3. Location affected the digestible energy of the forage but not the 

 net energy, while an effect on the digestibility of protein and total digest- 

 ible nutrients was demonstrable only in 1961-1962. 



4. The difference between varieties significantly affected the digest- 

 ible energy and total digestible nutrients. 



5. There was no substantial evidence of important interactions 

 among the factors. 



From the results of the experiment, it is concluded that Commercial 

 timothy grown under 100 lb. per acre at both Northwood and Groveton 

 gave the highest total yield per acre and also the highest net energy. 

 Essex, the late-maturing variety, is entirely unsuitable for the northern 

 locations where the "growing degree days" are shorter. The recommend- 

 ed date of the first cutting at these locations should be the second week 

 of June and the aftermath about two months later. 



* Significant at the 5 per cent level 

 t Significant at the 1 per cent level 



13 



