Selected Bibliography 321 



Selected Bibli()graj)liy 



1. Alhrcclil, \\'. A., Artificial manure production on the farm, Univ. Missouri 

 Agr. Expt. Sto. Bull. 258, 1927. 



2. Albrccht, W. A., Methods of incorporating organic matter with the soil in 

 relation to nitrogen accumulations, Univ. Missouri Agr. Expt. Sta. Bull. 249, 

 1936. 



3. Barnettc, R. M., Jones, H. W., and Hester, J. B., Lysimetcr studies with the 

 decomposition of summer c()\er crops, Univ. Florida Agr. Expt. Sta. Bull. 

 327, 1938. 



4. Daji, J. A., The decomposition of green manures in soil, /. Agr. Sci., 24:15- 

 27, 1934. 



5. Dunn, L. E., and Wheeting, L. C, Utilization of barnyard manure for Wash- 

 ington soils. Wash. State Coll. Agr. Expt. Sta. Bull. 395, 1941. 



6. Humfeld, H., and Smith, N. R., The decomposition of vetch green manure 

 in relation to the surrounding soil, J. Agr. Research, 44:113, 1932. 



7. Jenkins, S. H., Organic Manures, Imperial Bureau of Soil Science, Harpen- 

 den, England, 1935. 



8. Jensen, H. L., The microbiology of farmyard manure decomposition in the 

 soil. I. Changes in the microflora and their relation to nitrification, J. Agr. 

 Sci., 21:38-80, 1931. 



9. Leukel, W. A., Barnette, R. M., and Hester, J. B., Composition and nitrifi- 

 cation studies on Crotalaria striata. Soil Sci., 28:347-371, 1929. 



10. Mooers, C. A., Effects of hming and green manuring on crop yields and on 

 soil supplies of nitrogen and humus, Univ. Tenn. Agr. Expt. Sta. Bull. 135, 

 1926. 



11. Piper, C. v.. Green manuring, U. S. Dept. Agr. Farmers' Bull. 1250, 1922. 



12. Salter, R. M., and SchoUenberger, C. J., Farm manure, Ohio Agr. Expt. Sta. 

 Bull. 605, 1939. 



13. Smith, F. B., Stevenson, W. H., and Brown, P. E., The production of arti- 

 ficial farm manures, Iowa State Coll. Agr. Bull. 126, 1930. 



14. Smith, F. B., and Thornton, G. D., Production of artificial manure, Univ. 

 Florida Agr. Expt. Sta. Bull. 415, 1945. 



15. Sprague, H. B., The \alue of winter green manure crops, A''. J. Agr. Expt. 

 Sta. Bull. 609, 1936. 



16. Thome, C. E., Farm Manures, Orange Judd Publishing Co., New York, p. 

 146, 1914. 



17. Turk, L. M., The composition of soybean plants at \arious growth stages 

 as related to their rate of decomposition and use as green manure, Univ. 

 Missouri Agr. Expt. Sta. Bull. 173, 1932. 



18. Waksman, S. A., Chemical and microbiological principles underlying the 

 decomposition of green manures in the soil, J. Am. Soc. Agron., 21:1-18, 

 1929. 



