44 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



and 17.9 bushels with residues, Hmestone and phosphorus. 

 That was the first of two very dry years. 



1 9 14. — Not very different from 191 3, the untreated plot 

 yielded y.6 bushels; manure, 13.2 bushels; manure and limestone, 

 16.3 bushels; manure, limestone and phosphorus, 14. i bushels. 

 The next plot untreated 3delded 8. 5 bushels; with residues, 10.7 

 bushels; with residues and limestone, 14.4; Vv^th residues, lime- 

 stone and phosphorus, 16.4 bushels. 



191 5. — This is the sixth crop. Untreated land made .23.2 

 bushels; with manure, 36.5 bushels; manure and limestone, 

 59.3 bushels. The application of limestone made in 1909 was 

 all that that land had received, but we applied six tons to the 

 acre. Phosphorus gave no increase, the yield being only 55.9 

 bushels. I advise people, if possible, to put four tons 10 the 

 acre, never use less than two tons. After that system is under 

 way, after you have put on your four, five or six tons, then }/ou 

 can put on two tons occasionally every four or five years. If 

 you start with four tons, put on two tons every four years, that 

 will be enough, but, if possible, put on four tons to start with, 

 and five or six will be still better. 



The last year, 191 5, in our residue season, we sov/ some- 

 thing into the corn to plow under, cowpeas. if you get just the 

 right conditions for the cowpeas to make a good growth, they 

 will invariably pull down the yield of corn some. 



Another plot, untreated, yielded 23.2 bushels; residues, 

 25.4; limestone with the residues, 45.1 bushels; and with piios- 

 phorus added, only 45.3 bushels. 



I have the result of the six corn crops : Untreated, 109 

 bushels in six years; with manure, 158 bushels; with manure 

 and limestone, 234 bushels ; almost two and a half times as 

 much as we had from the land alone, and that was the largest 

 yield of corn we have from the field. 



I feel like emphasizing, as I have done .for many vears, 

 that one should be in no particular hurry to apply the pli()<])]ior- 

 us to Southern Illinois soil. Use the limestone first and then 

 grow plenty of legume crops, and build up the soil m organic 

 matter with manure and crop residues. 



I have these results reduced to money values for all the 



