338 EXPERIMENT STATION RECORD. 



lated results show that green manure with phosphate gave a decrease 

 of 12.9 per cent, with potash 2.0 per cent; and green manure alone 

 gave an increase of 5.3 per cent, green manure with boue meal A 6.25 

 per cent, green manure with bone meal B 7.4 per cent, barnyard manure 

 with superphosphate 27.7 per cent, and barnyard manure alone 50.9 

 per cent. 



In the second series of experiments with rye the influence of the fol- 

 lowing fertilizers was studied: (1) Superphosphate 416 lbs. per acre, 

 (2) nitrate of soda 416 lbs., (3) Berliner's bone meal A 356 lbs., and (4) 

 Berliner's bone meal B 178 lbs. The tabulated results show an increase 

 of the yield in all cases: For bone meal B 11 per cent, bone meal A 35 

 per cent, nitrate of soda 35 per cent, and superphosphate 49.6 percent. 



The third series of experiments was designed to study the influence 

 of phosphate and potash as compared with that of manure. Potash 

 was applied at the rate of 416 lbs., and phosphate at the rate of 370 

 lbs. per acre. The results were as follows : Phosphate gave a decrease 

 of 9 per cent, while potash gave an increase of 0.82 per cent, and 

 manure an increase of 16.8 per cent. 



Oats. — The object of the first series of experiments with oats was to 

 investigate the action of the following fertilizers on the yield of oats: 

 (1) Bone meal A 356 lbs. per acre, (2) bone meal B 178 lbs., and (3) 

 nitrate of soda 416 lbs. The results show that nitrate of soda gave a 

 decrease of 30 per cent and bone meal a decrease of 4.4 per cent, while 

 bone meal B gave an increase of 7 per cent. 



The second series was carried out on the plats which had been used 

 the preceding year for experiments with rye similar to those of the first 

 noted above. The following fertilizers had been applied the preceding 

 year: (1) Manure alone 35,600 lbs. per acre, (2) manure with 416 lbs. of 

 superphosphate, (3) superphosphate 416 lbs. ; and (4) nitrate of soda 416 

 lbs. The results were as follows: Nitrate of soda gave an increase of 

 2.5 per cent (the increase of rye the preceding year was 37.2 per cent), 

 superphosphate 5.3 per cent (rye preceding year 2.3 per cent), manure 

 24.8 per cent (rye preceding year 18.5 per cent), and manure and super- 

 phosphate 27 per cent (rye preceding year 12.8 per cent). 



The third series of experiments with oats was made on the same plats 

 devoted the preceding year to experiments with rye similar to those of 

 series 2 noted above, the object being to ascertain the influence of the 

 fertilizers under rye on the succeeding oats. The following fertilizers 

 were used: (1) Green manure with 416 lbs. of phosphate, (2) green 

 manure with 416 lbs. of potash, and (3) green manure alone. Green 

 manure alone gave a decrease of 0.28 per cent and green manure with 

 phosphate and potash a decrease of 0.72 per cent; while the preceding 

 year the increase in the first case was 19.5 per cent and in the second 

 case 57.5 per cent. 



Experiments were also made on plats on which rye was grown the 

 preceding year with the following fertilizers : (1) Manure 35,600 lbs. per 



