All plots were topdressed twice each jear. once in early spring and 

 after the first harvest. Each topdressing was at the rate of 500 pounds per 

 acre of 0-20-20. 



Another Ladino test was planted at the Young Farm. Dover. New Hamp- 

 shire, on July 15, 1953. The soil was also Charlton loam, but somewhat 

 more droughty than the test area at the Bunker field. The land was plowed 

 in the spring, summer-fallowed until July 15, and fertilized with 600 pounds 

 of 5-10-10 and limed with 2500 pounds per acre at seeding. Previous pH 

 determinations had indicated that this area was in the range of 5.8 to 6.0. 



The design was a split plot, with three plots seeded to Ladino and three 

 to a mixture of Ladino and bromegrass for each seed lot. Nine seed lots 

 were planted in this test, including three sources of Pilgrim, a very large 

 type of polyploid Ladino developed in Vermont, and five other sources of 

 Ladino clover. 



All Ladino sources were seeded at three pounds per acre, except Ver- 

 mont polyploid which was seeded at five pounds to compensate for the 

 larger seed size of this strain. The bromegrass in the mixture was seeded 

 at 15 pounds per acre. Here, as on many small experimental plots, seeding 

 rates were considerablv higher than would be recommended to farmers. 



All plots were topdressed twice each year, once in early spring and 

 after the first harvest. Approximately 400 pounds per acre of 0-15-30 

 were used for each topdressing on the Ladino plots and 400 pounds of 

 8-16-16 on the mixture. 



Because of a heavy infestation of sheep sorrel in 1954 and the severe 

 drought in 1955, only two yield harvests were made each year. Botanical 

 separations were made from each plot as in previous tests. 



A third Ladino test was also seeded on Charlton soil at the Young 

 Field, Dover, New Hampshire, June 4, 1955. The land had previously been 

 fertilized in 1954 with 600 pounds per acre of 5-10-10. 10 tons of manure, 

 and limed at 3 tons per acre. In 1955, 2 additional tons of limestone were 

 applied plus 600 pounds of 8-16-16 per acre at seeding. 



Eleven seed lots were planted in this test, including four sources of Pil- 

 grim, Commercial Ladino, Vermont Polyploid, New Zealand white clover, 

 and four other lots. The design was a split plot, with three plots seeded 

 to Ladino and three to a Ladino-bromegrass mixture for each seed source. 

 However, four of the seed lots were planted only in three plots of Ladino 

 alone because of an inadequate seed supply. The clover was seeded at three 

 pounds per acre except for Vermont Polyploid which was seeded at six 

 pounds. Fifteen pounds of bromegrass per acre were seeded in the mixture. 



Two topdressings were made in 1956. each at approximately 500 pounds 

 per acre of 8-16-16 on the mixture and 500 pounds of 0-15-30 on Ladino 

 alone. Three harvests were made in 1956. 



Experimental Results and Discussion 



Results for the test on the Bunker field are given in Table 7. Certified 

 Oregon and Pilgrim were the highest in yield in this test. These two lots 

 did not differ significantly, but both were significantly higher in yield than 

 commercial non-certified Ladino. 



Certified seed performed more satisfactorily than non-certified seed: this 

 has also been observed in other Northeast states. Lowest yields were ob- 

 tained in the very dry season of 1953. In the combined analysis for the 



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