272 AGRICULTURE ON THE PACIFIC SLOPE 



stems and leaves, and are then called forage crops, and 

 fed green, or dried (as hay). Other field crops are 

 grown for their fruits, like apples, plums, and oranges, 

 and such small-fruits as raspberries and strawberries. 

 Others again are grown for their thickened roots or 

 underground stems, such as turnips, beets, and potatoes. 

 These we call root crops. Vegetables are food crops 

 for human use, commonly grown in gardens. 



Garden vegetables are grown by most families for 

 their own use; but the vegetables supplied to cities 

 are mostly grown in fields called truck gardens. In 

 both family gardens and truck gardens the cultivation 

 is much more thorough, and the soil is kept much more 

 fertile than is usually done in farm fields, because the 

 best quality of the crop is required, and truck farmers 

 must make the most of their high-priced land. Gar- 

 den crops are always grown in rows, so that they can 

 be cultivated at all times. Like the field crops, they 

 may be grown for their roots, stems and leaves, fruits, 

 or seeds. Some are grown with great profit for their 

 flowers, and flower culture is a separate branch of 

 horticulture. 



