310 



EXPEKIMENT STATION RI^CORD. 



According to Wundor.^ turnips grown in sand with one application 

 of potash, and in a loam soil, contained the following percentages of 

 potash: 



PoUtsli In inrnips girjini in (lijfere)d soils. 



Sand with potash fertilizer. 



First 

 year. 



Potash in dry substance. . 

 Potash in 100 parts of asli . 



Per cent. 



8.15 



58.29 



Second 

 year. 



Per cent. 



5.92 



52.16 



Third 

 year. 



Per cent. 

 4.73 

 43.36 



Loam soil. 



First 

 year. 



Per cent. 



3.95 



43.12 



Second 

 year. 



Per cent. 



4.90 



44.83 



Hellriegel'^ found in barley plants grown in water cultures with 

 increasing amounts of potash from 0.35 to 3.96 per cent of potash in 

 the dry matter. E. Wolffs found that in oats grown in water cultures 

 of different composition the ash contained from 18 to 51 per cent of 

 potash, 1 to 38 per cent of lime, and to 27 per cent of soda. Nessler * 

 found in the ash of the grapevine the following: 



.4s// constituents in grapevines. 



Potash. 



Lime. 



Phosphoric 

 acid. 



Vines not fertilized 



Vines fertilized with potash. 



Per cent. 

 16.76 

 23. 75 



Per cent. 

 25.66 

 23. 99 



Per cent. 

 9.02 

 7.34 



Nessler" states that in general the content of potash as well as 

 of chlorin in the plant is found to be increased by the addition of these 

 elements to the fertilizer. Pfeifl'er *' studied the effect on the chlorin 

 content of potatoes of applying fertilizers eontaining no chlorids as 

 compared with those containing chlorin. with the following results: 



Chlorin in potatoes {air-dri/ substance). 



Without chlorin fertihzers: Percent. 



No potash sahs 0.215 



Potassium sulphate 211 



With chlorin fertilizers: 



Potassitim chlorid 279 



Potassium sulphate and magnesium chlorid 373 



Kainit 362 



Rock salt 458 



Another illustration of the effect of fertilizers on the individual 

 elements of the ash is afforded by the following analyses by Councler ' 

 of the ash of maple leaves {Ace?' negundo). One series was in water 



1 Land. Vers. Stat., 4 (1862) , p. 266. ^ n^j^^^ ^ ( ^ggg^^ p 23g_ 



Hbid.,11 (1869),p.l41. *Ibid.,16 (1873),p.l86. ^ Ibid., 40 (1892), p. 411. 



6 Ibid., 49 (1898) , p. 371. 'Ibid., 29 (1883), p. 241. 



