FIELD CROPS. 



109 



345. If on the average one out of five grains fails to 

 germinate, what is the yield per acre? What is the loss 

 per acre at 50 cents per bushel? 



346. If corn shrinks 10 per cent in weight between 

 harvest time and the following summer, what is the loss 

 when corn produces 40 bushels per acre, and is worth 50 

 cents per bushel ? 



347. What is this loss for the whole country, provided 

 10 per cent of the corn crop is carried over until the next 

 summer ? 



348. If it shrinks 12 per cent, what is the annual loss ? 



349. Fifty-eight samples of seed corn were tested for 



SEEDING CORN LAND TO WHEAT. 



This custom enables two crops to be grown with one plowing, a saving of time 

 and labor. Corn land is also fairly good preparation for wheat. 



vitality. Of that selected from corn in shock, 78 grains out 

 of each 100 germinated; from the crib, 87 grains; of 

 seed selected at harvest time and carefully stored, 94 

 grains germinated. What was the percentage of germina- 

 tion for each method ? 



350. What was the difference in per cent of germina- 

 tion between w-ell-stored seed corn and that from shocks ? 

 From crib? 



