Distribution of HCN Gas in Greenhouse Fumigation 19 



AgNOj 



Z5 30 35 



MlNUriZS 



■>5 SO 55 to 



Fig. 11. Graph of Fumigation No. 11 



A, left bench; B, middle bench; C, right bench; D, left col- 

 lecting tube; E. middle collecting tube; F, right collecting tube; 

 G, comb collecting tube. 



A 6 Q 10 IZ 14- Id 16 ZO ZZ.Z4.Ze Z6 30 ja 34 33 



tvUlMUTCS , 



Fig. 12. Graph of Fumigation No. 12 



A, left bench; B, middle bench; C, right bench; D, left col- 

 lecting tube; E, middle collecting tube; F, right collecting tube; 

 G, comb collecting tube. 



