Fertilisers for Market Garden Crops. 475 



Our experience leads us to suggest that the most satisfactory 

 results with rhubarb may be obtained with a light dressing of 

 dung, a dressing of from 4 cwt. to 6 cwt. of superphosphate and 

 2 cwt. of nitrate of soda per acre for small varieties, or 4 cwt. 

 of nitrate of soda per acre for large varieties. 



Our small varieties have benefited from the application of 

 potash salts, but not the large variety. A suitable dressing of 

 potash salts is 1 cwt. of sulphate of potash, or 4 cwt. of kainit, 

 per acre. 



Potatoes. 



The average results are shown in the following table : — 



Annual Manuring. 



Early 

 Varieties 

 (7 crops). 



Late 

 Varieties 

 (8 crops). 



Average 

 Annual 

 Cost of 

 Manure 

 per acre. 



Weight of 

 Potatoes 

 per acre. 



Weight of 

 Potatoes 

 per acre. 



Light Dung 



Tons 

 5 



Cwt. 

 14 



Tons 

 8 



Cwt. 

 15 



£ s. d. 

 500 



Heavy Dung ... 



7 



7 



10 



6 



10 0 0 



Light Dung, Phosphates (no Potash) 

 and 2 cwt. Nitrate of Soda per acre 



6 



4 



9 



'3 



6 15 0 



Ditto, ditto (with Potash) 



6 



9 



10 



9 



7 5 0 



Light Dung, Phosphates (no Potash) 

 and 4 cwt. Nitrate ol Soda per acre 



6 



7 



10 



5 



7 15 0 



Ditto, ditto (with Potash) 



6 



10 



11 



3 



850 



No Dung ; but Phosphates (no Potash) 

 and *4 cwt. Nitrate of Soda per 

 acre 



3 



6 



5 



8 



3 5 0 



Ditto, ditto (with Potash) 



4 



10 



8 



0 



3 15 0 



* 8 cwt. Nitrate of Soda per acre in 1900 and 1901. 



We have grown seven crops of early varieties, and our 

 experience tends to show that, in such dry weather as we have had 

 and on such a soil as ours, a heavy dressing of 25 tons of dung 

 per acre is more economical than a lighter dressing, even when 

 the latter is very liberally supplemented by chemical fertilisers. 

 We have not, however, tried how far the yield of the heavy 

 dressing of dung might be further improved by the additional 

 use of chemical fertilisers. 



