Food for 

 Plants 



230 



PLAN FOR TOP-DRESSING EXPERIMENTS. 



The above simple plan for Top-Dressing Experiments 

 has been in satisfactory use in Europe for several years. The 

 plots may be of any size from a square 20 feet x 20 feet, 

 and upwards. The squares marked O are not fertilized, and 

 serve as check plots. The Nitrate application recommended 

 for a square 20 feet x 20 feet is one pound, which is equiv- 

 alent to one hundred pounds to the acre. For further 

 details, see General Directions for Staple Crops. 



