BULB CROP PROJECTS 235 



1. What is meant by the " new onion culture " ? 



W-VG : 390. L : 172. C : 313. 



2. What varieties may be sown to advantage under glass ? 



W-VG : 390. L : 173. 



3. What are the advantages in starting onions under glass ? 



W-VG : 390. L : 173. C : 313. 



4. Describe the details of growing the plants. 



W-VG : 391. C : 314. 



6. How much seed will you need ? 



6. How many sash, mats, and flats will you require ? 



7. What are the disadvantages of this system ? 



6. Preparing soil. — W : 231 . Since the onion does best in cool, 

 moist soils, it is generally desirable to plow or spade the land late 

 in the fall of the year so that there will be no unnecessary delay 

 in starting the crop the following spring. Plow under a liberal 

 amount of manure in the fall. If fall plowing is not feasible, this 

 operation should have the earliest attention in the spring. 



The presence of weeds in large numbers is a trouble which must 

 be guarded against in every possible way. Not a weed should be 

 allowed to ripen seed the preceding year on the plot which is to 

 be used for onions. This will require the most thorough tillage. 

 Nor should we lose sight of the fact that the soil should be very 

 fine and moist when the time arrives for planting, which may re- 

 quire the repeated use of the harrow, plank drag, or other soil 

 pulverizing and moisture conserving tools. 



The onion requires the highest fertility. Large bulbs cannot 

 be grown without an abundance of available plant food and humus 



