268 



Bulletin 310 



in the production of a mixed fodder containing about ? soy bean plants 

 when harvested. The grower stated that the yield of corn fodder was 

 apparently reduced somewhat where the soy beans were planted between 

 the hills. The beans made an excellent growth, but no tubercles were 

 found on the roots. No weights were reported and the work was not 

 supervised by the College of Agriculture, 



COOPERATIVE EXPERIMENTS 



During three successive seasons, cooperative experiments with soy beans 

 grown in cornfields have been made by farmers in different parts of the 

 State. The College of Agriculture furnished the soy bean seed and directed 

 that it be planted with the usual amount of corn on a part of the experi- 

 menter's cornfield. Weighings from to^ acre or more of corn grown 

 without soy beans, and of the mixed corn and soy bean fodder, were to 

 be made at harvest time. The proportion of soy bean fodder in the mixture 

 was to be determined by separation and weighing, also. The same plan 

 was followed for two years, 1908 and 1909. During both years only a 

 part of the experimenters were able to report results that were comparable. 

 Others reported failure or partial success owing to a variety of causes. 

 A tabulated comparison of results follows: 



Locality, New York 



igo8 



Depauville 



Le Roy 



Frewsburg 



1909 



Castile 



Linden 



Malone 



Depauville 



Madrid 



Mean 



Per cent 



soy beans 



in mixed 



fodder 



6. 

 II . 

 II . 



6 



24 

 26 



12.4 



Per cent 



increase or 



decrease 



of mixed 



fodder 

 over corn 



grown 



alone 



-17- 

 +325 



+ .6 



+8 



+4 

 —6 

 + 29 



21 



+2.5 



Per cent 



apparent 



increase or 



decrease 



in growth 



of corn 



due to 



mixture 



-7-9 

 -26. 1 



o. 



+ •9 

 -10.2 

 -29. 



-5-8 



-10.76 



Inocu- 

 lation 



yes 



no 



yes 



no 



yes 



yes 



no 



no 



The cooperative experiments in 19 10 were similar as to method of 

 planting and cultivation, but 'ur-acre plats were used. All the experi- 

 menters were provided with a commercial culture of root-tubercle bacteria 

 adapted to soy beans for inoculating the seed. Only four complete 



