SOILS — FERTILIZERS. 



27 



of soil fertility under tillage by examining parallel samples from fields which 

 have been under long cultivation and from adjacent areas kept in grass. 



The results of analyses of the surface soils (to a depth of 7 in.) and the sub- 

 soils (the layer between 20 and 30 or 40 in.) are given in the following table: 



Average results of analyses of soil types of Kansas. 



Soil type. 



Soil layer. 



Nitrogen. 



Phos- 

 phorus. 



Potas- 

 sium. 



Calcium. 



Organic 

 carbon. 



Inorganic 

 carbon. 



Oswego silt loam 



Oswego fine sandy loam. 



Sedgwick clay loam 



Neosho silt loam 



Yazoo loam 



Yazoo clay 



Sharkey clay 



Marshall silt loam 



Marshall gravelly loam. . 



Yazoo silt loam 



Sedgwick clay loam 



Sedgwick sandy loam . . . . 



Benton loam 



Waldo loam 



Marshall silt loam 



Marshall silt loam (sandy 



phase). 

 Laurel loam 



Laurel sandy loam.. 

 Finney sandy loam. 



Dune sand 



Colorado sand 



Rough stony land . 

 Colorado adobe 



Finney clay 



Oswego silt loam 



Marshall silt loan 



Wabash silt loam 



Laurel sUt loam 



Wabash silt clay 



Sedgwick clay loam 



Sedgwick black clay loam. 



Sedgwick loam 



Sedgwick sandy loam 



Derby loam 



Arkansas loam 



Miami sand 



Miami fine sand 



Sedgwick clay loam 



Clarbsville stony loam 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soD. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



SubsoU 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



do 



Subsoil 



Surface soil. 



do 



do 



.....do 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 



Subsoil 



Surface soil. 

 Subsoil 



Per cent. 

 0. 220 

 .066 

 .155 

 .058 

 .217 

 .101 

 .166 

 .062 

 .173 

 .090 

 .269 

 .109 

 .267 

 .070 

 .221 

 .082 

 .247 

 .070 

 .173 

 .080 

 .187 

 .058 

 .141 

 .061 

 .237 

 .073 

 .269 

 .072 

 .124 

 .049 

 .103 

 .040 

 .168 

 .053 

 .090 

 .074 

 .051 

 .017 

 .027 

 .079 

 .100 

 .037 

 .108 

 .038 

 .217 

 .104 

 .205 

 .070 

 .188 

 .073 

 .252 

 !664 

 .340 

 .082 

 .132 

 .064 

 .136 

 .069 

 .181 

 .064 

 .099 

 .069 

 .152 

 .060 

 .191 

 .062 

 .041 

 .057 

 .066 

 .028 

 .180 

 .074 

 .167 

 .087 



Per cent. 

 0.048 

 .037 

 .026 

 .022 

 .043 

 .031 

 .026 

 .015 

 .042 

 .035 

 .059 

 .027 

 .058 

 .032 

 .053 

 .055 

 .037 

 .039 

 .065 

 .064 

 .051 

 .054 

 .048 

 .063 

 .053 

 .063 

 .060 

 .055 

 .067 

 .070 

 .061 

 .056 

 .069 

 .010 

 .060 

 .038 

 .028 

 .036 

 .035 

 .067 

 .068 

 .068 

 .065 

 .067 

 .053 

 .043 

 .051 

 .023 

 .055 

 .091 

 .057 

 .054 

 .078 

 .047 

 .055 

 .044 

 .031 

 .047 

 .040 

 .048 

 .030 

 .029 

 .050 

 .032 

 .051 

 .042 

 .040 

 .051 

 .038 

 .040 

 .026 

 .025 

 .025 

 .026 



Per cent. 

 1.35 

 1.42 

 .81 

 .93 

 1.60 

 1.46 

 1.32 

 1.34 

 1.83 

 1.90 

 1.77 

 1.85 

 1.80 

 1.57 

 1.94 

 1.95 

 1.34 

 1.35 

 1.84 

 1.92 

 2.04 

 2.00 

 1.80 

 1.91 

 1.62 

 1.30 

 1.90 

 2.14 

 2.26 

 2.12 

 2.42 

 2.45 

 2.48 

 2.04 

 2.42 

 2.32 

 2.22 

 2.79 

 2.46 

 2.36 

 2.51 

 2.23 

 2.24 

 2.27 

 1.82 

 1.96 

 2.05 

 1.99 

 2.12 

 2.09 

 1.95 

 1.94 

 2.16 

 1.95 

 1.99 

 2.19 

 1.92 

 1.93 

 2.21 

 2.12 

 2.32 

 2.19 

 2.11 

 2.08 

 2.25 

 2.24 

 2.60 

 2.19 

 2.64 

 2.61 

 1.59 

 1.59 

 1.57 

 1.50 



Per cent. 



0.67 



.48 



.24 



.23 



.47 



.78 



.39 



.37 



.53 



.52 



.44 



.59 



.68 



.75 



.56 



.65 



.60 



.55 



.70 



1.00 



.84 



2.29 



.74 



.72 



5.03 



8.05 



1.11 



1.99 



1.17 



3.82 



1.08 



1.81 



1.19 



4.55 



.97 



2.63 



1.12 



.60 



.45 



2.86 



.81 



2.30 



.81 



.83 

 .67 

 .64 

 .77 

 .71 



2.07 



1.84 

 .44 



6.06 

 .55 



3.87 

 .48 



1.00 

 .39 

 .59 

 .63 

 .37 

 .55 

 .64 

 .53 

 .55 

 .52 

 .75 

 .75 

 .80 

 .49 

 .85 

 .46 



1.38 



Per cent. 



2.51 



1.05 



1.63 

 .46 



2.40 

 .88 



1.58 

 .51 



L83 

 .89 



2.69 



1.04 



2.79 

 .77 



2.70 

 .75 



2.79 

 .73 



3.18 



1.02 



2.14 

 .68 



1.61 

 .63 



2.90 



1.28 



3.18 

 .76 



1.16 

 .30 

 .94 

 .31 



1.52 

 .39 

 .82 

 .64 

 .33 

 .11 

 .24 

 .64 

 .97 

 .19 

 .88 

 .28 



2.60 

 .57 



2.02 

 .43 



2.11 

 .64 



2.75 

 .59 



3. 62 

 .62 



2.51 



1.82 



1.56 

 .55 



1.97 

 .74 



1.03 

 .60 



1.69 

 .50 



2.04 



5.56 

 .52 

 .60 

 .71 

 .25 



2.19 

 .74 



2.14 



Per cent. 



Trace. 

 Trace. 



Trace. 

 Trace. 



Trace. 

 Trace. 



Trace. 



4.501 

 12.352 

 Trace. 



1.380 



.133 



.253 



.960 



1.123 



Trace. 

 "".'703 



Trace. 

 .029 



.341 

 1.204 

 4.462 

 6.571 



Trace. 



.108 

 Trace. 

 Trace. 

 Trace. 

 Trace. 

 Trace. 



.166 

 Trace. 

 Trace. 



.044 



.259 

 Trace. 



.059 



Trace. 

 .349 



