FIELD CROPS. 219 



Potatoes, variety tests, S. B. (Ireen {Minnesota Sta. Bui. 45, pp. 

 200-307, Jig. 1). — Is'otes and tabulated data are given on 45 varieties of 

 potatoes tested at the station farm, 23 varieties in Lyon County, and 

 1<) varieties in McLeod County. Among- tlie largest yields per acre 

 are the following: At the station farm. Rural New Yorker No. 2, 388 

 bu.; Lee Favorite, 340 bu. ; Early Everitt, 343 bu,; Early Oxford, 328 

 bu., and Irish Cobbler, 32;") bu.; in Lyon County, Worlds Fair, 551 bu. ; 

 American Wonder, 528 bu.; Irish Daisy, 510 bu.; Early Oxford, 470 

 bu., and Pearl of Savoy, 407 bu. In McLeod County the highest yield 

 was given by Summit, 227 bu. 



Notes are given on 17 of the newer varieties of potatoes grown on 

 the station farm in 1894. 



Variety trials with potatoes, W. J. Green and H. O, McFadden 

 {Ohio IStd. liul. (15, pp. 1 11-151). — The authors begin with a discussion 

 of the difficulties and value of variety tests of potatoes. May 16, 17, 

 and 19, 1895, on duplicate sixtieth-acre plats on a clay loam soil, 71 

 varieties of potatoes were planted in 2 eye pieces 10 in. apart in 

 33i-inch rows. The yields are tabulated for 1894 and 1895. Sixteen 

 varieties are mentioned as above the average in yield, American Won- 

 der, Columbus, Carman No. 1, Early Northern, Forest Rose, and Irish 

 Daisy leading. 



Tabulated yields are given of a test of varieties at two substations 

 and at the central station. The results were unsatisfactory. A com- 

 parison was also made between northern seed and second-crop southern, 

 with inconclusive results. 



Descriptive notes are given on 42 varieties. 



Potato culture, results of 1894 and 1895, A. Girard {Prog. Agr. 

 et Vif., 13 {1895), JSfo. 20, pp. 550-550). — An account of cooperative 

 experiments in potato culture participated in by 88 experimenters in 

 1894 and by 68 in 1895, under direction of the author. The plowing 

 was done at depths of 7 to 8 in., and in some cases as deep as Hi to 15 

 in. Both barnyard manure and commercial fertilizers were applied 

 liberally, in most cases at the time of planting. Whole tubers were 

 used almost exclusively, planted 19^1- by 23.4 in. 



The largest yield reported was in 1894, 623.2 bu, per acre; the yield 

 on the same farm in 1895 was 235 bu, per acre, tlie difference being due 

 to drought. In 1894 11 farms, and in 1895 7 farms, averaged over 5194. 

 bu. per acre. The percentage of starch was lower in the potatoes grown 

 during tlie wet summer of 1894 than during the <lry summer of 1895. 



Culture of the potato in Algeria, II. Hitier {Jonr. Agr. Prat., 00 

 {1896), I, X<>. 24, pp. 872, 67o).— Tlie difficulty with potato culture in 

 Algeria, according to the author, is that the seed has to be renewed 

 every year from France or other foreign country. Richter Imperator, 

 liowever, has been cultivated tliere successfully for years. Two 

 crops of potatoes can be raised every year in the littoral region, the 

 6128— No. 3 4 



