June, 1940] Farm Management in Colebrook 37 



been in operation a few years the yields, based on experience of 

 farmers, would be approximately : 



A. Potatoes 5.5 acres @ 300 = 1650 bushels 



B. Oats 5.5 acres @ 50 = 275 bushels + 8 tons straw 



C. Clover 5.5 acres @ 2.5 = 13.7 tons 



D. Hay 5.5 acres @ 2 = 11 tons 



The remaining good tillage land would be divided into six fields 

 of approximately equal size and one of these would be reseeded 

 each year. Lime and manure and superphosphate would be applied 

 in preparation for reseeding. The detail requirements of lime and 

 fertilizer to carry the soil at the most profitable level of yields when 

 the fields have been operated under this system for several years 

 would depend on prices of fertilizers, the price of milk, and other 

 factors. In the light of experiments conducted by the agronomy 

 department, the approximate fertilization program could be worked 

 out. In general, to maintain the capacity of the soil would probably 

 require a ton of lime, 300 pounds of superphosphate, and 20 tons of 

 manure per acre once in each rotation. The production from these 

 plots should approximate : 



a total of 270 bushels of oats. 8 tons of straw, and 51.2 tons of hay. 

 Combining both cropping systems there would be a total of 16 tons 

 of straw, 545 bushels of oats, and 76 tons of hay. This is sufficient 

 roughage for the 18 cows and 10 head of young stock and two horses. 

 The plan would require the plowing and fitting of about 16 acres 

 of land each year. Approximately five tons of lime, 3000 pounds of 

 acid phosphate, 200 pounds of grass seed, and 20 bushel of oats would 

 be required in seeding down. The potato crop would require five 

 tons of commercial potato fertilizer and 80 bushels of potato seed. 

 The annual out-of-pocket cost of lime, fertilizer, and seed would ap- 

 proximate : 



5 tons of lime $ 30.00 



3000 pounds acid phosphate 30.00 



200 pounds seed 30.00 



5 tons potato fertilizer 175.00 



80 bushels seed 75.00 



Total $340.00 



To maintain adequate pasturage for cows and young stock, ap- 

 proximately five additional tons of lime. 1500 pounds of superphos- 

 phate, and 1000 pounds of potash will be required each year. This 

 will require an annual expenditure of about $50. Not including re- 

 quirements of the potato crops, $140 will be needed for fertilizer, 

 lime, and seed. Approximately one-fourth of this could be supplied 

 In- the AAA program. This is of course an aggressive management 

 program using the available labor and purchased supplies of fertil- 



