CAMPBELL'S SOIL CULTURE MANUAL 



185 



PROPER DEPTHS OF SEEDING 



Very much could be said on the subject of the proper 

 depths of seeding, for the reason that when you make a 

 statement as to a certain depth it must be followed with 

 many ifs, pros, and cons; therefore we bave provided cut 

 No. 19 as a base of argument. In this illustration, how- 

 ever, we assume that we have the ideal soil condition. 



At one end may be seen the seed too shallow. Under 

 this condition germination is slower and the plant is more 



A i / / /'//'! 



ABC 



Cut No. 19. Effect of Different Depths of Seeding, (a) Too Shallow 

 Seeding, (b) Proper Depth of Seeding, (c) Too Deep Seeding. 



quickly affected by excessive heat. If the entire soil was 

 fitted in the more common loose way this seed would have 

 a hard time to exist in case of dry weather. 



In the center we have the more ideal condition. Here 

 germination is more rapid, a perfect root system, and prac- 

 tically no loss of time, while at the other end the seed was 

 put too deep. Germination being somewhat slower, a 

 longer period is required for the first leaf to reach the sun- 



