306 VEGETABLE GARDENING 



86. What kind of soil is necessary for a good celery crop? 



87. How should celery be planted to obtain an early crop? 



88. How should celery be planted to obtain a late crop? 



89. How is celery cultivated? 



90. How are the plants transplanted? 



91. How are celery and onions planted out together? 



92. What is meant by "handling" celery? 



93. What is the process of blanching or banking? 



94. How is celery blanched with boards, and why not as profit- 

 able as banking with soil? 



95. What is a convenient way of planting celery for easy culti- 

 vation and weeding? 



96. When and how should celery be dug? 



97. Discuss a good method of storing celery. 



98. How long does it take celery to blanch in the field and in 

 the cellar? 



99. How is celery seed raised? 



100. What diseases are most common in affecting celery? 



101. How are they treated? 



102. Name five good varieties of celery. 



103. What is celeriac, and how is it cultivated? 



104. To what family does the sweet potato belong? 



105. How is the sweet potato cultivated? 



106. What plants belong to the potato family and what are their 

 general characteristics? 



107. What colors of skin and flesh, and what forms do we find 

 in potatoes? 



108. How is the potato propagated? 



109. When and how was the modern potato originated? 



110. What kind of soil is best for potatoes? 



111. How should such land be manured? 



112. What are "sets," and what are the qualities of a good "set"? 



113. How are potatoes planted, and what kind should be selected 

 for seed? 



114. How are potatoes treated for early planting? 



115. How is the main crop of potatoes cultivated? 



116. Discuss the digging and storing of potatoes. 



117. What is the average per acre of marketable potatoes in the 

 Northern states? What are the biggest yields known? 



