Table 1 



Effect of Chem-Frost* on number of blossoms killed after 

 exposure to several freezing temperatures, 1972. 



*************** 



SUGGESTIONS FOR FERTILIZATION OF PEACH TREES IN 1974 



William J. Lord 

 Department of Plant and Soil Sciences 



Tree growth is the best 

 fulfills the needs of peach t 

 ing factor. Since fruit buds 

 shoot growth, it is essential 

 ally by the use of a nitrogen 

 should make about 18 inches o 

 inches are sufficient for mat 

 amounts may result in poor fr 

 The kind of N to use should b 

 N and/or availability of fert 

 plete fertilizer" has been mo 

 N needs. 



guide to how yo 



rees, if soil m 



of the peach a 



to produce ade 



(N) fertilizer 



f new terminal 



ure trees. Gro 



uit color and e 



e chosen on the 



ilizers. Ammon 



St commonly use 



ur fertilizer pr 

 oisture is not a 

 re formed along 

 quate new growth 

 Young peach t 

 growth annually; 

 wth in excess of 

 xcessive cold in 

 basis of cost o 

 ium nitrate or a 

 d in the past to 



ogram 

 limit- 



the new 

 annu- 



rees 

 12-15 

 these 



jury. 



f actual 

 "com- 

 supply 



Potassium (K) is the only nutrient, other than N, that is fre- 

 quently deficient in Massachusetts peach orchards. Therefore, the 

 recommendations given below are guides for fulfilling the N and K 

 needs for peach trees. The K may be applied either in the spring 



