II Sept., 1911.] Potato Experimental Fields, 1910-11. 



635 



TouRELLO Plot. 



This plot was planted on Mr. Troup's farm on the ist November, 19 10, 

 and proved the most successful plot of the series. Eleven different \arie- 

 ties of potatoes were planted. Of these four are well known to growers 

 in the district; viz.. Brown's River, New Zealand Pinkeye, Scotch Grey, 

 and Copperskin or Orange Pinkeye. 



The soil was a good chocolate volcanic, which had received a light 

 dressing of farmyard manure before the first ploughing in the autumn. 

 To this was added the dressing of artificial manures .set out in Table I. 

 The condition of the land at the time of planting was very satisfactory. 

 Much of the success of the plot is due to the fact that it was well prepared 

 and received every attention during the growing period. 



The plot was practically free from Irish Blight. The New Zealand 

 Pinkeye and Copperskin were both found to be more or less affected by 

 scab which has been common to these varieties for some years past. 



Manures. — As already mentioned, the plot received a light dressing of 

 farmyard manure. To this the following chemical manures were added : — 

 Superphosphate, a minimum dressing of 2 cwt. and a maximum of 4 cwt. ; 

 superphosphate, 2 cwt., and sulphate of ammonia, i cwt. ; and super- 

 phosphate, 2 cwt., and sulphate of potash, i cwt. 



VII.— TouRELLo Plot. 



S3ctions 



Vanety. 

 •Clarke's Main 



Crop 

 Copperskin 

 New Zealand 



Pinkeye 

 Scotch Grey 

 Brown's River . . 

 State of Maine . . 

 Black Prince 

 Fox's Seedling . . 

 <3reen Mountain 

 Carman No . 3 

 Brownell's Beauty 



Averages 



Number of Misses in Plants per Section of Carman So. 3. 



Varieties. — As far as the cropping ca[)acity of the varieties i.s con- 

 cerned, the heaviest vit'ld was obtained from Clarke's Main Crop, a very 

 vigorous growing, hardy variety, a good cropper and cooker somewhat 

 resembling Up to-Dale in type. This variety is regarded in th>' Old Couiv 

 try as a good disease resister. In one .section it returned ii t<>n^ i; cwt. 

 per acre, the average of all the .sections L)eing lo tons i8 cwt. i (]r. 



One iiotictMble feature of the variety test is the very s.ilisfai t<)ry yield> 

 «'li(aine<l from (hrrc of the standard varieties, viz.. Brown's Kivr. 6 t'lis 



