2020 



ENCYCLOPEDIA OF PRACTICAL HORTICULTURE 



same county have been analyzed and the county, those types which are thought 

 results presented are computed from the to be most representative and likely to be 



averages of these analyses. In many 

 counties of the state several distinct 

 types of soil are to be found, sometimes 

 lying in fairly distinct areas of consid- 

 erable size, but frequently more or less 

 intermingled or overlapping. In each 



most easily recognized, or most common- 

 ly met with, are included in the tables. 

 Information as to the composition of 

 types not included in the tables may gen- 

 erally be obtained by correspondence 

 with the station chemist. 



COUNTY 



Table I— Plant Food in Soils— Eastern Washington 



Type of soil 



Adams. . . . . 



Asotin 



Benton 



Chelan 



Columbia... 



Douglas — 



Ferry 



Franklin. . . 

 Garfield — 



Grant 



Kittitas — 

 Klickitat. . . 

 Lincoln. . . . 

 Okanogan, . 

 Spokane 



Stevens 



Walla Walla, 



Wliitman..., 

 Yakima 



Basaltic loam 



Snake River benches 



Yakima fine sand 



Kennewick coarse sand . . . 

 Columbia River benches. , 

 Wenatchee River benches 



Basaltic loam 



Touchet Valley bottom. . , 



Basaltic loam 



Upland loam (pine land) . 

 Columbia River benches. 



Basaltic loam 



Winchester sand 



Valley loam 



Upland loam 



Basaltic loam 



River benches 



Gravelly benches 



Upland prairie 



Upland bench loam 



Volcanic ash loam 



Valley sandy loam 



Basaltic loam 



Yakima fine sand 



Lime 



24,180 

 21,760 

 62,800 

 41,960 

 62,800 

 31,320 

 30,200 

 32,680 

 26,600 

 34,600 

 47,000 

 29.040 

 44,800 

 46,800 

 22,080 

 30,800 

 83,760 

 7,165 

 24,680 

 21,040 

 37,180 

 37,360 

 27,920 

 57,640 



Potash 



17,220 

 15,720 

 13,160 

 15,340 

 13,340 



9,920 

 18,680 

 16,360 

 14,800 

 14,120 

 16,600 

 22,680 

 12,480 

 18,840 



8,520 

 18,440 

 13,170 



5,580 

 18,120 

 12,280 

 14,120 

 16,780 

 19,080 



8,920 



Phosphoric 

 acid 



3,240 

 2,210 

 4,200 

 2,680 

 Trace 

 9,320 

 4,400 

 6,280 

 5,440 

 9,960 



13,620 

 5,080 

 2,000 

 4,480 

 3,610 

 5,680 

 7,150 

 840 

 8,880 

 9,400 



11,140 

 5,680 



13,400 

 5,320 



Nitrogen 



2,660 

 3,280 

 1,280 

 1,320 

 1,070 

 2,760 

 2,680 

 4,940 

 2,680 

 9,640 

 5,560 

 6,560 

 1,040 

 5,400 

 3,160 

 5,040 

 2,770 

 2,930 

 5,360 

 2,760 

 3,640 

 6,880 

 7,120 

 1,480 



TaMe II— riant Food in Soils— Westera Washington 



COUNTY 



Chehalis ..., 



Clallam 



Clarke 



Island 



Jefferson , . . 

 King 



Kitsap 



Lewis 



Mason 



Pierce 



San Juan... 

 Skagit 



Snohomkh.. 

 Thurston,.., 

 "Wahkiakum 

 Wliatcom.. 



Type of soil 



Heavy clay loam. ., 



Sandy benches 



Sandy loam 



Ebey's prairie loam 



Clay loam 



Alder bottom land., 

 Vashon Island loam 



Clay loam 



Beaver dam 



Upland day loam.. 



Bottomland 



Alluvial loam 



Upland clay loam . . 



Tide flats 



Upland clay loam.. 



Upland loam 



Prairie sandy loam. 

 River bottom land.. 

 Upland clay loam. . 

 Alder bottom land.. 



Lime 



1^,720 

 20,100 

 17,960 

 48,560 



6,160 

 34,130 

 22,820 

 20,000 

 18,000 

 21,160 

 61,000 



3,400 

 20,900 

 19,840 

 21,060 

 27,780 

 13,910 

 30,840 

 27,360 

 33,120 



Potash 



5,760 

 6,160 

 10,720 

 27,040 

 600 

 5,440 

 4,920 

 4,100 

 6,960 

 5,560 

 6,640 

 4,460 

 1,840 

 4,280 

 4,980 

 5,650 

 4,570 

 14,640 

 9,780 

 8,760 



Phosphoric 



acid 



15,600 

 9,600 



xo ,JioO 



13,760 

 3,600 

 7,740 

 3,680 

 1,480 

 3,380 

 7,200 

 6,200 

 6,500 

 7,470 



10,180 

 8,760 

 9,370 

 9,870 

 5,050 

 7,960 

 6,280 



Nitrogen 



10,720 

 8,400 



10,280 

 9,200 

 6,600 



14,990 

 3,450 

 4,150 



12,720 

 9,280 



12,960 

 6,560 

 4,720 



13,480 

 3,900 

 3,340 



10,810 



14,280 

 8,680 

 7,200 



IVactical Eatings of Soil 



While the composition of the soil is 

 not necessarily a Certain index of its 

 crop-producing ability, a knowledge of its 

 plant food content makes it. possible to 



compare it with other soils of known 

 fertility, and so get a fairly accurate idea 

 of its probable relative grade or value 

 for agricultural purposes. As a result of 

 long-continued study of this subject the 



