6 New Hampshire Experiment Station [Bulletin 239 



area. The balance of the state was called a deficit region. To 

 gather other data the state was divided into three areas. Area I, 

 Coos and Grafton Counties, is the surplus region; Area II, Merri- 

 mack and Rockingham Counties is a deficit region in the vicinity of 

 larger markets; and Area III which includes scattered growers 

 supplying local markets in the balance of the state. In part of the 

 tables, wherever accuracy would not be sacrificed, averages of data 

 for both years of the survey have been used to give a better picture 

 of usual conditions. 



TABLE III 



Potatoes — Purchases from Retail Stores, Hotels and Camps, from Farmers 



and from Others. 



District 



Potatoes ( bushels ) 



From 



farmers 



From others 



Total 



June and July 



AuR. and Sept. 



Oct. to May 



1. Upper Coos . . . . 



2. White Mt 



3. Lake Region 



4. Sullivan 



5. Cheshire 



6. Merrimack Valley 



7. Coast 



Total 



21,150 

 26,340 

 32,890 

 29,280 

 14,050 

 75,660 

 24,190 



223,560 



IH 

 14, 

 62, 

 24, 

 47 

 221 

 46 



630 

 050 

 720 

 700 

 ,840 

 430 

 090 



435,460 



Climate 



The northern part of the state is more favorably located than 

 the southern part for the production of large yields. Both latitude 

 and altitude effect a cooler growing season favorable for larger 

 yields. In 1926 rainfall was conducive to- a large crop. In 1927 

 rainfall was too heavy and yields were somewhat lower. 



The southern part of the state suffered from lack of rainfall 

 in 1926 and yields for the most part were low. In 1927 more than 

 the usual amount of rain increased yields but also fostered diseases. 



The twenty-five year average rainfall for the five months, 

 May to September inclusive, at Durham is 17.03 inches. In 1926 

 about half this amount or 8.95 inches was recorded. In 1927 nearly 

 double the normal amount, 30.95 inches, fell. This was nearly four 

 times the 1926 rainfall. 



This amount of rainfall at Durham was typical of the southern 

 part of the state for the crop years 1926 and 1927 and for the 

 average, and had a marked influence on yield of potatoes. 



The importance of the relation of rainfall to yield is shown 

 by a study made by the New England Crop Reporting Service. '2) 

 The five low rainfall years were years of higher yields than the 

 five high rainfall years. However, certain restricted areas may 

 have so little rainfall as to reduce the yield. This occurred in 

 southern New Hampshire in 1926. 



