CULTURAL PRINCIPLES HARVEST 17 



haps the average between two and one-half and 

 three. Zavitz and Lochhead 2 state that some varie- 

 ties of peas, like New Canadian Beauty, are double 

 in size those of other sorts, as Common Globe vine. 

 Hence in seeding it was found necessary to vary 



SPECIAL PEA VINE HARVESTER. 



the amount sown from two to three and one-half 

 bushels to the acre. The time of maturity has 

 varied for 26 varieties, from 94 to 101 days, and the 

 experiments in length of vines from 19 to 52 inches. 

 Depth of Planting. It is generally recommended 

 to plant deep, three to four inches. An exception 

 may be for early sorts for gardening purposes. Cor- 

 bett 3 reports a test made of planting peas at depths 



2 Ont. Agri. Col., Bui. 126. 



3 W. Va. Exper. Sta., Bui. 49. 



