Agricultural Research in New Hampshire 23 



siderable storage losses would also be eliminated. If certified seed grow- 

 ers could ship seed potatoes that had been kept from sprouting by some 

 method such as this it would save them mone\' and they would have bet- 

 ter seed for the market. 



P. T. Blood, L. T. Kardos 



A Dairy Farm Rotation in Southern New Hampshire 

 With Sweet Corn as a Cash Crop 



In this experiment, located on the C. T. Lane farm in Chichester, 

 sweet corn was again grown in 1944 with different fertilizer — a side 

 dressing treatment of 260 pounds of nitrate of soda per acre, and manure. 



Erban and \''anguard oats were used as a nurse crop for seeding 

 down to two new strains of timothy which were developed in the plant- 

 breeding program. Oats and timothy will both be harvested for seed. 

 Seed of the late hay strain was harvested in 1944 from the seeding made 

 in 1943. 



In 1944, sweet corn yields Mere somewhat lower than in previous 

 vears due to an adverse growing season. Side dressing M'as performed 

 just at the beginning of a period of heat and drought, and at the time of 

 second cultivation. As in previous years, dry weather immediately fol- 

 lowing a side dressing has tended to nullify the effects of this practice. 



The basic treatment was applied with a fertilizer attachment on the 

 planter at planting time. The side dressing of 260 pounds of nitrate of 

 soda per acre was put on with a two-row cultivator which had fertilizer 

 attachments. The date of side dressing coincided with the second culti- 

 vation, July 14. 



So far as the data are concerned they show no advantage, certainly 

 for side dressing, and probably no difference for the fertilizer grades 

 used as variables. 



On other sections of the field sweet corn was grown with manure 

 as a variable and also ^ith fertilizer or side dressing variations. The 

 average yield of all plots receiving 30 tons of manure was 4.46 tons per 

 acre while the yield of the 15 ton pots was 3.83 tons, a difference of .63 

 ton of sweet-corn ears for the added 1 5 tons of manure. This is a larger 

 difference than has been reported in previous years, probably because 

 of the effect of the larger manure application in increasing the organic 

 and water content of the soil. 



An attempt was made, in 1944, to determine which element, N, 

 PvOr, or K2O is responsible for increasing yields when suitable carriers 

 are applied as side dressings. The resulting data are not convincing in 

 any respect, probably due to the adverse weather encountered after the 

 side dressing operation. 



F. S. Prince. P. T. Blood 



The Relation of Potash Levels to the 

 Persistence of Clover in Hay Stands 



This project is located on a terrace of the Connecticut River. Plots 

 1 - 46 on this field were top-dressed again in 1944 and harvested accord- 



