398 FIELD CROPS 



Kale is used quite extensively as a fall and winter soiling 

 crop for dairy cows and other stock in Oregon and Washing- 

 ton west of the Cascade Range. As the winters are mild, 

 it may be cut at any time from October to April. 



LABORATORY AND FIELD EXERCISES 



L Collect seeds of garden beets, sugar beets and mangels. De- 

 scribe the differences definitely. Sprout some of these seeds also and 

 compare character and number of sprouts. What bearing would the 

 result of this observation have on planting? 



2. Compare the flesh, color, size, and shape of these roots. Dis- 

 tinguish the tops carefully so as to be able to recognize them readily. 



REFERENCES 



Cabbage, Cauliflower, and Allied Vegetables, Allen. 



Cyclopedia of American Agriculture, Vol. II, Bailey. 



Farm Crops, Burkett. 



Forage and Fiber Crops in America, Hunt. 



Field Crop Production, Livingston. 



Productive Farm Crops, Montgomery. 



Forage Crops and Their Culture, Piper. 



Forage Crops, Shaw. 



Soiling Crops and the Silo, Shaw. 



Forage Crops, Voorhees. 



