Relations of Higher Plants to the Formation of Nitrates 47 



TABLE 17. Nitrates in Soil of Planted and Unplanted Sections of Plats, 1911 



(Parts per Million) 



First eight inches 



Plat 



2201,2209 

 2401,2409 

 2201,2209 

 2401,2409 

 2202, 2210 : 

 2402, 2410 



2202, 2210 ' 

 2402, 2410 



2203, 2211 ' 

 2403,2411 

 2203,2211 

 2403,2411 

 2204, 2212 

 2404, 2412 



2204, 2212 



2404, 2412 



2205, 2213 



2405, 2413 



2205, 2213 



2405, 2413 



2206, 2214 ' 



2406, 2414 

 220S, 2214 



2406, 2414 

 2207, 2215 



2407, 2415 



2207. 2215 



2407, 2415 



2208. 2216 



2408, 2416 

 2208, 2216 ' 

 2408, 2416 



Crop 



Maize, mulched 



None 



Maize, scraped 



None 



Maize, cultivated 



None 



Maize, harvested August 1 . . . , 



None 



Maize, planted June 26, har- 

 vested August 1 



None . . 



Potatoes 



None 



Oats 



None 



Oats, followed by maize 



None 



26 

 27 

 32 

 23 

 29 

 22 

 30 

 34 



26 

 31 



33 



28 



23 



32 



26 



26 



59 



79 



41 



53 



105 



139 



130 



140 



115 

 137 



73 



127 



8 



42 



4 



56 



39 

 64 

 121 

 112 

 107 

 192 

 116 

 168 



113 

 109 



39 



112 



8 



74 



6 



74 



17 



46 



76 



141 



65 



174 



105 



139 



100 

 120 



41 



127 



11 



76 



11 



63 



CO a 



5 



14 



58- 



135 



45 



168 



158 



215 



167 

 194 



65 

 211 



23 

 123 



18 

 168 



£ ° 



m 



14 



32 



71 



176 



35 



224 



139 



163 



115 

 160 



67 

 160 



26 

 114 



15 

 111 



17 



18 



32 



199 



71 



210 



119 



196 



209 

 234 



51 

 179 



26 

 127 



18 

 106 



Second eight inches 















Tt( 





o 





























o 



i^ 









^-H 





















O I-, 





















-w (D 



<^iO 











o 



o 



-^ 



to 





S§5 



-f 



Plat 



Crop 



< 



to 



<D 



a 



3 



>-7 



o 



1-5 



3 



3 

 < 



3 

 < 



^5 

 3 a 



< 



"6° 



P.O 

 a) 



CO 



II 



o 



2201, 2209 \ 

 2401, 2409 / 



Maize, mulched . . . .' 



22 



29 



25 



22 



15 



13 



16 



13 



2201,2209 \ 

 2401,2409 / 



None 



19 



26 



33 



29 



34 



27 



50 



23 



2202, 2210 \ 

 2402.2410 1 



Maize, scraped 



15 



21 



28 



20 



15 



12 



23 



18 



2202, 2210 \ 

 2402, 2410 / 



None 



14 



21 



41 



21 



27 



24 



44 



42 



2203,2211 1 



Maize, cultivated 



24 



28 



41 



22 



21 



22 



25 



30 



2403, 2411 J 







