16 N. H. AGE. EXPERIMENT STATION. [Bulletin 151 



separately, and, when cured, husked and weighed separately. The yields may 

 either be kept in pounds per row or figured to bushels per acre. 



By the method as above outlined, the breeding and selection work may be 

 carried on indefinitely. New blood is tested out every year, and the best 

 blood of each year's test is united with the accumulated pure blood of all the 

 previous years' tests. In five years' time a strain of corn will be obtained 

 whose ancestors for four generations are definitely known and have proven 

 themselves to be good producers. In our own work we have this j r ear secured 

 the cross N. H. 400, and next year will have N. H. 500, a strain whose pedi- 

 gree is known and can be written as shown in the diagram. 



The variety of corn we have worked with is the Minnesota 13, a yellow dent 

 type secured from the Minnesota Experiment Station in 1907. The strain of 

 which we have now secured is believed by the writer to be one of the earliest 

 strains of dent corn grown anywhere in the country. For the past two year 3 

 it has been only a few days later than the earliest flint varieties grown here 

 on the college farm, and in an average season it should mature most anywhere 

 in the southern half of the state. 



The ear-row tests and breeding can be conducted with any variety of corn, 

 and although the work may seem to call for a lot of "fussing around" it will 

 be found to be intensely interesting and in the end profitable. The writer 

 would be glad to correspond with any who are sufficiently interested to make 

 a beginning and to give them any suggestions or assistance possible. 



3. Variety Tests of Small Grains. 



Objects. (1) To determine the comparative yields of grain and straw of 

 the more common varieties offered by the New England seedsmen. (2) 

 To note the seasonal variations and the general adaptability of the dif- 

 ferent varieties. 



In 1909 the following tests were made: Nine varieties of oats on one- 

 fifteenth-acre plots; five varieties of barley on one-fifteenth-acre plots; two 

 varieties of spring wheat on one-fifteenth-acre plots; one variety of spring rye 

 on one-fifteenth-acre plot; one variety of winter wheat on one three-quarter- 

 acre plot. The detailed results of these tests and all those of preceding years 

 were published as Bulletin No. 145, in December, 1909. 



4. Fertilizer Tests on Grass Land. 



The objects and scheme of this project were published in the last Biennial 

 Report and need not be repeated here. The different fertilizers were applied 

 April 2Gth and 27th and the grass cut July 7th and 8th in 1909. Owing to the 

 dry season, the effects of the various chemicals were not as noticeable as in 

 previous years, especially where the lighter applications were made. The 

 average yield of the "no fertilizer" plots was one ton per acre. The largest 

 yield was 1.8 tons with an application of 400 lbs. per acre of nitrate of soda. 

 The smallest was .84 tons with an application of 220 lbs. of rock phosphate. 



In 1910 the fertilizers were applied April 28th and 29th, and the grass cut 

 July 11th and 12th. The average yield of the "no fertilizer" plots was 1.896 

 tons per acre. The heaviest yield was 3.41 tons with the application of 



