
whereas drought delays it. In no case should seeding be delayed 
so long that plants do not make sufficient growth to withstand the 
winter. 
Winter rye may be sown with safety from one to three weeks later 
than wheat. It will often live over winter if seeded only in time to 
allow sprouting before freezing weather, but much better results will 
be obtained both as a winter cover and as spring growth for green 
manure, forage or grain by seeding earlier than is ordinarily prac- 
ticed. In tests at Arlington, Virginia, by the USD A excellent re- 
sults were obtained over a period of several years by sowing rye 
at the same time as wheat. 
Hairy vetch is most commonly seeded with rye or wheat and their 
seeding periods are satisfactory for vetch except the very late dates 
possible for rye. Sometimes it is seeded alone for a green manure 
crop and as such should be sown in the latter part of August or as 
soon after September 1 as possible. 
Winter barley should be sown a week to 10 days earlier than 
winter wheat. 
