Search National Agricultural Library Digital Collections

Limit your search

Subjects
Authors
Year
Series
Collections
Subjects
Authors
Year
pp12345pp
A-Z SortNumerical Sort
20085131
20094595
20064037
20073911
20103581
20053523
20042961
20032194
20112054
20021785
Series
Collections

You searched for:

Years 1931x Collections Organic Roots Collectionx
Displaying items 1 - 20 of 22 start over
Sort by: Relevance Title
1. A study of the influence of herbaceous plant cover on surface run-off and soil erosion in relation to grazing on the Wasatch plateau in Utah
Author(s):
Forsling, C. L. (Clarence Luther), 1893
Subject(s):
Grazing -- Utah. , Soil erosion -- Utah.
Series:
Technical bulletin.
Year:
1931
2. Apanteles thompsoni Lyle : a braconid parasite of the European corn borer
Author(s):
Vance, Arlo M. (Arlo McCrillis), 1899
Subject(s):
Parasitic insects. , Corn -- Diseases and pests. , European corn borer.
Series:
Technical bulletin.
Year:
1931
3. Buckwheat milling and its by-products
Author(s):
Coe, Mayne R. (Mayne Reid) , 1888-
Subject(s):
Buckwheat Milling , Buckwheat , buckwheat , small grains , milling , milling byproducts , flour , chemical composition , nutritive value
Series:
Circular
Year:
1931
4. Crop rotation and tillage experiments at the San Antonio (Texas) Field Station
Author(s):
Ratliffe, George T. (George Thomas) , 1886- , Atkins, Irvin Milburn , 1904-
Subject(s):
Cropping systems Texas , Grain Texas Field experiments , climatic factors , field experimentation , crop rotation , plant cultural practices , crop yield , root rot
Series:
Circular
Year:
1931
5. Crotalaria, a new legume for the South
Author(s):
McKee, Roland, 1880 , Enlow, C. R. (Charles Ranger), 1893 , USDA
Subject(s):
legumes , plant physiology , feed quality , forage quality , poisonous plants , green manures , ornamental value , crop-weed competition , chemical composition , seed storage , sowing , crop production , harvesting , forage crops , crop yield , seed crop production , insect pests , plant pathogens , plant diseases and disorders , descriptions , Crotalaria juncea , Crotalaria incana , Crotalaria pallida , Crotalaria spectabilis , Sunn hemp.
Series:
Circular
Year:
1931
6. Crotalaria, a new legume for the South
Author(s):
McKee, Roland , 1880- , Enlow, C. R. (Charles Ranger) , 1893-
Subject(s):
Sunn hemp , legumes , plant physiology , feed quality , forage quality , poisonous plants , green manures , ornamental value , crop-weed competition , chemical composition , seed storage , sowing , crop production , harvesting , forage crops , crop yield , seed crop production , insect pests , plant pathogens , plant diseases and disorders , descriptions , Crotalaria juncea , Crotalaria incana , Crotalaria pallida , Crotalaria spectabilis
Series:
Circular
Year:
1931
7. Economical use of large tile for land drainage
Author(s):
Marsden, Roger D. (Roger Dearborn), 1881
Subject(s):
Drain-tiles. , Drainage.
Series:
Technical bulletin.
Year:
1931
8. Experiments on hybrid vigor and convergent improvement in corn
Author(s):
Richey, Frederick D. (Frederick David), 1884 , Sprague, G. F. (George Frederick), 1902
Subject(s):
Corn -- Research.
Series:
Technical bulletin.
Year:
1931
9. Farm water power
Author(s):
Warren, George M. (George Milton)
Subject(s):
Water-power , Hydroelectric power plants , water power , energy resources , stream flow , streams , water resources , turbine engines , renewable energy sources
Series:
Farmers' bulletin
Year:
1931
10. Inheritance of winter hardiness, growth habit, and stem-rust reaction in crosses between Minhardi Winter and H-44 Spring wheats
Author(s):
Quisenberry, Karl S. (Karl Spangler), 1897
Subject(s):
Wheat -- Genetics -- Research.
Series:
Technical bulletin.
Year:
1931
11. Macrocentrus gifuensis Ashmead : a polyembryonic braconid parasite in the European corn borer
Author(s):
Parker, Harry L.
Subject(s):
Parasitic insects. , Host-parasite relationships. , European corn borer.
Series:
Technical bulletin.
Year:
1931
12. Morphologic and physiologic studies on stem-rust resistance in cereals
Author(s):
Hart, Helen, 1900
Subject(s):
Cereal rusts. , Grain -- Diseases and pests.
Series:
Technical bulletin.
Year:
1931
13. Petroleum oils and oil emulsions as insecticides, and their use against the San Jose scale on peach trees in the south
Author(s):
Swingle, H. S. (Homer Scott), 1902 , Snapp, Oliver I. (Oliver Irvin), 1895
Subject(s):
Insecticides. , Lubrication and lubricants. , Petroleum. , Emulsions. , San JoseĢ scale.
Series:
Technical bulletin.
Year:
1931
14. Removing spray residue from apples and pears
Author(s):
Diehl, H. C. (Helmut Charles) , 1894- , Lutz, J. M. (Jacob Martin) , 1908-1968 , Ryall, A. Lloyd (Albert Lloyd) , 1904-
Subject(s):
Apples Residues , Pear Residues , pesticide residues , chemical residues , fungicide residues , food safety , spraying , orchards , toxic substances , tree fruits , cleaning agents
Series:
Farmers' bulletin
Year:
1931
15. Results of seed-treatment experiments with yellow dent corn
Author(s):
Holbert, James R. (James Ransom), 1890 , Koehler, Benjamin, 1890
Subject(s):
Corn -- Seeds -- Research.
Series:
Technical bulletin.
Year:
1931
16. Sisal and henequen, plants yielding fiber for binder twine
Author(s):
Dewey, Lyster H. (Lyster Hoxie) , 1865-1944
Subject(s):
Sisal (Plant) , Henequen (Plant) , sisal , plant fibers , plant characteristics , plant cultural practices , processing technology , crop yield , harvesting , plant byproducts , Agave fourcroydes
Series:
Circular
Year:
1931
17. The Great Basin wireworm in the Pacific Northwest
Author(s):
Lane, M. C. (Merton Chesleigh) , 1893-
Subject(s):
Wireworms Northwestern States , larvae , insect pests , arthropod pests , insect control , Elateridae
Series:
Farmers' bulletin
Year:
1931
18. The red harvester ant and how to subdue it
Author(s):
Wildermuth, V. L. (Vernon Leroy) , 1885- , Davis, E. G. (Earl George) , 1901-
Subject(s):
Pogonomyrmex Control Southwestern States , insect pests , insect control
Series:
Farmers' bulletin
Year:
1931
19. The use of logs and poles in farm construction
Author(s):
Miller, T. A. H. (Thomas Arrington Huntington) , 1885-
Subject(s):
Log cabins , Log buildings , farm buildings , agricultural structures and facilities , wood beams , wood construction , construction materials
Series:
Farmers' bulletin
Year:
1931
20. The Chemotropic responses of the housefly, the green-bottle flies, and the black blowfly
Author(s):
Laake, E. W.
Subject(s):
Housefly. , Green-bottle flies. , Blowflies.
Series:
Technical bulletin.
Year:
1931