230 VEGETABLE GROWING PROJECTS 



3. Where and when are flowers produced ? 



4. What are the three types of onion based on methods of propaga- 



tion? 



5. What is an onion " set " ? 



6. What is meant by foreign and domestic types of onions ? 



Project Outline 



1. Why grow onions? 



2. Selecting location. 



3. Choosing varieties. 



4. Obtaining seed and sets. 



5. Starting plants under glass. 



6. Preparing soil. 



7. Planting sets. 



8. Sowing in the field. 



9. Transplanting hotbed-grown plants. 



10. Cultivating. 



11. Weeding. 



12. Thinning. 



13. Irrigating. 



14. Combating insects and diseases. 



15. Marketing bunch onions. 



16. Harvesting mature bulbs. 



17. Storing. 



18. Marketing. 



1. Why grow onions ? — The onion is one of the most important 

 of the vegetables grown for American markets. Millions of 

 bushels are grown annually in great commercial plantations, 

 under the most favorable conditions, and it is a favorite crop 

 among thousands of market gardeners. At least fair success 



