SPECIAL CROPS 143 



upon cultivation. The soil should be frequently stirred, 

 and it must be kept absolutely free from weeds. 



When Ready for Harvest. When the tops are dead 

 and dry the crop is ready for harvest. The onions 

 should be pulled, carefully cleaned, dried in the sun for 

 a few hours and stored away in a cool, dry place until 

 ready for market. If they are placed in bushel boxes 

 with lath sides they will keep in good condition. 



Best Varieties of Onions. Yellow Danvers, Early 

 Reds, Red Wethersfields, Yellow Globe and Prizetak- 

 ers are the standard varieties. The first named is the 

 heaviest yielder, an onion of excellent flavor and sells 

 well on the market. 



Free Bulletins, U. S. Dept. of Agriculture. 

 Fanners' Bulletins. 



No. 35. Potato Culture. 



No. 39. Onion Culture. 



No. 52. The Sugar Beet. 



No. 60. Methods of Curing Tobacco. 



No. 82. The Culture of Tobacco. 



No. 83. Tobacco Soils. 



No. 120. The Principal Insect Affecting the Tobacco Plant. 



No. 129. Sweet Potatoes. 



Problems. 



1. How many tobacco plants will be required to 

 set an acre in rows three feet apart, the plants two 

 feet apart in the row? 



2. Tobacco is usually strung on laths to be cured. 

 With twelve stalks to the lath, how many laths will be 

 needed per acre? 



