472 Fertilisers for Market Garden Crops. 



treating the ground with 4 cwt. to 6 cwt. of superphosphate and 

 1 cwt. of sulphate of potash per acre. Potash salts should on 

 no account be omitted, as it has been evident year after year 

 from our experiments, as is well shown in the averages, that 

 the influence of potash on these crops is very great. 



Annual Manuring. 



Average Annual Weight 

 of Crop per acre. 



Annual 

 Cost of 



Carrots 

 (6 years). 



Parsnips 

 (7 years). 



Manure 

 per acre. 



Light Dung (applied to previous crop) 



Tons cwt. 

 12 15 



Tons cwt. 

 9 1 



/ s. d. 

 nil 



Heavy Dung (applied to previous crop) 



15 



2 



11 



4 



nil 



Light Dung (to previous crop) ; carrots 

 dressed with Phosphates (no Potash) 

 and 2 cwt. Nitrate of Soda per acre 



13 



8 



10 



2 



1 15 0 



Ditto, ditto (with Potash) 



15 



14 



11 





2 50 



Light Dung (to previous crop) ; carrots 

 dressed with Phosphates (no Potash) 

 and 4 cwt. Nitrate of Soda per acre 



14 



11 



9 



9 



2150 



Ditto, ditto (with Potash) 



16 



2 



11 



0 



3 5 0 



After the plant is well up, it may be top-dressed with 2 cwt. 

 of nitrate of soda per acre ; and in the case of carrots, this top- 

 dressing may sometimes be advantageously repeated a month 

 later. One dressing of 2 cwt. of nitrate of soda per acre appears, 

 however, according to our experience, to be sufficient for parsnips. 



Celery. 



We have found it difficult in most seasons to grow good crops 

 of celery in our stiff soil without the use of a large quantity of 

 dung in the trenches, and we have found that supplementing 

 the dung with chemical fertilisers does not materially affect the 

 weight of our crop, though it seems to improve the rapidity of 

 growth and to make the celery more crisp and tender than that 

 grown by the use of dung alone. 



Spinach. 



Our last three crops of summer spinach averaged only 4f tons 

 per acre when a light dressing of dung was used, and less than 6\ 



