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Collections Organic Roots Collection Remove constraint Organic Roots Collection: Organic Roots Collection Series Technical bulletin. Remove constraint Technical bulletin.: Technical bulletin.
Displaying items 31 - 40 of 191 start over

31. Control of southern celery mosaic in Florida by removing weeds that serve as souces of mosaic infection

Author:
Wellman, F. L. (Frederick Lovejoy), 1897
Subject:
Celery -- Diseases and pests. , Mosaic diseases. , Weeds -- Florida -- Control.
Physical description:
16 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

32. Control of the blue mold (downy mildew) disease of tobacco by spraying

Author:
Clayton, E. E. (Edward Eastman), 1894
Subject:
Tobacco blue mold -- Control. , Downy mildew diseases -- Control.
Physical description:
23 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

33. Cotton root rot as affected by crop rotation and tillage at San Antonio, Texas

Author:
Ratliffe, George T. (George Thomas), 1886
Subject:
Cotton root rot. , Cotton -- Diseases and pests -- Texas. , Crop rotation -- Texas.
Physical description:
31 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

34. Crop rotation and tillage experiments at the Northern Great Plains Field Station, Mandan, N. Dak.

Author:
Sarvis, J. T. (Johnson Thatcher), 1886 , Thysell, John C. (John Carl), b. 1884.
Subject:
Crop rotation -- Research -- North Dakota.
Physical description:
76 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

35. Crop-plant stimulation with paper mulch

Author:
Flint, Lewis Herrick, 1893
Subject:
Mulching.
Physical description:
20 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

36. Curly-top resistance in sugar beets and tests of the resistant variety U.S. No. 1

Author:
Carsner, Eubanks, 1891
Subject:
Sugar beet -- Disease and pest resistance. , Curly-top.
Physical description:
68 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

37. Drought in the United States analyzed by means of the theory of probability

Author:
Benton, George Stock, 1917
Subject:
Droughts -- United States -- Mathematical models. , Meteorology -- Periodicity. , Weather forecasting.
Physical description:
63 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

38. Drought survival of native grass species in the central and southern Great Plains, 1935

Author:
Savage, D. A. (David A.), 1901
Subject:
Plants -- Drought tolerance. , Grasses -- Great Plains.
Physical description:
55 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

39. Ecological studies of the beet leaf hopper

Author:
Carter, Walter, 1897
Subject:
Beet leaf-hopper.
Physical description:
115 p., [8] p. of plates
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.

40. Economical use of large tile for land drainage

Alternative Title:
Land drainage.
Author:
Marsden, Roger D. (Roger Dearborn), 1881
Subject:
Drain-tiles. , Drainage.
Physical description:
24 p.
Collection:
Organic Roots Collection
Series:
Technical bulletin.
Part Of:
Technical bulletin.