LABORATORY MANUAL IN FIELD CROPS 41 



PRACTICUM NO. 32 



Object. An Examination of Commercial Alfalfa Seed. 

 Materials. Samples of commercial alfalfa seed. 



Method. Follow the same method here as given for the 

 examination of commercial clover seed in Practicum No. 31. 



STUDIES 



If sown at the rate of 18 pounds per acre, calculate the num- 

 ber of weed seeds sown to the acre. 



Report on Farmers' Bulletins Nos. 339, 428. 



1. Where in the United States is most of the alfalfa seed 

 produced ? 



2. Are there any imports ? If so, from where ? 



3. What are some of the common impurities? 



4. What is the color of good seed ? 



5. What is used to adulterate alfalfa seed ? 



REFERENCES 

 Ohio Bulletin No. 175. 

 Livingston's Field Crop Production, p. 287. 



