168 



Trials of Potatoes, 1921. 



[May, 



Variety. 



Sprouted. 



Unsprouted. 





tons. cwt. 



tons. 



cwt. 



it Sussex — 











Arran Rose 



4 



2 



9 



• • . & 



Q 



jj ■•• ••• 



8 



19 



7 



A 

 U 



Ashleaf 



5 



4 



Q 



•J 

 O 



»> , ••• 



10 



17 



Q 

 





l-'cllglll JIjHLIj ... ... 



3 



7 



1 



Q 

 O 



•) • 



9 



15 



5 



19 



Snowdrop ... 



4 



( 



2 



7 





11 



1 



6 



18 



Epicure 



4 



9 



2 



3 



}) 



10 



9 



7 



10 



Ninetyfold 



3 



16 



2 



6 



>j 



9 



15 



6 



2 



Average rate of yield per acre 











at each centre ... 



5 



16 



4 







The results obtained confirm 



the results 



of previous 



i experi- 



merits, but there is still the greatest need to emphasise these facts 

 and to impress them on the notice of all growers, both com- 

 mercial and domestic. 



Trials with Second Early and Late Varieties. — The main 



objects of these trials were to demonstrate : — 



1. The comparative value of the immune varieties for each 

 district. 



2. Approved methods of potato culture. 



The second early and main crop varieties chosen for demon- 

 stration were : — Ally, Arran Comrade, Early Market, Great 

 Scot, King George, Kerr's Pink, Lochar, Majestic, and Tinwald 

 Perfection. 



Supply of Seed. — In order that the results obtained in the 

 different counties should be capable of comparison it was decided 

 to obtain ail the seed used in these demonstrations from the 

 same source. The Ministry accordingly made arrangements 

 with a Scottish seed merchant to reserve a quantity of seed 

 potatoes of the trial varieties, for planting on the demonstration 

 plots. 



Quantity of Seed. — Committees were asked to arrange for 

 28 lb. of each variety to be planted on land which had been pre- 

 pared according to the instructions given below. 



Manures. — The land was to receive a dressing of farmyard 

 manure at the rate of 15-20 tons per acre, applied in the drills 

 at the time of planting. Artificial manures were also to be 

 applied, on dates to be recorded, in quantities somewhat as 

 follows per acre :— Superphosphate (26 per cent, sol.) 4| cwt., 

 sulphate of ammonia 1 cwt., sulphate of potash 1 cwt. 



