150 



KXPKRIMENT STATION RECORD. 



clover also stood droughl well and gave good results on moist "round. The results 

 obtained with redtop, side oats grama, and wheal grasses are briefly described, and 

 notes on the work \\ ith less importanl grasses and Leguminous forage crops are given. 



Annual forage crops, including sorghum, millet, cowpeas, small grains, corn, soy 

 bean, rape, Canada field pea, and vetch arc discussed with reference to their value 

 for Nebraska, and the yields obtained in culture tests with some of these crops are 

 given. A list of plants which have been tested but can not be recommended con- 

 cludes the bulletin. 



Pasture, meadow, and forage crops, T. L. Lyon and A. S. Hitchcock {Nebraska 

 Stu. Bui. 84, pp. 66, Jigs. .<).— An account of the cooperative work noted above from 

 another source i E. S. R., 16, p. 148). 



A six-year rotation of crops, II. J. Wheeler and G. E. Adams (Rhode Island 

 Sta. Bui. 99, pp. 81-118, pi. J). — The results obtained with 3 and 4 year rotations 

 have been previously noted (E. S. E., 12, p. 1030). The experiments here discussed 

 were conducted on 6 plats of poor grass land. The succession of crops for the rota- 

 tion was as follows: ( lorn on grass sod, potatoes, winter rye, common red clover with 

 timothy and redtop, grass, grass. A detailed account of the treatment of each of the 

 plats for the term of the rotation is given. The purpose of the experiment was to 

 ascertain if by the use of small quantities of stable manure, supplemented by com- 

 mercial fertilizers, or if by the use of commercial fertilizers alone this exhausted soil 

 could be improved and finally its fertility be maintained at a profit. 



It w r as found early in the experiment that the influence of wood ashes could be 

 profitably duplicated by the use of lime aud potash salts. One of the plats in the 

 absence of lime and wood ashes showed only a trace of timothy and only 4.8 per 

 cent of red clover, while on another plat which received wood ashes timothy con- 

 stituted 22.4 per cent and red clover 37.9 per cent of the herbage. A comparison of 

 the yields during the 2 rotations is given in the following table: 



Comparison of yields in the first and second course of the rotation. 



The crops of hay recorded in the table represent the lirst and last full crops thus 

 far grown in the 2 rotations. The high yield of hay on plat 2 in 1896 is considered 

 to be due to an application of 1,068 lbs. of air-slaked lime per acre in 1894. The top 

 dressing first. employed for grass land in these experiments consisted of 120 lbs. of 

 muriate of potash, 120 lbs. of nitrate of soda, and 300 lbs. of dissolved boneblack 

 or its equivalent of acid phosphate per acre; but beginning with 1901 it was changed 

 to 350 lbs. of nitrate of soda, 200 lbs. of muriate of potash, and 500 lbs. of acid phos- 

 phate per acre. During the second course of the rotation the potato formula was 

 changed to 200 lbs. of nitrate of soda, 275 lbs. of high-grade dried blood, 800 lbs. of 



