H4 FARM AND SCHOOL PROBLEMS. 



A Perfect Stand. 



PROBLEMS. 



1. If the average rate of planting corn for the whole state, includ- 

 ing both hilled and drilled corn, is 3 kernels to the hill planted three and 

 a half feet each way, this would amount to how many hills and how many 

 stalks per acre if there is a perfect stand? 



2. If there is a perfect stand and the average weight of the ears is 

 one pound, what will be the number of bushels produced per acre if 

 planted three and one-half feet each way, three plants to the hill? 



3. If a farmer plants an acre according to the average Ohio plan 

 and gets a stand of only 65 per cent, of -stalks and a yield of one ear pe 4 

 stalk averaging one pound in weight, what will be his yield per acre? 



4. Find the number of acres of corn planted in your own state ; the 

 average production per acre, the average number of hills per acre planted 

 according to your methods, and calculate the weight of the nubbin repre- 

 senting your corn crop as compared with an ear weighing 1 pound. 



Increasing the Yield. 



PROBLEMS. 



1. If the average yield in a state is 38 bushels per acre, and the 

 average ear is a four-ounce nubbin", how many bushels is the yield per 

 ounce? 



2. If we can add one ounce to the weight per nubbin by good drain- 

 age, and one ounce to each nubbin by selection of better seed, what would 

 be the gain in production where the average is 38 bushels per acre? 



3. If a good system of crop rotation, manuring, fertilizing and 

 good cultivation will each add one ounce to the weight of the 6-ounce 

 nubbin in problem 2, what will be the yield per acre? 



4. If the average production of corn in the corn belt is about 30 

 bushels per acre, what will be the yield per acre, if we can increase the 

 production by improvement at least five per cent.? 



Early plowing. It has been proven by many reliable experi- 

 ments that early plowed ground contains more moisture and 

 soluble nitrogen than late plowed ground. Early spring plowing 

 enables the soil to retain more moisture ; it increases the activity 

 of nitrogen producing bacteria; it is therefore of great advan- 

 tage to plow early if the soils can be found in proper condition 

 for early spring work. 



In many instances it has been found that fall plowing is 

 equally as desirable as early spring plowing. 



