1 86 SCIENCE OF HOME AND COMMUNITY 



following groups : i . those whose root we eat, such as beet, 

 carrot, parsnip, radish, and turnip ; 2. those whose stems we 

 eat, such as potato and onion ; 3. those whose leaves we eat, 

 such as cabbage, celery, lettuce, parsley, and spinach ; 4, 

 those whose seeds we eat, such as peas, beans, and corn; 

 5. those whose fruit we eat, such as cucumbers, melons, 

 pumpkins, squash, and tomato ; 6. those whose flowers are 

 eaten, such as the cauliflower. 



Double cropping. Succession cropping. In order to raise 

 the most on a certain area, the ground should be kept in use 

 all the time. Raising two crops on the same area is called 

 double cropping. There are two kinds of double cropping, 

 succession cropping and companion cropping. In succession 

 cropping, as soon as one kind of vegetable has matured 

 and been harvested, something else is planted in the same 

 place. For example, radishes and lettuce may be followed 

 by late corn ; early beets by cauliflower or eggplant ; 

 peas by summer lettuce ; early corn by cabbage plants, or 

 spinach. 



Companion cropping. In companion cropping the two 

 crops occupy the ground at the same time, one being planted 

 between the rows of the other. Those plants must be selected 

 which mature at different parts of the season, one early and 

 the other late, so that the early crop may be gathered and 

 the plants pulled from the soil before they shade the second 

 crop. Thus corn or tomato plants may be planted between 

 rows of early peas, and when the peas have been picked, the 

 vines are pulled from the soil to give room for the other 

 crops. Other examples of companion cropping are radishes 

 between the rows of beets or carrots, the radishes maturing 

 before the beets or carrots need the room ; squashes, pump- 

 kins, or climbing beans planted in the hills of corn ; early 

 onions with cabbage. Giving attention to double crop- 

 ping is one of the secrets of success in raising large crops of 

 produce on small areas. 



