FERTILIZERS AND MANURES FOR THE ORCHARD 197 



Table LIX 



results from fertilizing tilled and mulched orchards — 

 southern ohio. (adapted from ballou and lewis) 



The more complete data are given in the following table: 



Table LX 

 effect of fertilization on tilled and grass-mulch orchard — ohio. 



(after BALLOU AND LEWIS) 



Row 

 No. 



Cultivated plot 



Nitrate of soda, 5 lbs. on tree circle 



Nitrate of soda, 5 lbs. on tree square 



No fertilizer 



Nitrate of soda, 5 lbs. ; acid phosphate, 5 lbs. on tree 

 circle 



Nitrate of soda, 5 lbs. ; acid phosphate, 5 lbs. on tree 

 square 



No fertilizer 



Nitrate of soda, 5 lbs. ; acid phosphate, 5 lbs. ; muri- 

 ate of potash, 5 lbs. on tree circle 



Nitrate of soda, 5 lbs. ; acid phosphate, 5 lbs. ; muri- 

 ate of potash, 5 lbs. on tree square 



Totals for cultivated plot 



5-year 



average, 



1914-18 



Lbs. 

 3,220.1 

 3,017.2 

 2,270.8 



3,081.6 



2,950.6 

 2,308.0 



2,935.7 



3,407.5 



23,191.3 



