GREEN FORAGE AND HAY CROPS 97 



Succession of Soiling Crops. The succession of soiling crops 

 to be grown, and the details in carrying out either full or partial 

 soiling, will vary greatly according to climatic conditions and the 

 crops adapted to each locality. An extensive literature has been 

 published by our experiment stations and the United States De- 

 partment of Agriculture relating to this system. The following 

 references include the more important experiment station publica- 

 tions relating to soiling conditions in the various States : 



Connecticut (Storrs) Bulletin 9; Reports, 1891, 1895. 



Iowa Bulletins 15, 19, 23, 27; Circular 12. 



Kansas Bulletin 125. 



Maryland Bulletin 98. 



Massachusetts Reports, 1887-1891, 1893; Bulletins 72 and 133. 



Michigan Bulletin 223. 



Mississippi Bulletin 95. 



New Jersey Bulletin 158; Report, 1902. 



Pennsylvania Keports, 1889. 1904-1905 ; Bulletins C5, 75, 109. 



South Dakota Bulletin 81. 



Utah Report, 1892; Bulletin 15. 



Vermont Bulletin 158. 



Wisconsin Report, 1885; Bulletins 103, 235. 



Ontario (Guelph) Report. 1890. 



FIG. 13. The relative expense of producing and feeding soiling crops is considerably greater 

 than in the case 01 silage. (Wisconsin Station.) 



Summer Silage. It has been shown that the soiling system 

 calls for considerable extra labor and is attended with special diffi- 

 culties during rainy and stormy weather; it may, moreover, break 

 down more or less in seasons of extreme drought. For these and 



