IQ N. H. AGR. EXPERIMENT STATION [Bulletin 208 



of the corn was relatively low at cutting time. The samples marked with 

 an asterisk were well matured. Eureka, Cuban Giant and Luce's Favorite 

 were relatively immature. The maturity and dryness of the corn explain 

 the comparatively high percentage of fat and protein. 



1921 Ensilage Samples — Computed to Green Weight Basis 



Sample No. 



Eureka 



♦Cornell No. 11. . .. 



Imp. Learning 



Leaming , 



Cuban Giant 



Clarage 



Red Cob 



*N. H. 500 



Brewer's Dent 



Early Lakeside. . . . 



*Webber Dent 



*Minnesota 13 



*Early Yellow Dent 



Luce's Favorite. . . 



*Pride of North 



*Sanf ord 



Sunflowers 



Carbohy- 

 drates 



19.34 

 29.40 

 21.05 

 21.10 

 19.70 

 20.04 

 19 . 39 

 28.02 

 21.94 

 22.31 

 23.11 

 23.68 

 24 . 40 

 12 . 43 

 23.83 

 29.40 

 20.29 



Ash 



1.07 

 1.16 

 0.97 

 0.90 

 0.90 

 0.87 

 0.98 

 02 

 10 

 98 

 05 

 19 

 08 



0.61 

 1 13 

 1.05 

 1.41 



Soil Rejuvenation Studies. 



Tliis project was started in 1920 by M. G. Eastman (Agronomy) and H. 

 R. Kraybill (Agi-icultural Chemistry) for the purpose of studying the effects 

 of the use of green manures and fertilizers on the productivity of neglected 

 lands which have been cropped in hay continuously for a long period of years. 

 The plots, one quarter acre in size, are located upon a sandy loam soil and 

 run in duplicate. Previous to the planting the lime requirement of the 

 soils of each plot was determined by the Veitch method and ground lime- 

 stone to the extent of 80 per cent, of the requirement was applied: 



The plot treatments are as follows : 



No. 1— Fall plowed and seeded to rye and vetch; this crop plowed under 

 in the spring and seeded to oats and clover, timothy and red top. 



No. 2 — Fall plowed and seeded to rye and vetch, this crop plowed under 

 in the spring and seeded to oats and peas to be plowed under in later summer 

 and again seeded to rye and vetch to be plowed under the following spring, 

 when the plot is to be seeded to oats with timothy, clover and red top. 



No. 3 — Same as No. 2 except that buckwheat and soy beans are sub- 

 stituted for oats and peas in the series. 



No. 4 — Fall plowed and seeded to oats with clover and timothy the fol- 

 lowing spring. 



In order to study the effect of certain mineral fertilizers each of the fore- 

 going plots was divided into five sections, which were treated as follows: 



