398 EXPERIMENT STATION RECORD. 



In 1894 one was sown to oats and the other to corn; the order was 

 reversed in 1895. The following table coutaius the summary of tlie 

 yields per acre of both crops : 



Summary of i/ieldii for 1S95. 



Oats, hay 



Corn, ear.s ' . . . 

 Corn, stover 2. 



I Phosphntio 



Bone and ! slag, nitrate 



muiiato of i of soda, and. 



))otash. ' niuriatpof 



I potash. 



Pounds. I Pounds. 

 3,580 I 5,134 



H, 410 ' 4,231 



2,000 •■ 3,091 



• Moisture, 28 per cent. ^Moisture, 19.1 per cent Avhon harvested. 



The anthor concludes that for two successive seasons phosphatic 

 slag used in connection with nitrate of soda has been a very efficient 

 substitute for gronnd bone. 



Field experiments -with fertilizers, C. S. Phelps {Connecticut 

 Starrs 8ta. Rpt. 1895, 2>p- 101-110). — These consisted of special nitrogen 

 experiments on corn, cowpeas, and soja beans, and soil tests at the 

 station and on one other farm. 



Special nitrogen experiments (pp. 101-107). — May 30, uniform applica- 

 tions of dissolved bone black and muriate of potash were made on 8 

 fiftieth-acre plats, to 7 of which nitrate of soda or sulphate of ammonia 

 in varying amounts were also added. Two plats served as checks. 

 May 31, 2 varieties of corn, differing considerably in content of pro- 

 tein, were planted on the plats in check rows 3 ft. each way. The 

 data are tabulated. 



The author states that there was a marked increase in the yield on 

 the nitrogenous plats over the plat to which only mineral fertilizers 

 were used, and that the latter gave but slight increase over the check 

 plats. 



On a- like series of plats similarly fertilized cowpeas were planted in 

 3-foot drills May 31. The yields are tabulated. A])plicatious of 

 nitrogen did not increase the yield. The author concludes that the 

 crop can be readily grown on soils of moderate fertility withont the use 

 of nitrogenous fertilizers. 



Two series of plats similar to those upon which the corn and cow- 

 peas were grown were planted to soja beans. Soil on which soja beans 

 had grown the previous year was sprinkled over one series of plats. 

 The results are tabulated. But few tubercles were found on the inocu- 

 lated plats and none on the others; and there was no material differ- 

 ence in the yields attributable to this treatment. 



Soil-test experiment (pp. 107-109). — The results are given for the 

 sixth year of a rotation soil-test experiment on the station farm. The 

 crops in x)revious years had been corn, potatoes, oats, cowpeas, and corn. 

 Potatoes were grown in the present case. Two half acres were divided 



