28 X. H. Agr. Experiment Station [Bulletin 313 



particular tree is on, are also under way at the horticultural farm. 

 {Bankhead-J oyiex Offi^ct Fund) 



Experiments in Vegetable Gardening 



J. R. Hepler entered the New Hampshire Hybrid egg-plant in the 

 All-American trials and received a silver medal for excellence. 



In an effort to find a popcorn which would mature under New 

 Hampshire conditions with a good yield, a high degree of expansion 

 and good quality when popped, about 80 varieties and strains were 

 planted. There was very little difference in expansion between the 

 different types of popcorn grown excepting that the Spanish or 

 Large Pearl types and the Tom Thumb or Small Pearl types were 

 distinctly inferior to the others in expansion. As far as eating qual- 

 ity is concerned, the hulless types were distinctly superior in tender- 

 ness and flavor. 



To test hybrid and open-pollinated corns, about 150 different vari- 

 eties and strains were planted. The hybrids proved better, having 

 straighter rows, more even maturity, larger ears, bigger yields and 

 better quality than the open-pollinated types. Nearly all Golden 

 Bantam hybrids and those containing inbred P 39 are of fine eating 

 quality, but the Whip crosses and the C 6 hybrids are not so good. 



The variety test plots of the vine crops, cabbage and tomatoes 

 were under water part of July and August, and the yields were too 

 low to be of any value. 



Soil acidity tests with spinach showed that applications of manure 

 are necessary in order to grow a really satisfactory crop. Tests 

 were made under controlled conditions in the greenhouse and sub- 

 stantiated outdoor tests as well as the experience of practical 

 growers. 



Mr. Hepler also conducted an experiment to determine the ferti- 

 lizer needs of Blue Hubbard squash. One pound of 5-8-7 and one 

 forkful of manure in the hill gave the largest yield. Manure alone 

 in the hill did not give so many squash, but the size was about the 

 same in both plots. Densities of the various strains of Blue Hubbard 

 were compared. {Hatch Fund) 



Transplanting Ornamental Trees 



Observations on transplanted 5' to 7' sugar maple trees from the 

 nursery and from the woodland and also 5' to 7' nursery trees of 

 white ash were continued dui'ing 1938. This study to determine the 

 best time for transplanting ornamental shade trees was begun by 

 H. S. Clapp in the autumn of 1936. The data indicate that for this 

 area early fall transplanting and early s))ring trans])lanting are 

 preferable to late fall transplanting and late spring transplanting. 

 {Hatch Fund) 



Sustained Yield Study in Northern New Hampshire 



The sustained yield study in Coos county (and Essex county, Ver- 

 mont) which has been in progress for several years, made good 

 headway during 1938. The project is administered l)y the U. S. 

 Eorest Service in cooperation with the state forestry departments, 

 extension services and agricultural experiment stations of New 

 Hamjishire and \'ermont. Detailed maps are being prepared for 

 each township together with data on area of timber, growth, type, 



