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Assessing Within-Field Variation In Alfalfa Leaf Area Index Using Uav Visible Vegetation Indices, Keegan Hammond, Ruth Kerry, Ryan R. Jensen, Ross Spackman, April Hulet, Bryan G. Hopkins, Matt A. Yost, Austin P. Hopkins, Neil C. Hansen
Assessing Within-Field Variation In Alfalfa Leaf Area Index Using Uav Visible Vegetation Indices, Keegan Hammond, Ruth Kerry, Ryan R. Jensen, Ross Spackman, April Hulet, Bryan G. Hopkins, Matt A. Yost, Austin P. Hopkins, Neil C. Hansen
Plants, Soils, and Climate Faculty Publications
This study examines the use of leaf area index (LAI) to inform variable-rate irrigation (VRI) for irrigated alfalfa (Medicago sativa). LAI is useful for predicting zone-specific evapotranspiration (ETc). One approach toward estimating LAI is to utilize the relationship between LAI and visible vegetation indices (VVIs) using unmanned aerial vehicle (UAV) imagery. This research has three objectives: (1) to measure and describe the within-field variation in LAI and canopy height for an irrigated alfalfa field, (2) to evaluate the relationships between the alfalfa LAI and various VVIs with and without field average canopy height, and (3) to …
Considerations For Crop Rotation From Alfalfa To Corn, Earl Creech, Matt Yost, Grant Cardon, Corey Ransom, Jason Clark
Considerations For Crop Rotation From Alfalfa To Corn, Earl Creech, Matt Yost, Grant Cardon, Corey Ransom, Jason Clark
All Current Publications
The importance of rotating out of a declining alfalfa stand is well established. As the alfalfa stand ages, forage yield and quality decline, while weed, insect, and disease pressures increase. Terminating the stand and growing one or more other crops for several (2–3) years allows a grower to press the reset button on a piece of ground. These years of growing another crop will result in more productive alfalfa when a new stand is planted again.
Gophers Eating Into Ag Profits, Dennis Hinkamp
Gophers Eating Into Ag Profits, Dennis Hinkamp
All Current Publications
No abstract provided.
Fertilizer Management For Alfalfa, Richard Koenig, Clyde Hurst, James Barnhill, Boyd Kitchen, Marlon Winger, Mike Johnson
Fertilizer Management For Alfalfa, Richard Koenig, Clyde Hurst, James Barnhill, Boyd Kitchen, Marlon Winger, Mike Johnson
All Archived Publications
No abstract provided.
Bulletin No. 370 - The Superb Plant Bug, Adelphocoris Superbus (Uhler): Its Life History And Its Relation To Seed Development In Alfalfa, Charles J. Sorenson, Lowell Cutler
Bulletin No. 370 - The Superb Plant Bug, Adelphocoris Superbus (Uhler): Its Life History And Its Relation To Seed Development In Alfalfa, Charles J. Sorenson, Lowell Cutler
UAES Bulletins
Infestations of the superb plant bug, Adelphocoris superbus (Uhler), in Utah alfalfa fields first came to the attention of entomologists of the Utah Agricultural Experiment Station during their investigations of the seed chalcid and lygus bug problems of alfalfa seed production in the Uinta Basin from 1926 to 1934. Because of its occurrence in considerable numbers, particularly in first crop alfalfa fields with thin stands, the superb plant bug was suspected of interfering with seed development. Consequently an investigation of the activities of this insect was begun in the summer of 1932 and continued through that of 1933.
Objectives sought …
Bulletin No. 180 - The Irrigation Of Alfalfa, F. S. Harris, D. W. Pittman
Bulletin No. 180 - The Irrigation Of Alfalfa, F. S. Harris, D. W. Pittman
UAES Bulletins
In the United States alfalfa-growing has gone hand in hand with the development of irrigation. Alfalfa did not become an important crop in the country until after irrigation began to be practised in the West. Very soon after the pioneers reached Utah, alfalfa was brought to the state where it found conditions well suited to its growth. Wherever settlement extended alfalfa was raised as one of the most important crops, and finally from the West it has spread eastward into the humid parts of the country.
Bulletin No. 171 - Alfalfa Seed Growing And The Weather: With Particular Reference To Conditions In Utah, J. Cecil Alter
Bulletin No. 171 - Alfalfa Seed Growing And The Weather: With Particular Reference To Conditions In Utah, J. Cecil Alter
UAES Bulletins
The demand for alfalfa seed has far outrun domestic production. Since the labor and expense of producing the crop are light, and the profits attractive in favorable years, a desire is manifest wherever alfalfa is grown, to save a crop for seed whenever the meteorological elements favor its setting and maturing. Climate is generally acknowledged to be the limiting factor in alfalfa seed production, and the current weather the major factor affecting the yearly yields.
Circular No. 10 - The Control Of The Alfalfa Weevil, E. G. Titus
Circular No. 10 - The Control Of The Alfalfa Weevil, E. G. Titus
UAES Circulars
During the work with the alfalfa \weevil throughout several very different seasons and in different regions, of the State, a number of methods of control have been developed that bid fair to be of service in combating this insect. The prospect for the alfalfa grower in the infested area looks more hopeful each year. It is the purpose of this circular to give a brief account of the alfalfa weevil, its present distribution, and the principal methods that appear to be of value in its control.
Bulletin No. 61 - Alfalfa Or Lucern: The Cutting Time. Its Feeding Value., Luther Foster, Lewis A. Merrill
Bulletin No. 61 - Alfalfa Or Lucern: The Cutting Time. Its Feeding Value., Luther Foster, Lewis A. Merrill
UAES Bulletins
These experiments, as originally planed, had for their object the determination of the best time to cut alfalfa in order to secure the most profitable annual yield, its chemical composition, digestibility and the results of feeding trials being considered. A comparison of the yield and feeding value of the first, second and third crops was also made a part of the investigation, and as with the different cuttings, the composition and digestibility formed a part of the work. In conducting this experiment to determine the comparative feeding value of the various cuttings and of the different crops of alfalfa, some …
Bulletin No. 48 - Alfalfa Or Lucern: Its Chemical Life History, John A. Widtsoe
Bulletin No. 48 - Alfalfa Or Lucern: Its Chemical Life History, John A. Widtsoe
UAES Bulletins
No abstract provided.
Bulletin No. 44 - Alfalfa Or Lucerne, A. A. Mills
Bulletin No. 44 - Alfalfa Or Lucerne, A. A. Mills
UAES Bulletins
This bulletin gives the details of trials with alfalfa for the two years of 1894-5 and 1895-6. It also gives a summary of the results for three seasons. Bulletin 31 of the Station gives the details of the year's work not given here. Attention is also called to the work reported in bulletin 40 of this Station, in regard to feeding grasses, mostly alfalfa, to pigs.