Soil Test Experiment in 1918. 



45 



Soil Test Experiment. Series B Planted to Clover in ipi8. 



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, 51-58, 6i-6g, etc. Fertilizer was ap- 

 plied at the rate of 150 pounds per acre. 



Plot No. 



Fertilizer 4 



Yield per Plot— Lbs. 



Tons per Acre 



51 



20-0-0 



83 



1.6C 



52 



0-12-8 



88 



1.76 



53 



Check 



48 



.96 



54 



8-0-12 



37 



.74 



55 



5-8-7 



51 



1.02 



56 



16-4-0 



50 



1.00 ■ 



57 



8-12-0 



69 



1.38 



58 



Check 



26 



.52 



61 



12-8-0 



79 



1.58 



62 



4-0-16 



64 



1.28 



63 



4-8 1 -8 



47 



.94 



64 



4-16-0 



57 



1.14 



65 



Check 



61 



1.22 



66 



4-8-8 



79 



1.58 



67 



16-0-4 



57 



1.14 



68 



12-4-4 



43 



.86 



71 



4-8-10 



68 



1.36 



72 



Check 



47 



.94 



73 



8-8-4 



63 



1.26 



74 



4-4-12 



64 



1.28 



75 



0-0-20 



32 



.64 



76 



0-16-4 



76 



1.52 



77 



Check 



44 



.88 



78 



4 2 -8-8 



29 



.58 



81 



4-12-4 



80 



1.60 



82 



0-4-16 



49 



.98 



83 



12-0-8 



68 



1.36 



84 



Check 



31 



.62 



85 



8-4-8 



51 



1.02 



86 



4 s -8-8 



58 



1.16 



87 



0-8-12 



53 



1.06 



88 



0-20-0 



55 



1.10 



iphosphoric 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. 



