14 



N. H. AGR. EXPERIMENT STATION. 



[Bulletin 163 



application of "lime marl" was made to one half of all the plots, but neither 

 from this or the previous application of "agricultural lime" has any effect 

 been noted. 



The following table will show the comparative average yield of hay from 

 the plots which have been fertihzed the same each year for the period of 

 six years during which the experiments have been conducted. 



COMPARATIVE AVERAGE FOR 1907, '08, '09, '10, '11 AND '12. 



Application per acre. 



Hay per acre. 



Nitrate of soda 



Sulfate of ammonia. . . . 

 Tankage "9-20" grade 



Land plaster 



Nitrate of soda. 



Sulfate of ammonia. . . 

 Tankage "9-20" grade 

 Acid phosphate 14% . . 



Rock phosphate 



Basic slag 



Ground bone 



Muriate of potash. 



Sulfate of potash 



Wood ashes 



Manure 



Nitrate of soda .... 



Acidphosfate 



Nitrate of soda .... 



Muriate of potash . . 



Acid phosfate 



Muriate of potash. . . 



Nitrate of soda .... 



Acid phosfate 



Muriate of potash . . 

 No fertilizer 



200 lbs. 



150 



175 



450 



400 



300 



350 



430 



220 



350 



220 



120 



125 



900 



10 tons. 

 200 lbs. 

 215 

 200 



60 

 215 



60 

 135 

 145 



40 



2.392 tons. 



2.037 " 



1.884 " 



1.520 " 



2.753 " 



2.318 " 



1.964 " 



1.823 " 



1.544 " 



2.028 " 



2.095 " 



1.721 " 



1.838 " 



1.980 " 



2.094 " 



2.306 " 



2.376 " 



1.703 " 



2.066 " 



1.723 " 



Alfalfa. 



In the spring of 1911 the plots seeded in August, 1909, and 1910, were so 

 badly killed out that they were plowed up. From the plot seeded in August, 

 1911, two cuttings were made this season. A very good catch was secured 

 in about two thirds of this plot, the other third being badly infested with 

 witch grass. 



In August, 1912, thirteen plots 12 feet square were planted with seed of 

 different strains and from different sources to test their yields and hardiness. 



Pasture Improvement. 



The object of this experiment was to determine to what extent, by what 

 means, and at what expense the average New Hampshire pasture can be 

 improved. The work has been in progress four years and was completed 

 October 1 of this year. The results will be published in bulletin form during 

 the coming winter. 



Timothy Selection and Breeding. 



This project was begun this season, 1,200 individual plants being set out 

 in separate hills. 



