COLE CROP PROJECTS 



101 



9. Estimate the requirements of lime, fertilizer, and manure for 

 your cabbage project. 



10. What are the various sources of lime, phosphorus, nitrogen, and 



potassium? 



11. What are the best directions for mixing a suitable fertilizer for 



cabbage f 



Fig. 28. — Transplanting cabbage plants in the field by the use of a dibber. 



15. Planting in the garden. — In most sections of the North, 

 strong, well-hardened early plants may be set in the garden or field 

 as soon as the ground can be prepared. As a rule, we can begin 

 transplanting out of doors about April 15, and earher in some 

 sections. Late cabbage is ordinarUy transplanted between June 

 15 and July 10. Experience has taught commercial growers 

 that comparatively early planting, say from the fifteenth to twen- 



