POT EXPERIMENTS WITH FERTILIZERS. -165 
HXPERIMENTS WITH HUNGARIAN GRASS, 1808. 
_ This experiment included pots Nos. 17 to 32, with four pots 
in each group. It will be seen from the table below that the 
total yields of crop in this experiment were quite uniform from 
pots with similar amounts of nitrogen. The total range in 
yields per pot in the group with mineral fertilizers was only 
from 28.0 to 33.5 grams; in the group with the lowest (one- 
third) ration of nitrogen the range was 50.5 to 54.0 grams; in 
the group with the second (two-thirds) ration of nitrogen the 
range was 55.0 to 59.0 grams and in that with the largest 
(full) ration the range was 54.0 to 61.0 grams. Fairly uni- 
form results were also obtained in the percentages of nitrogen 
for the crops from the different pots which were fertilized 
TABLE 48. 
Nitrogen in fertilizer and in crop in pot experiments with Hun- 
garian grass, 1898. 













FERTILIZER. S 
y See ae 
ils ble] B |g 
é A SAMPLE. a a a 35 ane 
3° . eit all ats “i = 
G3 < Kind. 9 on Fs e Sy 
Ho) 3 é ae 
eM) g 
Gms|Gms} % |Gms| % 
1984|17; Hungarian grass, | Minerals only, - eo $32 OL. OS). 34) OL eG 
1985}18| Hungarian grass, | Minerals only, - ar S I holo: 36 Oa 
1986|19| Hungarian grass,| Minerals only, — - =A 25, Or ok Tie. 311. Onn 
1987|20) Hungarian grass, | Minerals only, - Soe gue TIS... 30\ Tee 
Average, 31.3/1.10) .35) 6.86 
1988/21; Hungarian grass, | Minerals + 4 nit. ration, /3.17/50.5|/1.40 Bye Wir ow ts I 
1989/22] Hungarian grass, | Minerals + 4 nit. ration, |3.17/53.5|1.40 75 (wets 
Ig90|23} Hungarian grass, | Minerals + 4 nit. ration, |3.17/53.0|1 -35| .72| 8.44 
1991|24) Hungarian grass, | Minerals + 4 nit. ration, 3.17/54.0/1.35) .73) 8.44 
Average, a 52.8/1.38) .73) 8.60 
1992/25} Hungarian grass, | Minerals + } nit. ration, |6.34/56.0/1.67| .94 10.44 
1993|26) Hungarian grass, | Minerals + 4 nit. ration, |6.34/59.0/1.85/1 .OO|/II.56 
1994/27|. Hungarian grass, | Minerals + # nit. ration, |6.34/55.ol1. Te OLE OO 
1995|28| Hungarian grass, | Minerals + $ nit. ration, |6.34/56.0/1.85]1 .O4/11.56. 
Average, - 56.5/1.79/1.01 P16: 
1996/29) Hungarian grass, | Min’ls + full nit. ration, |g.5154.0/2.10/1.13/13.13. 
1997/30} Hungarian grass, | Min’ls + full nit. ration, |9.51/58.0]1.94\1.13/12.13 
1998|31| Hungarian grass, | Min’ls + full nit. ration, |g.51/61.0/1.92\1.17/12.00 
1999/32] Hungarian grass, | Min’ls + full nit. ration, |9.51/60.0/1. 81/1 fOOILTA 31 
Average,’ - 08.3/1.94/1.13/12.14 
12 




