June, 1921] DIGGING UP FACTS FOR NEW HAMPSHIRE FARMS 17 



POTATO SEED BRINGS 114-BUSHEL INCREASE 



An experiment conducted with regard to certified Maine po- 

 tato seed showed a yield of 416 bushels per acre, an increase of 

 114 bushels over the alternate rows of non-certified Maine seed. 

 This experiment was run in 1920, and as a result orders for 6000 

 bushels of certified seed were placed by farmers in the state 

 for the next spring. If this seed continues to produce such high 

 yields the effect of its introduction in future crops will be very 

 great. 



ORCHARD PRUNING AND FORESTRY INVESTIGATIONS 



Not all of the work for better crops is confined to the question 

 of seeds and the breeding and testing of varieties. The Station 

 is conducting an important long-time experiment to determine 

 the best system of pruning in the orchard. Its experiments in 

 thinning fruit have demonstrated that the percentage of Number 

 1 apples may in seasons when the set is very heavy be increased 

 from about 40 per cent to nearly 70 per cent. It is studying the 

 effect of ringing; and its research work in fruit bud formation has 

 resulted in scientific data of national importance. Its Forestry 

 Department is studying the conditions which are most favorable 

 for the growth of the various tree species; and in determining the 

 cost of thinning immature white pine it is conducting an experi- 

 ment that is likely to have an important bearing on the handling 

 of the white pine crop, the state's third most important source of 

 agricultural income. The storage of vegetables in pits has been 

 investigated, and the best methods of pit storage under climatic 

 conditions in the southern part of the state have been determined. 

 The cost and methods of land drainage, which were determined 



SOME TIPS ON NEW HAMPSHIRE CORN." 





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The central ear is "New Hampshire 500. 



