Progress report . lover hayav. 15 yr. No fertilizer (check) 500 1b 1,000 1b 1,500 1b. 2,000 1b (H) lb 75-6131-7 183-8220-7 240-1241-8 bu. 53 155-853-657-364-4701 tons1091 75t-922-022-OS2-05 Fertilizer at 2,000 lb. per acre is upper limit for potatoes. The balance bel w eenthe cost of the fertilizer and the value of the increased yields, will determine thepoini which an increase in the application of fertilizer to potatoes on a clayLoam soil will be profitable, but i hese results show i ha1 I here is a definite limit at2,000 pounds. 28 In the rotation where 2-12-6 fertilizer is applied f
Progress report . lover hayav. 15 yr. No fertilizer (check) 500 1b 1,000 1b 1,500 1b. 2,000 1b (H) lb 75-6131-7 183-8220-7 240-1241-8 bu. 53 155-853-657-364-4701 tons1091 75t-922-022-OS2-05 Fertilizer at 2,000 lb. per acre is upper limit for potatoes. The balance bel w eenthe cost of the fertilizer and the value of the increased yields, will determine thepoini which an increase in the application of fertilizer to potatoes on a clayLoam soil will be profitable, but i hese results show i ha1 I here is a definite limit at2,000 pounds. 28 In the rotation where 2-12-6 fertilizer is applied for swedes, at rates of 500,750, 1,000, and 1,500 pounds per acre, yields show a trend similar to those inTable 19. At current prices the 750-pound rate would have shown a profit, butthe larger applications would not. With corn, during the past five years, it is doubtful if applications of morethan 500 pounds of a 5-10-10 fertilizer would have shown any profit, on the basisof the yields obtained in this I [i re 6, Manure and fertilizer combined give besl results with : No manure or fertilizer average yield 17 years 122 bushels. Centre:t I in fertilizer al 1,000 pounds per acre average yield 17 years 2!);{ : 4-8 H> fertilizer ••>n<l id tons manure per acre, 354 bushels per acre average j leld 17 years, 29 Jfc:
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherottaw, bookyear1921
