OBSERVATIONS UPON THE LEACHING OF 

 SOLUBLE FERTILIZER SALTS FROM CRAN« 

 BERRY SOILS. 



By JOHN H. VOORHEES. 



Former Assistant in Charge Cranberry Investigations, N. J. Experiment 

 Station. 



In the spring of 1913 the author was detailed by 

 the New Jersey Experiment Station to study^ the 

 fertilizer requirements of the cranberry. After a sur- 

 vey of the field it was decided to locate the experi- 

 mental work upon bogs owned and operated by prac- 

 tical growers. Headquarters for this work were 

 located at the bogs of J. J. White, Incorp., situated 

 about three miles northeast of Hanover farms on the 

 P. R. R. in Burlington county. A rather complete 

 series of plots was planned including the separate 

 use of four sources of Nitrogen, — Nitrate of Soda, 

 ammonium sulphate, dried blood 12 per cent., and 

 cotton-seed meal; four sources of phosphoric acid, — ■ 

 acid phosphate, basic slag, phosphate rock and 

 steamed bone; and three sources of potash, — 

 muriate, sulphate and kainit. These materials were 

 not only used separately, but also in complete mix- 

 tures in which ammonium sulphate, acid phosphate 

 and muriate of potash were used as constant factors. 

 In each case the fertilized plots received either two 

 pounds of Nitrogen, four of phosphoric acid, or five 

 of potash, and in the case of complete mixtures all of 

 the above quantities were used. 

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