198 PASTORAL AND AGRICULTURAL BOTANY 



second crop of hay, or seed late in the summer. Two crops of hay and 

 one of seed may be obtained in the south during the second season. Sweet 

 clover plants are raked into windrows just before the leaves become dry 



FIG. 84. Canada pea (Pisum sativum). (After Mairs, T. J.: Some Soiling Crops 

 for Pennsylvania. Bull. 109, Pennsylvania State College Agricultural Experiment 

 .Station, 1911, p. 5.) 



enough to shake off the stems. After a day in the windrows, it is shocked 

 and cured. 



Nutritive Valve. Sweet clover may be used as a soiling plant, or as a 

 pasture plant and is a useful soil renovator. It is palatable and nutri- 



