4 cwt. of nitrate of soda 

 per acre applied in the previous season. In our experience, 

 therefore, even following recent liberal manuring with 

 nitrogen in other forms, 6 cwt. of nitrate of soda per acre 

 has not proved itself to be in any way deleterious to the 

 quality of the produce in a dry season, although growth was 

 naturally luxuriant; in fact, it gave the best result of all 

 our plots. If asked for a general opinion as to the safe limit 



