ANNUAL REPORT, 1930 



271 



without nitrogen and No. 8 which received 80.9 kilograms of nitrogen per 

 acre in sulfate of ammonia. 



It is planned to continue the investigation. 



LEGU3IIXOUS CROPS GROWN IN ROTATION 

 (Kilograms of Dry Matter and Nitrogen removed per Acre) 



Without Nitrogen With Nitrogen 



Year Crop 



Dry Matter Nitrogen Dry Matter Nitrogen 



1924 Clover 1866 49.8 1792 46.5 



1925 Corn 1766 29.8 1816 31.3 



1926 Soy Beans 1596 39.9 1860 50.0 



1927 Corn 1164 18.5 1310 23.0 



1928 Clover and Weeds 1334 18.9 1340 17.1 



1929 Clover 1852 41.9 1714 37.9 



1930 Millet 2575 32.7 3011 43.2 



Total 12153 231.5 12843 249.0 



NON-LEGUJriNOUS CROPS GROWN CONTlNfOUSLY 



1924 Grasses 496 4.6 1393 10.1 



1925 Corn 1010 13.1 1280 18.5 



1926 Millet 2126 14.0 4286 36.5 



1927 Corn 1294 21.5 1258 22.8 



1928 Grasses and Weeds 1478 13.2 1846 17.9 



1929 Grasses 617 6.0 1055 10.8 



1930 Millet 3066 29.3 2984 40.6 



Total 10087 101.7 14102 157.2 



Chemical Study of Cranberries. (F. W. Morse). The work of the last 

 four years has been issued in Bulletin No. 26-5, "A Chemical Study of 

 Cranberries". 



Milk Substitutes in the Growing of Young Calves. (J. B. Lindsey and 

 J. G. Archibald). For a part of the year 1929 and during 1930 studies 

 have been in progress of a system based largely upon dry feeding, no 

 liquid except water being fed after the first few weeks. 



The first group of nine high-grade Holstein calves, five bulls and four 

 heifers, was fed on the so-called New Jersey ration consisting of whole 

 milk for three weeks, decreasing tlie same during the fourth week so that 

 at the beginning of the fifth week the calves were receiving only dry feed, 

 consisting of alfalfa for roughage and a grain mixture containing some 

 12% per cent of soluble blood flour. The calves did fairly well and aver- 

 aged 231 pounds (200-287) in weight at four months of age. making an 

 average daily gain of 1.15 pounds. 



A second group of five calves, three bulls and two heifers, was fed in 

 the same way, except that rowen was fed in place of alfalfa. They 

 averaged 228 pounds (210-238) in weight at four months of age, with an 

 average daily gain of 1.12 pounds. 



A third test is now in progress in which white fish meal was substituted 

 for the blood flour. The calves did not take to the grain ration as readily 

 because of the odor of the fish meal. Three records have been completed 

 and two others are in progress. The three completed records show an 

 average weight of 227 pounds at four months of age and an average daily 

 gain of 1.02 pounds. 



While it is possible to grow Holstein calves by the dry method of feed- 

 ing, it is not to be commended. Most of the calves appeared thin, ""pot 

 bellied," and not in as satisfactory condition as those receiving a portion 



