Soil Test Experiment in 1918. 



43 



application is used on the Series in oats and one-eighth on the 

 Series that are in clover. 



The 1918 Yields. 



The yield of oats and potatoes obtained in 1917 are given 

 in Bulletin 269. The tabulated yields for 1918 follow. 



Soil Test Experiment. Series C Planted to Potatoes in 1918. 



The table shows the number of the plots, the yields per plot and the 

 calculated yields per acre. Each plot is one rod by four. They 

 are arranged in rows 91-99, 101-109, etc. Fertilizer was ap- 

 plied at the rate of 1200 pounds per acre. 







Yield per 



Plot 



Yield per Acre Hundredweight 



Plot 



Fertil- 

 izer* 









No. 

















Merchantable 



Culls 



Merchantable 



Culls 



Total 







lbs. 



lbs. 









91 



Cheek 



254.5 



23.5 



101.8 



9.4 



111.2 



92 



0-16-4 



250.0 



33.0 



100.0 



13.2 



113.2 



93 



4-4-12 



354.5 



31.0 



141.8 



12.4 



154.2 



94 



12-4-4 



320.0 



33.0 



128.0 



13.2 



141.2 



95 



12-0-8 



336.5 



19.5 



134.6 



7.8 



142.4 



96 



Check 



175.0 



39.5 



70.0 



15.8 



85.8 



97 



5-8-7 



282.5 



45.0 



113.0 



18.0 



131.0 



98 



0-4-16 



159.5 



32.0 



63.8 



12.8 



76.6 



101 



8-0-12 



396.5 



20.5 



158.6 



8.2 



166.8 



102 



4-8-8 



367.5 



23.5 



147.0 



9.4 



156.4 



103 



Check 



196.0 



29.0 



78.4 



11.6 



90.0 



104 



16-0-4 



291.0 



29.5 



116.4 



11.8 



12S.2 



105 



4-8 1 -8 



326.5 



26.0 



130.6 



10.4 



141.0 



106 



0-8-12 



196.0 



41.0 



78.4 



16.4 



94.8 



107 



20-0-0 



202.0 



33.5 



80.8 



13.4 



94.2 



108 



Cheek 



154.0 



28.5 



61.6 



11.4 



73.0 



111 



0-0-20 



260.0 



24.0 



104.0 



9.6 



113.6 



112 



16-4-0 



323.5 



26.0 



129.4 



10.4 



139.8 



113 



4-16-0 



308.0 



37.0 



123.2 



14.8 



138.0 



114 



4-8-10 



312.5 



29.0 



125.0 



11.6 



136.6 



115 



Check 



238.5 



23.0 



95.4 



9.2 



104.6 



116 



0-20-0 



170.5 



41.0 



68.2 



16.4 



84.6 



121 



4 2 -8-8 



332.5 



27.5 



133.0 



11.0 



144.0 



122 



Cheek 



251.0 



25.5 



100.4 



10.2 



110.6 



123 



12-8-0 



392.0 



29.0 



156.8 



11.6 



168.4 



124 



8-12-0 



338.5 



38.0 



135.4 



15.2 



150.6 



125 



8-8-4 



346.0 



35.0 



138.4 



14.0 



152.4 



131 



8-4-8 



315.0 



25.0 



126.0 



10.0 



136.0 



132 



0-12-8 



280.0 



21.5 



112.0 



8.6 



120.6 



141 



4-0-16 



285.5 



24.5 



114.2 



9.8 



124.0 



142 



4-12-4 



284.0 



29.5 



113.6 



11.8 



125.4 



151 



4 3 -8-8 



286.5 



28.0 



114.6 



11.2 



125.8 



^Phosphoric acid in form of floats. 2 Ammonia in form of dried blood. 3 Am- 

 monia 'in form of tankage. 4 The percentages of fertilizer are indicated in the 

 order of ammonia, phosphoric acid and potash. Thus 0-20-0 means ammonia 

 per cent, available phosphoric acid 20 per cent and potash per cent. Except as 

 indicated otherwise in the footnote one-third of the ammonia is in the form of 

 nitrate of soda and two-thirds as sulphate of ammonia; the phosphoric acid as 

 acid phosphate and the potash in water soluble form. 



