356 THE POTATO 



potato sections of the United States. Consider- 

 able attention has been given in this section to the 

 development of the seed-growing phase of the 

 industry. 



"Most of the potato stock grown in this state is 

 raised from home-grown seed. There has been 

 considerable deterioration in potato seed in the 

 last few years, and there is a great need in this 

 state for more uniformity in varieties grown. 

 Very often the standard sorts in demand on the 

 markets have been supplanted by coarse, imi- 

 tative sorts. The Wisconsin Experiment Station 

 through its extension service is endeavoring to 

 remedy this matter by encouraging community 

 centres where one variety can be grown. The 

 important commercial varieties in this state are, 

 for late, Rural New Yorker, Sir Walter Raleigh, 

 Carman No. 3, Burbank, and Peerless; early ya- 

 rieties, Early Ohio, Early Rose, and Triumph. A 

 number of growers are becoming interested in the 

 Irish Cobbler, but this variety has not been grown 

 on a wide enough scale to judge its adaptability. 

 The Rural New Yorker, Sir Walter Raleigh, and 

 Carman No. 3 are mixed in car shipments. Most 

 buyers grade potatoes according to type rather 

 than variety, and round white varieties are usually 

 graded together in car shipments. In many lo- 

 calities the standard Burbank has disappeared, 

 and especially on the poorer soils a coarse variety, 

 the Late Pride, has taken its place. This substi- 

 tution has caused considerable difficulty both at 

 the loading stations and on the markets. 



"On the heavy types of potato land in this 

 state fall plowing is often practised. On the 

 sandy loam soil potatoes are usually planted on 

 spring plowed land. Especially in places where a 



