238 VEGETABLE GROWING PROJECTS 



wanted for bunching onions) in rows a foot apart. The rows 

 should be perfectly straight, a condition which may be secured by 

 the use of a line. The sets should barely be covered, unless the 

 soil is very light, in which case they may be planted somewhat 

 deeper. From 20 to 25 bushels of sets are required to the acre 

 and more if sets are large. They should be planted just as early 

 in the spring as the ground can be prepared. 



1. When is it an advantage to use sets instead of seed ? 



W-VG:392. L: 174-175. 



2. How early in the spring should sets be planted ? W-VG : 394. 



3. What are the proper planting distances for sets ? 



W-VG : 394. L : 176. 



4. How many bushels are required to the acre ? W-VG : 394. 



5. Are sets ever planted in the fall? If so, what kind and what 



method is followed ? W-VG : 393. 



8. Sowing in the field. — In the great onion-growing districts 

 practically all the bulbs are grown from seed sown in the open 

 ground. Good results may be expected in muck soils and in sandy 

 loams or wherever conditions are favorable for growing this crop. 

 The yellow American varieties are most largely employed for 

 field seeding. It is customary to start the seed drills as early in 

 the spring as the ground can be prepared. The rows are generally 

 twelve to fourteen inches apart and it is customary to use about 

 four and one-half pounds of seed to the acre. There should be 

 eight to twelve plants per foot of row. If too much seed is 

 used, it will be necessary to thin the plants. This is always 

 a slow, tedious operation, so that it is important to know the 

 viability of the seed and not sow more than is necessary. 



