62 VEGETABLE GARDENING 



on a large scale, some special apparatus is needed, and 

 there are many kinds offered by manufacturers. 



In buying machinery it is well to regard with suspicion 

 those that are very complicated, as the simplest is generally 

 the most durable in the end. 



REVIEW QUESTIONS 



1. What three things are accomplished by cultivation? 



2. Why is it important that weeds should be prevented from 

 growing in the garden? What are the best means of eradication? 



3. What are the advantages and disadvantages of fall and 

 spring plowing? 



4. What is meant by sub-soil plowing, and when does it give 

 best results? 



5. What is the object of ridging the land, and when is it prac- 

 ticable? 



6. How does cultivation develop plant food? 



7. What tools and machines are necessary for successful garden- 

 ing, and for what purpose is each one used? 



