WORK OF TRUCKEE-CARSON EXPERIMENT FARM IN 1912. 19 



not grow well. It can be grown successfully on soil containing more 

 black alkali than is tolerated by alfalfa. It has been found that if 

 the crop is cut before blossoming, live stock soon learn to eat it. It 

 has been observed that some horses and cattle eat it as readily as they 

 do alfalfa, while it is apparently disliked at first by others. 



It is not recommended that this crop be grown on land that will 

 grow alfalfa successfully, but it may frequently be used on land 

 which for some reason will not produce other crops. The sweet 

 clover may be used as a forage crop to feed live stock or it may be 

 plowed under Avlien several feet high to help bring the soil into 

 better condition. 



Fig. 3. — Row tests of lUfalfa varieties at tlie ■rrucljee-Carson Experiment Farm in 1JJ12. 

 Twelve varieties were tested in tliis manner. 



When sweet clover comes up in an alfalfa field it can be killed out 

 the second year, provided the crop is cut during the two years early 

 enough to prevent the clover from producing seed. 



ALFALFA. 



In April, 1911, 12 varieties of alfalfa were seeded in rows 30 

 inches apart. (Fig. 3.) The row^s were from 320 to 330 feet in 

 length. The entire series w^as planted in duplicate. The seed of 

 these varieties was furnished by the Office of Forage-Crop Investi- 

 gations. The results obtained in 1912 are presented in Table IV. 



[Cir. 121'] 



