l82 



Journal of Agricultural Research 



Vol. IV, No. a 



Table I. — Effect of available nitrogen on the hydrocyanic-acid content of sorghum — Con. 



PLOT w — continued 



PW3TS 35 AND 30 



Plot 35 (feterita):c 



27 • 



28 



29 



30 



31 



32 



Plot 35 (feterita):b 



ZZ 



34 



35 



36 



37 



38 



Plot 30 (Orange sorgo) :c 



39 



40 



41 



42 



43 



44 



Plot 30 (Orange sorgo) :& 



45 



46 



47 



48 



49 



50 



39 

 57 

 77 

 90 

 83 



22 



36 

 60 

 81 

 89 



85 



29 



59 

 102 



103 



100 



96 



28 

 60 

 96 

 105 

 95 

 97 



24 

 35 

 47 

 59 

 67 

 92 



24 

 35 

 47 

 59 

 67 

 92 



25 

 43 

 58 

 70 



73 

 92 



25 

 42 



58 

 70 



73 

 92 



053 



010 



0068 



ooog 



0000 



077 

 065 



0047 



0068 



,0068 



050 

 000 

 000 

 000 

 000 

 000 



050 

 000 

 000 

 000 

 000 

 000 



0.025 

 .032 

 .013 

 •037 



.008 



.052 

 . 027 

 .015 

 •037 

 •034 

 .018 



. 019 



. 042 

 .005 

 . 022 

 . 021 

 .0065 



. 017 

 . 019 

 . 014 

 . 016 

 . 0036 

 . 0046 



o. 041 

 . on 

 .017 

 .017 

 . 0021 



040 

 009 

 017 

 017 

 003 s 



033 



020 



001 1 



0034 



0022 



0013 



032 



0093 



0038 



0027 



0005 



0007 



<• Fertilized at rate of 400 pounds per acre. 



'' Fertilized at rate of 800 potuids per acre. 



c Check. 



In Table I are also brought together the analyses of the samples from 

 the plots on the fertile ground on the university farm. Plot 35 was 

 feterita, a variety of sorghum ; plot 30 was Orange sorgo. In these experi- 

 ments the leaves were stripped from the stalks, the hydrocyanic acid 

 determined on each portion, and the percentage of the acid in the whole 

 plant calculated on the basis of the relative proportion of dry matter in 

 the leaves and stalks. In figure i the results for the whole plant are 



