22. CELERY CULTURE 



labor required to haul and apply it and the slowness 

 of its action. 



Manure from Fowls. — The manure from fowls is 

 valuable as fertilizer, often worth $7.50 a ton when 

 its fertilizing ingredients are reckoned at market 

 value. Since the elements contained in the manure 

 from fowls are in an available form, this kind of 

 fertilizer should be applied but a short time before 

 planting, or as a top dressing, and worked into the 

 soil between the rows. 



Fish Refuse. — Dried fish and fish scrap are 

 among the more valuable sources of available nitro- 

 gen and phosphoric acid. Fish guano is made either 

 from unmarketable fish or the refuse from fish- 

 cleaning establishments and fish oil factories. 

 When dried and pulverized this guano contains 

 from 6 to 10 per cent, nitrogen and from 5 to 8 per 

 cent, available phosphoric acid, but practically no 

 potash. By the addition of 100 pounds of high 

 grade muriate of potash for every 400 pounds of 

 fish guano there will be produced a high grade 

 fertilizer and one that will act quickly. The crude 

 refuse from fish factories or oil mills may be ap- 

 plied directly to the land in the same manner as 

 barnyard manure, but should always be accom- 

 panied or followed by an application of potash in 

 some form. For every 1,200 pounds of fish scrap 

 add 800 pounds of unleached wood-ashes to form a 

 complete celery fertilizer ; the fish scrap should be 

 applied at the rate of from 3 to 5 tons, and 2 to 3 

 tons of wood-ashes to the acre. The scrap from the 

 fish factories will require some time for decomposi- 



