Zobrazeno 1 - 10
of 41
pro vyhledávání: '"L. B. Olmstead"'
Autor:
Donald C. Martinson, L. B. Olmstead
Publikováno v:
Soil Science Society of America Journal. 14:34-38
The Effect of Long-time Cropping Systems and Tillage Practices Upon Soil Aggregation at Hays, Kansas
Autor:
L. B. Olmstead
Publikováno v:
Soil Science Society of America Journal. 11:89-92
Autor:
L. B. Olmstead
Publikováno v:
Physical Review (Series I). 35:31-46
Autor:
S. D. Nijhawan, L. B. Olmstead
Publikováno v:
Soil Science Society of America Journal. 12:50-53
Autor:
Carlton S. Proctor, Jacob Feld, Howard F. Peckworth, F. J. Sanger, Frank E. Fahlquist, A. J. Weinig, Joel D. Justin, E. W. Lane, Donald M. Burmister, Theodore T. Knappen, L. B. Olmstead, Waldo I. Kenerson, Carl H. Kadie, Charles H. Lee, T. A. Middlebrooks, F. Knapp
Publikováno v:
Transactions of the American Society of Civil Engineers. 104:156-181
Publikováno v:
Journal of the American Chemical Society. 43:1575-1580
Publikováno v:
Journal of the American Chemical Society. 43:1580-1583
Autor:
L. B. Olmstead
Publikováno v:
Soil Science Society of America Journal. 4:89-93
Publikováno v:
Soil Science Society of America Journal. :120-133
Autor:
L. B. Olmstead
Publikováno v:
Agronomy Journal. 6:190-204
The estimation of the probable errors of a large number of small duplicate plats well distributed in the area devoted to a field experiment indicates that the precision of agricultural experiments can be increased by replicating the experiments on sm