R. G. Stapledon and T. J. Jenkin 



45 



Festuca elatior. 4 lbs. per acre on clay only showed negligible 

 results at eleven years. 



Festuca pratensis. 5 lbs. per acre gave only 4-5 % at four years and 

 a negligible quantity at eleven years. 



Festuca duriuscula{'\). 1 and 2 lbs. of the commercial seed sown on 

 clay left no plants to be seen after four years. Festuca rubra although 

 not sown gave 1 % to the herbage on shale and 2 % on clay at four 

 years. 



Table IV. To show 'percentage productiveness of the hay crop for six 

 years in succession at 650' ; on fields sown with a mixture of Lolium 

 perenne, Dactylis glomerata (4 /6s.) and Trifolium pratense. 



* Practically all Crepis virens. 



f Chiefly Ranunculus repens, Bellis perennis and Prunella vulgaris. 



J As t with some Rhinavthus spp. § Chiefly Rhinanthus spp. 



Alopecurus pratensis. 3 lbs. on clay left nothing to be seen at the 

 end of four years. 



Cynosurus cristatus. 1 lb. on shale gave 43 % to the herbage after 

 four years ; 20 % being the highest figure recorded in the fourth year 

 without seeding. 2 lbs. on shale gave 5 % to the first hay crop, when 

 unsown this grass being negligible in the first year. 



Poa trivialis. 1 lb. on clay drift gave after four years 14-8 % to 

 the herbage and when not sown at four years it contributed 1-6%. 



Trifolium repens. 2 lbs. of commercial White or Dutch clover gave 

 8 % to the herbage on shale at four years, this being no more than 

 frequently occurs when this seed is not included in a mixture. On 

 clay 3 lbs. of commercial seed gave 13 % and 2 lbs. 7 % to the 

 herbage at four years; as even the larger percentage is frequently 



