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Articles 1 - 30 of 148
Full-Text Articles in Life Sciences
Developing Economic Injury Levels For Thrips (Frankliniella Occidentalis) In Idaho Alfalfa Under Controlled Pest Populations, John Reed Findlay, Joseph Sagers
Developing Economic Injury Levels For Thrips (Frankliniella Occidentalis) In Idaho Alfalfa Under Controlled Pest Populations, John Reed Findlay, Joseph Sagers
The Journal of Extension
Thrips are a new pest of alfalfa in Eastern Idaho. University of Idaho Extension Educators studied the yield losses associated with this pest in a controlled greenhouse experiment. This data has been used to calculate the economic injury level (EIL) of thrips in alfalfa. The EIL represents the level of insect infestation at which control measures will begin to be economically viable. We calculate that for the 2021 growing season conditions the EIL was approximately 20 thrips per six stems. We also calculated EIL curves that growers and consultants can use as spray costs and hay values change.
The Impact Of Adding Hops To Alfalfa At Different Rates On Silage Quality And Methane Emissions In Vitro, Erdem Gülümser, Hani̇fe Mut, Eki̇n Sucu, Uğur Başaran, Medi̇ne Çopur Doğrusöz
The Impact Of Adding Hops To Alfalfa At Different Rates On Silage Quality And Methane Emissions In Vitro, Erdem Gülümser, Hani̇fe Mut, Eki̇n Sucu, Uğur Başaran, Medi̇ne Çopur Doğrusöz
Turkish Journal of Agriculture and Forestry
Legumes are typically challenging to ensile due to their low concentration of water-soluble carbohydrates and high capacity for buffering. If legumes and medicinal plants are ensiled together, the silage quality increases, which benefits the digestive system of ruminates. The aim of this study was to research the effects of different alfalfa (Medicago sativa L.) and hops (Humulus lupulus L.) ratios on silage quality and in vitro rumen fermentation traits. The plant materials were chopped to a particle size of <2 cm; then alfalfa (A) and hops (H) were ensiled in ratios of 100A + 0H, 75A + 25H, 50A + 50H, 25A + 75H and 0A + 100H by weight with 4 replicates. Fresh silage samples were left to ferment for 45 days at 25 ± 2 °C. Subsequently, it was observed that hops added to alfalfa improved the silage’s fermentation qualities. At a 75A + 25H ratio, the silage quality increased due to having a lower pH and dry matter ratio as well as increased values for Flieg score, crude protein, relative feed, and condensed tannin concentration. A higher proportion of alfalfa in the silage mixture increased methane (CH4) and carbon dioxide (CO2) and decreased lactic acid (LA). Comparing 50A + 50H and 25A + 75H silages to 100A + 0H, the CH4 production was 26.19% and 27.80% lower, respectively, and the CO2 production decreased by 25.61% and 28.15%, respectively. Consequently, the 50A + 50H and 25A + 75H silage ratios are advised for feeding ruminants. Furthermore, more research with different forage combinations is required to understand how hops influence rumen fermentation.
Guide To Drought Tolerance Of Utah Field Crops, Matt Yost, Tina Sullivan, Dakota Boren, Luree Johnson, Melanie Mills, Earl Creech, Boyd Kitchen, Randall Violett
Guide To Drought Tolerance Of Utah Field Crops, Matt Yost, Tina Sullivan, Dakota Boren, Luree Johnson, Melanie Mills, Earl Creech, Boyd Kitchen, Randall Violett
All Current Publications
Crop variety selection is one of the most important choices on the farm. Crop genetics determine a significant portion of the yield potential and resource use efficiency. Crop types and genetics that use water more efficiently will become increasingly important as water becomes scarcer. Throughout Utah and the Western United States, water availability is decreasing due to various factors, including reduced snowpack and rapid urban growth. Alfalfa, other hay, small grains, and corn are grown on more acres than any other crops in Utah and much of the Intermountain West. These crops all have varieties, hybrids, and cultivars with the …
Pasture Biomass Estimation Using Crop Surface Modeling And Vegetation Indices, Brendan Macinnis
Pasture Biomass Estimation Using Crop Surface Modeling And Vegetation Indices, Brendan Macinnis
All Theses
Biomass estimations are a critical function of any grazing or haylage system. Determination of ideal harvesting or grazing times help optimize the quality and quantity of above-ground biomass (AGB). The objective of this study was to evaluate the use of unmanned aerial vehicles (UAVs) for Alfalfa and Tall Fescue biomass estimations. Using a DJI Mavic Pro, RGB and NDVI images were taken and used to create orthomosaic images. Structure-from-motion (SfM) techniques were used to developed digital elevation models to evaluate the change in canopy height (∆H) between pre- and post-harvests. Change in canopy height (∆H) was shown to provide the …
Alfanet: A Database Of Alfalfa-Bacterial Stem Blight Protein–Protein Interactions Revealing The Molecular Features Of The Disease-Causing Bacteria, Raghav Kataria, Rakesh Kaundal
Alfanet: A Database Of Alfalfa-Bacterial Stem Blight Protein–Protein Interactions Revealing The Molecular Features Of The Disease-Causing Bacteria, Raghav Kataria, Rakesh Kaundal
Plants, Soils and Climate Student Research
Alfalfa has emerged as one of the most important forage crops, owing to its wide adaptation and high biomass production worldwide. In the last decade, the emergence of bacterial stem blight (caused by Pseudomonas syringae pv. syringae ALF3) in alfalfa has caused around 50% yield losses in the United States. Studies are being conducted to decipher the roles of the key genes and pathways regulating the disease, but due to the sparse knowledge about the infection mechanisms of Pseudomonas, the development of resistant cultivars is hampered. The database alfaNET is an attempt to assist researchers by providing comprehensive Pseudomonas proteome …
Analysis Of The Effect Of Reasonable Close Planting On Respiration Characteristics Of Alfalfa(Medicago Sativa L.) Artificial Grassland, Zhuo Luo
Turkish Journal of Agriculture and Forestry
The degree of dense planting affects the respiration characteristics of alfalfa artificial grassland. In the process of alfalfa seed production, high plant and multibranch forage can be obtained by reasonable close planting. Therefore, an analysis method of the effect of reasonable close planting on respiration characteristics of garden alfalfa artificial grassland is put forward. In this method, the density characteristics of alfalfa planting were determined from three aspects of plant horizontal density, vertical density and three-dimensional density. The infrared carbon dioxide gas analyser was used to measure the carbon dioxide flux of the garden. The combined analysis method was constructed …
Functional Characterization Of Petiolule-Like Pulvinus (Plp) Gene In Abscission Zone Development In Medicago Truncatula And Its Application To Genetic Improvement Of Alfalfa, Juan Du, Shaoyun Lu, Maofeng Chai, Chuanen Zhou, Liang Sun, Yuhong Tang, Jaydeep Kolape, Zhaozhu Wen, Marjan Behzadirad, Tianxiu Zhong, Juan Sun, Yunwei Zhang, Zeng-Yu Wang
Functional Characterization Of Petiolule-Like Pulvinus (Plp) Gene In Abscission Zone Development In Medicago Truncatula And Its Application To Genetic Improvement Of Alfalfa, Juan Du, Shaoyun Lu, Maofeng Chai, Chuanen Zhou, Liang Sun, Yuhong Tang, Jaydeep Kolape, Zhaozhu Wen, Marjan Behzadirad, Tianxiu Zhong, Juan Sun, Yunwei Zhang, Zeng-Yu Wang
Department of Agronomy and Horticulture: Faculty Publications
Alfalfa (Medicago sativa L.) is one of the most important forage crops throughout the world. Maximizing leaf retention during the haymaking process is critical for achieving superior hay quality and maintaining biomass yield. Leaf abscission process affects leaf retention. Previous studies have largely focused on the molecular mechanisms of floral organ, pedicel and seed abscission but scarcely touched on leaf and petiole abscission. This study focuses on leaf and petiole abscission in the model legume Medicago truncatula and its closely related commercial species alfalfa. By analysing the petiolule-like pulvinus (plp) mutant in M. truncatula at phenotypic level (breakstrength and shaking …
Nitrogen Fertilizer Guide For First-Year Small Grains Following Alfalfa, Matt Yost, Collin Pound, Earl Creech, Grant Cardon, Jody Gale, Michael Pace, Boyd Kitchen, Steve Price, Kevin Heaton, Mark Nelson, Trent Wilde, Katie Russell
Nitrogen Fertilizer Guide For First-Year Small Grains Following Alfalfa, Matt Yost, Collin Pound, Earl Creech, Grant Cardon, Jody Gale, Michael Pace, Boyd Kitchen, Steve Price, Kevin Heaton, Mark Nelson, Trent Wilde, Katie Russell
All Current Publications
Nitrogen (N) fertilizer is one of the most expensive crop inputs. It is an essential nutrient for most crops and often increases yield more than any other nutrient. Small grains are no exception. Alfalfa is the dominant crop in Utah in terms of area and gross sales, and as a nitrogen-fixing legume, it does not require nitrogen fertilizer. When terminated, alfalfa usually leaves a lot of nitrogen in the soil for subsequent crops. The amount of nitrogen that it supplies to following crops has been termed the “alfalfa N credit.” In many cases, this credit can be up to 300 …
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.
Ten Reasons Why Alfalfa Is Highly Suitable For The West, Matt Yost, Niel Allen, Earl Creech, Dan Putnam, Jody Gale, Glenn Shewmaker
Ten Reasons Why Alfalfa Is Highly Suitable For The West, Matt Yost, Niel Allen, Earl Creech, Dan Putnam, Jody Gale, Glenn Shewmaker
All Current Publications
This fact sheet gives ten key reasons why alfalfa is suitable in western regions.
Exploring The Potential Of Nitric Oxide And Hydrogen Sulfide (Nosh)-Releasing Synthetic Compounds As Novel Priming Agents Against Drought Stress In Medicago Sativa Plants, Chrystalla Antoniou, Rafaella Xenofontos, Giannis Chatzimichail, Anastasis Christou, Khosrow Kashfi, Vasileios Fotopoulos
Exploring The Potential Of Nitric Oxide And Hydrogen Sulfide (Nosh)-Releasing Synthetic Compounds As Novel Priming Agents Against Drought Stress In Medicago Sativa Plants, Chrystalla Antoniou, Rafaella Xenofontos, Giannis Chatzimichail, Anastasis Christou, Khosrow Kashfi, Vasileios Fotopoulos
Publications and Research
Land plants are continuously exposed to multiple abiotic stress factors like drought, heat, and salinity. Nitric oxide (NO) and hydrogen sulfide (H2S) are two well-examined signaling molecules that act as priming agents, regulating the response of plants to stressful conditions. Several chemical donors exist that provide plants with NO and H2S separately. NOSH is a remarkable novel donor as it can donate NO and H2S simultaneously to plants, while NOSH-aspirin additionally provides the pharmaceutical molecule acetylsalicylic acid. The current study aimed to investigate the potential synergistic effect of these molecules in drought-stressed Medicago sativa L. plants by following a pharmacological …
Establishment Of Perennial Legumes With An Annual Warm-Season Grass As A Companion Crop, Martina N. La Vallie
Establishment Of Perennial Legumes With An Annual Warm-Season Grass As A Companion Crop, Martina N. La Vallie
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
The yields of perennial forage legumes are often hindered during the establishment year due to slow germination rates and weed competition. This study was conducted to determine if sorghum-sudangrass (Sorghum bicolor x S. bicolor var. sudanese) is a compatible annual companion crop for increased forage production, weed suppression, and legume establishment. In 2016, sorghum-sudangrass was paired with alfalfa (Medicago sativa L. ‘Ranger’), birdsfoot trefoil (Lotus corniculatus L.), Illinois bundleflower [Desmanthus illinoensis (Michx.) MacMill. ex B.L. Rob. & Fernald], purple prairie clover (Dalea purpurea Vent.), red clover (Trifolium pratense L.), and roundhead lespedeza (Lespedeza capitata Michx.). We studied effects of a …
Identification Of Physiological And Morphological Traits Governing High Water Use Efficiency In Alfalfa, Krishna Ghimire
Identification Of Physiological And Morphological Traits Governing High Water Use Efficiency In Alfalfa, Krishna Ghimire
Electronic Theses and Dissertations
Alfalfa is an important forage crop worldwide. Being deep-rooted, N2-fixing and high yielding, alfalfa has great economic, ecological and nutritional benefits. While alfalfa is a high yielding crop, its high productivity depends on irrigation water in many areas and consumes the greatest amount of water among all the major crops. With a growing demand for water resources due to an increase in human population and industrial water use, plus frequent drought due to climate change, irrigation water has become increasingly scarce and expensive. To sustain high production of alfalfa with limited water resource, alfalfa cultivars with improved water use efficiency …
An Analysis Of Factors Impacting Hay Auction Prices And The Potential For Nap To Reduce Alfalfa Revenue Risk, Madeline L. Dant
An Analysis Of Factors Impacting Hay Auction Prices And The Potential For Nap To Reduce Alfalfa Revenue Risk, Madeline L. Dant
Theses and Dissertations--Agricultural Economics
Hay auctions have generally been understudied due to their unique market structure. Therefore, the factors that influence the price of hay at auction markets are not well-known. The price of hay at auction markets reflects the various characteristics that differentiate each lot of hay sold. This study is aimed at analyzing the determinants of Central Kentucky hay prices. A hedonic price model is estimated using data collected from a Central Kentucky hay auction. Known hay attributes include forage species, form, bale weight, and nutritive value. An important aspect of this analysis is to determine whether the quality measures of the …
The Potential For Reducing N Fertilizer Inputs For Corn Production In The First Year Following Alfalfa, Earl Creech, Grant Cardon, James Barnhill, Jody Gale, Clark Israelsen, Boyd Kitchen, Mark Nelson, Mike Pace
The Potential For Reducing N Fertilizer Inputs For Corn Production In The First Year Following Alfalfa, Earl Creech, Grant Cardon, James Barnhill, Jody Gale, Clark Israelsen, Boyd Kitchen, Mark Nelson, Mike Pace
All Current Publications
The objectives of the project reported in this fact sheet were to 1) examine current post-alfalfa N fertilizer credit guidelines and investigate the potential to further reduce N fertilizer rates (if possible) on first year corn after alfalfa across Utah, and 2) accordingly update the USU Extension corn management recommendations and promote grower awareness and adoption of the new guidelines.
2015 Costs And Returns For Flood Irrigated Alfalfa, Box Elder County, Lyle Holmgren, Mike Pace
2015 Costs And Returns For Flood Irrigated Alfalfa, Box Elder County, Lyle Holmgren, Mike Pace
All Current Publications
No abstract provided.
Growth And Nodulation Of Alfalfa-Rhizobia Symbiosis Under Salinity: Electrolyte Leakage, Stomatal Conductance, And Chlorophyll Fluorescence, Lahbib Latrach, Mohamed Farissi, Mohammed Mouradi, Bouchra Makoudi, Abdelaziz Bouizgaren, Cherki Ghoulam
Growth And Nodulation Of Alfalfa-Rhizobia Symbiosis Under Salinity: Electrolyte Leakage, Stomatal Conductance, And Chlorophyll Fluorescence, Lahbib Latrach, Mohamed Farissi, Mohammed Mouradi, Bouchra Makoudi, Abdelaziz Bouizgaren, Cherki Ghoulam
Turkish Journal of Agriculture and Forestry
The present work was a study on the adverse effects of salinity on growth, nodulation, and some physiological parameters in 4 symbiotic combinations involving 2 Moroccan alfalfa (Medicago sativa L.) populations (Demnate and Tata) and 2 rhizobial strains (rhLAr 1 and rhLAr 4). The experiment was conducted in the greenhouse at 32/22 °C day/night, 50%-80% relative humidity, and a photoperiod of 16 h. The seedlings were separately inoculated with suspensions of 2 rhizobial strains and grown under 2 NaCl treatments, 0 mM (control) and 100 mM (salt stress), in plastic pots filled with sterile sand and peat at 9/10 and …
Beaver County Crop Production Costs And Returns, 2012, Mark Nelson, Kynda Curtis, Chris Lewis
Beaver County Crop Production Costs And Returns, 2012, Mark Nelson, Kynda Curtis, Chris Lewis
All Current Publications
Sample costs and returns to establish and produce alfalfa hay, barley, oats, and corn (grain or silage) under pivot irrigation in Beaver County, Utah, are presented in this publication.
Changes In The Forage Yield And Quality Of Legume–Grass Mixtures Throughout A Vegetation Period, Sebahatti̇n Albayrak, Mevlüt Türk
Changes In The Forage Yield And Quality Of Legume–Grass Mixtures Throughout A Vegetation Period, Sebahatti̇n Albayrak, Mevlüt Türk
Turkish Journal of Agriculture and Forestry
The aim of the present study was to determine the changes in the forage yield and quality of binary and ternary mixtures of alfalfa (Medicago sativa L.), red clover (Trifolium pratense L.), smooth bromegrass (Bromus inermis Leys.), orchardgrass (Dactylis glomerata L.), and meadow fescue (Festuca pratensis Huds.) throughout a vegetation period. Plots were established in 2008 in Isparta, Turkey, in a randomized complete block design with 3 replicates. Four cuttings were done during the 2009 and 2010 vegetative periods. The levels of crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), and relative feed value (RFV) were determined …
Northern Utah Small Cow-Calf Pasture Finished Beef Production Costs & Returns, 2012, Kynda Curtis, Trevor Knudsen, Jennifer Macadam
Northern Utah Small Cow-Calf Pasture Finished Beef Production Costs & Returns, 2012, Kynda Curtis, Trevor Knudsen, Jennifer Macadam
All Current Publications
Sample costs and returns to raise pasture-fed beef cattle for direct to consumer sales on small cow-calf operations in northern Utah are presented in this publication.
Millard County Crop Production Costs And Returns, 2012, Trenton Wilde, Kynda Curtis, Chris Lewis
Millard County Crop Production Costs And Returns, 2012, Trenton Wilde, Kynda Curtis, Chris Lewis
All Current Publications
Sample costs and returns to establish and produce alfalfa hay, barley, and corn under flood irrigation and wheat under wheel line irrigation in Millard County, Utah, are presented in this publication.
Garfield County Crop Production Costs And Returns, 2011, Kevin Heaton, Kynda Curtis
Garfield County Crop Production Costs And Returns, 2011, Kevin Heaton, Kynda Curtis
All Current Publications
Sample costs and returns to establish and produce alfalfa hay and oat hay under flood irrigation, or alfalfa hay under wheel line irrigation in Garfield County, Utah, are presented in this publication.
Wasatch Front Mixed Vegetable Production Costs And Returns, 2012, Shawn Olsen, Kynda Curtis
Wasatch Front Mixed Vegetable Production Costs And Returns, 2012, Shawn Olsen, Kynda Curtis
All Current Publications
Sample costs and returns to produce mixed vegetables under flood irrigation in the Davis and Weber County area of Utah are presented in this publication.
Duchesne County Crop Production Costs And Returns, 2011, Troy Cooper, Kynda Curtis
Duchesne County Crop Production Costs And Returns, 2011, Troy Cooper, Kynda Curtis
All Current Publications
Sample costs and returns to establish and produce alfalfa hay, barley, oats, and wheat under wheel line irrigation or corn silage under pivot irrigation in Duchesne County, Utah, are presented in this publication.
Buying And Selling Corn Silage Or Other High Moisture Feeds: Value The Feed Not The Water, Dillon Feuz, Clark Israelsen, Allen Young, Lyle Holmgren
Buying And Selling Corn Silage Or Other High Moisture Feeds: Value The Feed Not The Water, Dillon Feuz, Clark Israelsen, Allen Young, Lyle Holmgren
All Current Publications
Questions often arise among growers who have corn silage or alfalfa silage (haylage) to sell and dairy producers and feedlot operators who are looking to buy those feeds as to how to establish a fair price. Because of the high moisture content of these feeds (50-75% water) and other similar feeds (barley silage, oat silage, sorghum silage and wheat silage) the transportation costs are rather substantial relative to the value of the feed.
Kane County Crop Production Costs And Returns, 2011, Kevin Heaton, Kynda Curtis
Kane County Crop Production Costs And Returns, 2011, Kevin Heaton, Kynda Curtis
All Current Publications
Sample costs and returns to establish and produce alfalfa hay and oat hay under wheel line irrigation in Kane County, Utah are presented in this publication.
Wasatch County Crop Production Costs And Returns, 2011, Allan Sulser, Kynda Curtis, Don Snyder
Wasatch County Crop Production Costs And Returns, 2011, Allan Sulser, Kynda Curtis, Don Snyder
All Current Publications
Sample costs and returns to establish and produce alfalfa hay, barley, oats, and oat hay under wheel line irrigation in Wasatch County, Utah are presented in this publication.
Box Elder County Crop Production Costs And Returns, 2011, Lyle Holmgren, Kynda Curtis, Don Snyder
Box Elder County Crop Production Costs And Returns, 2011, Lyle Holmgren, Kynda Curtis, Don Snyder
All Current Publications
Sample costs and returns to establish and produce alfalfa hay, corn (silage), corn grain or irrigated wheat under flood irrigation and dry wheat in Box Elder County, Utah are presented in this publication.
Cache County Crop Production Costs And Returns, 2011, Clark Israelsen, Rob Lee, Don Snyder
Cache County Crop Production Costs And Returns, 2011, Clark Israelsen, Rob Lee, Don Snyder
All Current Publications
Sample costs and returns to establish and produce alfalfa hay, barley, corn (silage), and wheat (dry or irrigated) under wheel line irrigation in Cache County, Utah are presented in this publication.
Daggett County Crop Production Costs And Returns, 2011, Boyd Kitchen, Kynda Curtis, Don Snyder
Daggett County Crop Production Costs And Returns, 2011, Boyd Kitchen, Kynda Curtis, Don Snyder
All Current Publications
Sample costs and returns to establish and produce alfalfa hay and grass hay under pivot irrigation in Daggett County, Utah are presented in this publication.