EFFECT OF NITROGENOUS FERTILIZERS. 169 

TABLE 27.— ConTINUED. 


PERCENTAGE COMPOSITION OF CORN 
CALCULATED ON WATER-FREE SUBSTANCE. 









i Year| Plot No. and kind and amount Kind of Ee ROR i eee 
P of fertilizer per acre. experiment, tory Nitrogen 
| Protein.| Fat. free Fiber. | Ash. 
| extract. 
| Dis. boneblack, 320 lbs. 
Murtate of potash, 160 lbs. 
Nitr. of soda, 480 lbs. (nttro- 
| gen, 75 lbs.) Per ct./Per ct.| Per ct. |Per ct./Per ct. 
| 1888 Plots 9, 12, 15,* - |Spe. nitrogen} 637) 14.38] 5.67| 76.89) 1.37] 1.69 
1888 Driers, i 657) 11.75) 5.63} 79.40)" Tos 2;emeeeo 
_ 1888 OiaG2 15." : 667) 13.19] 5.59] 77793] 1.0Q0)meteoa 
1888 Weekes.” . x 687} 12.00} 5.10} 79.74; 1.53] 1.63 
| 1889 9; . : : HY 71Il (9.88| 7.03| 70.14| 1 83ers 
1889 ame ‘ 739| 11.19] 6.14 78.15| 2.24) 2.28 
| 1891 4 Wet tp acktys cs 1,033| 11.88] 6.25| 78.77| 1.41| 1.69 
1895 Q, ‘ ; : 1,553) 11.93} 5.80) 78.97| 1.59] 1.71 
1895 Ce) bee A : rs 1,573] 12.48] 7.05] 76.83) 1.56} 2.08 
| 1896 one ae ; : us 1,762] 11.68} 6.28) 78.81) 1.46) 1.77 
1896) Ci a Nes a “ 1,772| 12.46] 5.67| 78.46 1.60| 1.81 
Average, tem) $2.07), 6.02) 78.46) 1062 aniros 
Dis. boneblack, 320 lbs. 
| Muriate of potash, 160 lbs. 
| Sul. of ammo., 120 lbs, (nitro- | 
gen, 25 lbs.) 
| 1889 Plot 10, : . |Spe. nitrogen| 713) 9.00) 6.48) 80.94) 1.74) 1.84 
| 1889 10, A : me! os 743) 10.31; 5.80). 79.56) 2.41) Mange 
1895 fo. : ; 1,554] 10.27|9%6:609) 79.86) °1:53) summGs 
1895 ah? ee an “ 1,574] I1.00| 6.91| 78.61] 1.53] 1.95 
— 1896 LOya ; : “ 1,763) 10.20) 6.79) 79.56} 1.60} 1.85 
189 th) ae : , 3s 1,773} 10.91] 5.56) 80.62) 1.26) (1208 
| oe ] Average, ....| $0.28) 6.37) 79.86) 5.68) 3.8! 
| Dis. boneblack, 320 lbs. | | 
| Murtate of potash, 160 lbs. 
Sul. of ammo., 240 lbs. (nitro- 
: gen, 50 lbs.) 
1889 Ot Tt. : : . |Spe. nitrogen} 715} 8.94) 6.78] 80.85) 1.64) 1.79 
| 1889). rte : : i ve 743). 12.00). 5.92) | 77.82) 2.27 mateo 
1895 j Ate } : : i 1,555| 10.37, 6.12} 80.40) 1.50] 1.61 
1895 ex) ae 4 1,575} 11.42] 7.43] 77-57| 1.54/ 2.04 
1896 Li; ; : , oe t,704| 9:87) 6.08 -79.64) 1253) 
— 1896 re, : ‘ , we 1,774; 10.96, 6.55] 78.94) 1.54] 2.01 
Average, ..+-| 10.60) 6.63 49 30 1.68) 3.89 
Dis, boneblack, 320 lbs. 
Murtate of potash, 160 lbs. 
Sul. of ammo., 360 lbs, (nitro- 
gen, 75 lbs.) 
1889 Plot 12, ; ‘ . |Spe. nitrogen 7i7| 11.13) 6.18) 98.96)" 1. SS5ieerecs 
1889 12. ; i : = 745| 11.50) 6.38) 78.05] 2.07} 2.00 
1895 n2} ; : : : aes 1,556) 12.12%) 6.57) 77.60) 1.57) 1.85 
1895 12, ; : ; ris 1,570) 12.19) 7.05] 977.25) I40)oea2 
1896 ‘at : ‘ : i 1,765) 12513; 6.16} 79.62|| I.3tieeeeo 
1896 EO eh , fs 1,775| 12.04, 6.36; 78.34] 1.30] 1.96 
Average, ..» | 33.68) 6.50) 78.30) 1.60} 4.92 
* Combined samples (three forms of nitrogen), 

