ioSept., 1908.] Potato Experimental Fields, 1907-8. 



559 



POTATO EXPERIMENTAL FIELDS, 1907-8. 



George Seymour , Potato Expert. 



The experimental work in connexion with the potato fields 1907-8 ma.y 

 be stated under the following heads : — 



1. Variety Tksts. 



(a) To ascertain value of \arieties in different localities. 

 (6) Change of seed. Seed grown in different soils, 

 (f) Immature r. Ripe Seed. 



[d) Breeding for Type. 



(e) Sporting of diff'erent varieties. 



2. Manurial Tests. 



(a) Value of chemical manixres when used alone. 



(b) Value of cliemical manures wlien applied in conjunction with farm yard 



manure. 



3. Value of Si'bsoiling. 



In all II plots were planted. Artificial manure alone was applied 

 on the following plots : — Cheltenham, Allansford, Kilmore, Drouin, 

 Neerim, Trafalgar, Trentham, Kinglake and Colac. Artificial and farm- 

 yard manure in combination were applied to two fields : — Romsey and 

 Newlyn. 



Artificial Manure Plot. 



K Cliains 



The weijjhts of manures staled are " per acre." 



The Cheltenham plot was of the same area and carried four sections 

 as shown above, the manure dressings being A — 3 ewt. bonedust and super, 

 mixed ; B — 6 ewt. bonedu.st and super. ; C — check section, no manure ; 

 D — 3 ewt. bonedust and super, and i ewt. potash sulphate ; E — 3 ewt. 

 bonedust and super, i ewt. potash sulphate and i ewt. sulphate ammonia. 



The weisfhts of manures stated are " per acre.' 



