1012 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



SAVOY CABBAGES. 



Annual manuring per acre 



Annual cost 

 of manure 

 per acre 



Average weight of Cabbages per acre 



Six crops 

 (1894-1898) 



Three crops 

 (1899-1901) 



tons cwt. 



15 16 

 12 16 



16 11 

 16 7 



50 loads (2o tons) London Dung . 

 25 loads (12| tons) London Dung . 

 No Dung ; Phosphates (without Potash) 



and 4 cwt. Nitrate of Soda 

 Ditto, ditto (with Potash) 

 No Dung ; Phosphates (without Potash) 



and 8 cwt. Nitrate of Soda 

 Ditto, ditto (with Potash) 



£ s. d. 

 in n a 

 10 0 0 



5 0 0 



2 15 0 



3 5 0 



4 15 0 



5 5 0 



tons cwt. 



16 0 

 13 7 



17 3 

 16 18 



Here again the chemical dressings alone will be seen 



to have con- 



sistently produced greater crops than the use of even 50 loads of dung 

 per acre without them. 



The heavy dressing of dung, it will be noticed, costs £10 per acre, 

 and even the light dressing costs £5 per acre. The chemical fertilisers 

 used on the first six crops averaged in cost about £3 per acre, and those 

 used in the last three years about £5 per acre. The relative economy of 

 dung and chemical fertilisers for Savoy Cabbages is thus very apparent. 



It is singular that, while potash seems to have done good during the 

 last three years on the plots receiving both dung and chemical fertilisers, 

 it has produced little or no effect on the plots receiving chemical fertilisers 

 only. This is possibly attributable to the solvent action of the increased 

 quantity of nitrate of soda on the mineral potash salts of the soil. 



Probably, on the whole, the best manuring for Savoys would be a 

 light dressing of dung, a good dressing of phosphates, and 4 cwt. of 

 nitrate of soda per acre. But if dung is scarce it may be omitted, using 

 in that case 6 cwt. of nitrate of soda per acre. 



Spring Cabbages. 



This crop is sown in the late summer and planted out after some 

 other crop in the autumn, being cut for market in the late spring or early 

 summer. It is usual to apply dung for Spring Cabbages, even when they 

 follow another crop that has been dunged ; and, although we are, for 

 several reasons, doubtful as to the general advisability of this course, we 

 have followed the usual custom of the market gardener. 



The following table shows the average results obtained on the plots 

 on which dung has been used, with and without chemical fertilisers : — 



SPRING CABBAGES. 



Annual manuring per acre 



50 loads (25 tons) London Dung 



25 loads (12.J tons) London Dung 



25 loads Dung, Phosphates (no Potash 



2 cwt. Nitrate of Soda . 

 Ditto, ditto (with Potash) . 

 25 loads Dung, Phosphates (no Potash) 



4 cwt. Nitrate of Soda . 

 Ditto, ditto (with Potash) . 



and 

 and 



Annual cost of 

 manure per acre 



Average weight of 

 Cabbages per acre 

 (seven years, 1895-1901) 



£ $. 





tons cwt. 



10 0 





17 10 



5 0 





16 15 



6 15 



. 



17 14 



7 5 



0 



18 9 



7 15 



0 



17 15 



8 5 



0 



18 18 



