236 GREENHOUSE MANAGEMENT. 



of nitrate of soda are used to one hundred square feet of 

 border, it will have an excellent effect. In addition to 

 this application, an inch or so of finely rotted manure 

 should be spread over the border, both to furnish food 

 and to act as a mulch to prevent evaporation from 

 the surface. 



SELECTING THE PLANTS. 



The best plants are grown from eye cuttings, and 

 should be planted when one year old. These will make 

 a stronger start than layers from old plants, or than 

 plants two or three years old. In selecting the varieties, 

 the method in which they are to be grown should be 

 considered. The first choice will always be Black Ham- 

 burg, as this is easily grown and thrives in either a hot 

 or cold vinery. As a rule, fully half of the vines should 

 be of that variety, and for commercial purposes it will 

 be as well, at least so far as the yield is concerned, if 

 the other half are also of that sort. 



For a cool house, 20x20 feet, the following varieties, 

 in numbers as indicated by the figures in parentheses, 

 could be used : 



Black Hamburg (6), medium. (Fig. 82.) 

 Royal Muscadine (2), white, early. 

 Buckland Sweetwater (2), white, medium. 

 Alicante (1), black, late. 

 Rose Chasselas (1), red, early. 

 White Frontignan (1), white, medium. 

 Golden Hamburg (1), greenish yellow, medium. 

 Muscat of Alexandria (1), amber, late. 

 Lady Downer (1), black, late. 



A hot vinery of the same size could be filled with : 



Black Hamburg (5), black, medium. 

 Royal Muscadine (1), white, early. 

 Muscat Hamburg (1), black, medium. 

 Syrian (1), white, late. 

 Muscat of Alexandria (1), amber, late. 

 Lady Downer (1) black, late. 

 Rose Chasselas (1), red, ecirly. 

 B&rbarossa (1), black, late, large. 



