8 



Among these special hog crops attention is here di- 

 rected to Dwarf Essex rape, because it is so little known, 

 so palatable, sO' nutritions and because it can be so 

 effectively used at once to relieve, to some extent, the 

 present scarcity of corn. For the successful growth of 

 rape the land must be as rich and as highly fertilized 

 as foir turnips, and preparation, sowing and cultiva- 

 tion are the same as with that crop, except that rape 

 is not thinned. Sow 3 to 5 pounds of seed per acre in 

 narrow drills between September 20 and October 20. 

 Seed are cheap, 10 to 12 cents i>er pound, and they are 

 sold l>y all seedsmen. We have also sown rape in 

 March, getting hog pasturage in May and June. 



In the summary the present local price of hogs, 5 cents 

 per pound, has been used in estimating the value of one 

 acre of each crop when converted into pork. However, 

 in the body of the bulletin use has been made of the 

 local price prevailing at the time when each experiment 

 was made. 



We can estimate the increase in live weight due to 

 one acre of some special crop only by calculating the 

 probable approximate amount of growth due to the 

 grain fed. The amount of gi*ain required, when fed 

 alone, to prodtice one pound of growth varies of course 

 with many conditions, but the average of many experi- 

 ments is not very far from five pounds. 



In assuming this figure we have sacrificed strict accu- 

 racy to uniformity and clear presentation. Those who 

 prefer to use a different factor will find it possible from 

 the date in the body of this bulletin to calculate the net 

 gains per acre of hog crop, whatever factor they select. 



