FIELD EXPERIMENTS WITH FERTILIZERS. 



135 



Table 69. 

 special nitrogen experiments on white flint corn 



(SERIES F). 

 Percentages a7id pounds per acre of dry matter and of protein in the 



grain and stover. 



6a 



Fertilizers per Acre. 



63 



Kind. 



Nothing, 



j Mixed Min's, as No. 6a, 

 I Nit. of Soda (25 lbs. N.), 



j Mixed Min's, as No. 6a, 

 ] Nit. of Soda(5olbs. N.), 



\ Mixed Min's, as No. 6a, 

 } Nit. of Soda (75 lbs. N.), 



i Dis. Bn-bl'k, } Mixed ( 

 ( Mur. of Pot. f Minis, ] 



j Mixed Min's, as No. 6a, 

 I Sul. of Am. (25 lbs. N.), 



j Mixed Min's, as No. 6a, 

 I Sul. of Am. (50 lbs. N.), 



j Mixed Min's, as No. 6a 

 I Sul. of Am. (75 lbs. N.), 



Nothing, 



Mixed Min's, as No. 6^, 



Lbs. 



480 

 160 



480 

 520 



480 

 480 



320 ) 

 160] 



480 

 120 



240 



480 

 360 



480 



Grain, 

 Stover, 

 Total, 



Grain, 

 Stover, 

 Total, 



Grain, 

 Stover, 

 Total, 



Grain, 



Stover,' 

 Total, 



Grain, 

 Stover, 

 Total, 



Grain, 

 Stover, 

 Total, 



Grain, 

 Stover, 

 Total, 



Grain, 



Stover, 



Total, 



Grain, 

 Stover, 

 Total, 



Grain, 

 Stover, 

 Total, 



Lbs. 



100 

 650 

 750 



500 

 1725 



2225 



1350 

 1875 

 3225 



1775 

 3775 



625 

 1850 

 2475 



1600 

 2500 

 4100 



•^-^ 



% 



86.1 

 68.6 



85.1 

 63.8 



83.8 

 76.1 



I,bs. 

 86.1 



445-9 

 532.0 



% i Lbs. 



g-Si 8.2 

 6.1 27.2 



- 35.4 



425.59.5 

 1 100. 6 4.6 

 1526.1 



1131.3 

 1426.9 

 2558.2 



40.4 

 50.6 

 91.0 



9-5 107.5 

 4.6 65.6 

 — 173.1 



83.9 1678.09.8 164.4 

 74.71325.95.6 74.3 



— 3003.9 - 238.7 



82.4! 515.09.5 48.9 

 65.01202.5 5.0 60. 1 



- 1717.5- 109.0 



82.5 1320.0 9, 

 64.9 1622.514, 



Mo 



! O rt 



v.: 





C8 



% 

 15.0 

 37.1 



30.0 



% 



15.7 

 45.3 

 31.5 



74.2 77.2 

 91.5 84.2 

 86.0 81.0 



197.3 205.5 

 1 1 8. 7 109.2 

 144.1154.1 



292.7 

 no. 3 

 169.2 



2 121 .4 230.2 232.1 



314.3 

 123.6 

 212.6 



81.8 

 73-7 



2275 

 4275 



1 100 

 1075 

 2175 



400:85.6 

 85071.4 

 1250 - 



75084.2 

 2000 60 . 1 

 2750: - 



|2942.5 



80.7 1614.0 



62.3'i4i7.3 



- 3031.3 



899.8 



792.3 



1692.1 



342.4 

 606.9 



949.3 



8 77-9 



-199.3 

 9.2! 77.9 



6.8 96.4 



- 174.3 



9.9 89.1 

 9-3 73.7 



- 162.8 



8.8 30.1 

 8.3 50.4 



- 80.5 



631.58.8 55.6 

 I 202. ©'5.0 60.1 

 1833.51-115.7 



134.9 

 165.8 



281.5 

 117. 8 

 170.8 



155.2 

 65.9 

 95.3 



59.7 

 50.5 

 53.5 



129.6 

 177.5 



148.9 

 160.4 

 155.2 



170.4 

 122.6 

 145.0 



57.6 

 S3. 9 

 71.7 



* The average of the yields on plots 6a and 6b is here taken as 100 for comparison. 



