Field Experiments on Swedish Turnips. 
323 
WoBuuN EooT Experiments in 1881 in Lansojie Field, Chop Swedish 
Turnips (Gibbs's Selected Purple-top), each Plot \ of an Acre, 
separated from the rest by j'^ths 2^ feet in width. 
No. 1. A. No. 2. A. No. 3. A. No. 4. A. No. 5. a. I No. 6. a. No. 7. a. No. 8. a 
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No. 5. B. No. 6. b. No. 7. b 
No. 8. B. 
No. 1. B. I No. 2. B. 
No. 3. B. 
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the plot manured with ground coprolites. Not much difFerence 
could be noticed between the roots manured with dissolved 
coprolites and those treated with dissolved bones. In plots 8 A 
and B (manured with guano and superphosphate) the swedes 
had larger tops than the rest. 
With these exceptions there was very little perceptible dif- 
ference in the appearance of the swedes on the several plots. On 
closer examination, however, I noticed that on the unmanured 
plot 1 in Section A, a good many swedes were attacked by 
anbury, and that in Section B, plot 5 (manured with precipi- 
tated phosphate of lime), many roots also were diseased and 
attacked by anbury. 
The swedes grew steadily without a check throughout the 
summer, and were quite ripe by the 7th of October. They were 
pulled on the 7th of October and following days, topped and 
tailed, and the whole produce of each quarter-acre plot was 
weighed, the results incorporated in the following Table being 
obtained : — 
