Impact Of High-Input Production Practices On Soybean Yield,
2010
University of Kentucky
Impact Of High-Input Production Practices On Soybean Yield, Daniel L. Jordan
University of Kentucky Master's Theses
High-input management practices are often heavily marketed to producers to increase soybean [Glycine max (L) Merr.] yield in already high-yielding environments. Field research was conducted in three locations within 6 states (Arkansas, Iowa, Kentucky, Louisiana, Michigan, and Minnesota) in 2009 to determine the effect of seed treatment, inoculant, foliar fungicide, additional soil fertility beyond state recommendations, foliar fertilizer, increased population over state recommendations, and narrow row spacing on yield. The high-input system (combination of the management practices) yielded higher than standard-input system (University recommended management practices) in only 8 of the 18 locations. Narrow rows, in both the high …
Implementing Deep Drainage To Reduce Salinity In The Date Creek Catchment, South West Western Australia,
2010
Department of Primary Industries and Regional Development, Western Australia
Implementing Deep Drainage To Reduce Salinity In The Date Creek Catchment, South West Western Australia, Derk Bakker, John P. Collins, Justin Hardy
Resource management technical reports
No abstract provided.
Toxin-Nutrient Interactions Influence Diet Selection,
2010
Utah State University
Toxin-Nutrient Interactions Influence Diet Selection, Usu Extension
All Current Publications
Given a choice herbivores prefer foods that are high in nutrients and low in toxins. Nevertheless, plants high in toxins are common on rangelands.
Rna Interference As A Method For Target-Site Screening In
The Western Corn Rootworm, Diabrotica Virgifera Virgifera,
2010
University of Nebraska-Lincoln
Rna Interference As A Method For Target-Site Screening In The Western Corn Rootworm, Diabrotica Virgifera Virgifera, Analiza P. Alves, Richard W. Beeman, Marce D. Lorenzen, John E. Foster, Blair D. Siegfried
Department of Entomology: Faculty Publications
To test the efficacy of RNA interference (RNAi) as a method for target-site screening in Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae) larvae, genes were identified and tested for which clear RNAi phenotypes had been identified in the Coleopteran model, Tribolium castaneum. Here the cloning of the D. v. vergifera orthologs of laccase 2 (DvvLac2) and chitin synthase 2 (DvvCHS2) is reported. Injection of DvvLac2-specific doublestranded RNA resulted in prevention of post-molt cuticular tanning, while injection of DvvCHS2- specific dsRNA reduced chitin levels in midguts. Silencing of both DvvLac2 and DvvCHS2 was confirmed by RT-PCR and quantitative RT-PCR. As in T. …
Nitrogen And Water Stress Impacts Hard Red Spring Wheat (Triticum Aestivum) Canopy Reflectance,
2010
South Dakota State University
Nitrogen And Water Stress Impacts Hard Red Spring Wheat (Triticum Aestivum) Canopy Reflectance, Cheryl L. Reese, Daniel Long, David Clay, Sharon Clay, Dwayne Beck
Agronomy, Horticulture and Plant Science Faculty Publications
Remote sensing has been proposed as a method for implementing an inseason spring wheat (Triticum aestivum) nitrogen (N) fertilization program. However, in fields where yields are influenced by both water and N stress, accurate N recommendations require that that the N and water stress signals be separated from each other. The objective of this study was to determine the impact of water and N stress on canopy reflectance and the ability of vegetation (NDVI, GNDVI, and BNDVI), and chlorophyll (CGreen and CRedEdge) indices to separate water and N stress. A split-plot experiment containing four blocks was conducted in 2002, 2003, …
Factors Affecting Adoption Of Cover Crops And Its Effect On Nitrogen Use By Producers,
2010
Louisiana State University and Agricultural and Mechanical College
Factors Affecting Adoption Of Cover Crops And Its Effect On Nitrogen Use By Producers, Gnel Gabrielyan
LSU Master's Theses
Increasing environmental concerns, population, and changing preferences of consumers towards healthier foods, and agronomic practices have all aligned to provide not only food and fiber, but also sustainable practices useful to the environment. Cover crops, a type of agricultural technology, provide private and public benefits, which are vital for organic production. The objectives of this study are: 1) Identify determinants of cover crop adoption; 2) analyze how nitrogen management varies by farm relative to adoption or non-adoption of this technology; 3) estimate the change in the probability of adoption of cover crops due to farm, regional and operator characteristics by …
Off-Farm Labor Supply By Farm Operators And Spouses: A Comparison Of Estimation Methods,
2010
Louisiana State University and Agricultural and Mechanical College
Off-Farm Labor Supply By Farm Operators And Spouses: A Comparison Of Estimation Methods, Mahesh Pandit
LSU Master's Theses
This thesis studies the off-farm labor supply decision of farm operators and their spouses in the United States. The data used in this study is from the Agricultural Resource Management survey, 2006. The objective of this study is twofold. First, to identify those factors that affect off-farm labor supply of farm operators and their spouses. In particular, this study investigates the impact of human capital of farm operators and spouses, personal, family, farm and location characteristics on labor allocation for on- and off-farm work. Empirical results indicate that farm operators’ and their spouses’ human capital are positively correlated with off-farm …
Analysis Of Consumer Preferences Toward 100% Fruit Juice Packages And Labels,
2010
Louisiana State University and Agricultural and Mechanical College
Analysis Of Consumer Preferences Toward 100% Fruit Juice Packages And Labels, Tatiana Bonilla
LSU Master's Theses
A national web survey was used to collected data from 253 households in the United States. Choice-based conjoint analysis was used to investigate which packaging and labeling attributes U.S. consumers consider important when choosing 100% fruit juices, and to estimate their willingness-to-pay. The attributes were packaging material, nutritional and health claims, presence of organic ingredients and whether the product was produced locally. Factor analysis, cluster analysis and a median split technique were used to identify market segments based on consumer preferences, behavior, and lifestyles. Differences between the segments were analyzed. A conditional logit model was used to estimate relative of …
Understanding The Economic Factors That Impact The Financial Health Of Local Governments,
2010
Louisiana State University and Agricultural and Mechanical College
Understanding The Economic Factors That Impact The Financial Health Of Local Governments, John David Barreca
LSU Master's Theses
The state of Louisiana has been hit by several severe hurricanes in recent years, and these disaster events have placed a financial burden on parish budgets. As such, local governments have been compelled to bear various cleanup and recovery costs in the short and long term. Therefore, this research sought to evaluate the factors that drive the variation in the financial health of local governments in Louisiana. This research made two contributions. The first contribution sought to develop a comprehensive measure of economic activity at the county level, and the second contribution used econometric methods to estimate the effect of …
Stochastic Trends In Crop Yield Density Estimation,
2010
Louisiana State University and Agricultural and Mechanical College
Stochastic Trends In Crop Yield Density Estimation, David I. Maradiaga
LSU Master's Theses
The search for improved methods of estimating crop yield density functions has been a theme of recurrent research interest in agricultural economics. Crop yield density functions are the statistical instrument that generates probability estimates of yield risk, and risk is an important decision variable in production agriculture. Recent research in crop yield density estimation suggests that yield probability estimates can be sensitive to the way yield data are filtered, and if true, then the search for an “adequate filter” is warranted. Such a quest is pursued in this study. It is proposed that unit-root tests can be used to identify …
Do The Poor Pay More For Healthy Food? An Empirical Economic Analysis,
2010
Louisiana State University and Agricultural and Mechanical College
Do The Poor Pay More For Healthy Food? An Empirical Economic Analysis, Patrick Lee Hatzenbuehler
LSU Master's Theses
The economic question this study seeks to answer is why healthier food products are less expensive in some stores than in others and in some neighborhoods than others. The analysis builds upon the precedent of past retail food pricing studies that have been conducted in Southeastern Louisiana and in other parts of the country, by further examining disparities of retail food costs across store formats and neighborhoods with different demographic compositions. It utilizes a comparison of a general market basket of food items used in past studies and a "representative" market basket that is regionally specific to Southeastern Louisiana to …
An Economic Analysis Of Cover Crops In Corn-Dominated Production Systems,
2010
Louisiana State University and Agricultural and Mechanical College
An Economic Analysis Of Cover Crops In Corn-Dominated Production Systems, Sukirti Nepal
LSU Master's Theses
A survey data by Singer et al. (2007) was used to study the factors affecting the adoption of cover crops by the producers at the Corn Belt area of the United States. Data was collected from four states: Illinois, Indiana, Iowa, and Minnesota. Two binomial logit models were used for the econometric analysis. The first logit model was used to observe the factors affecting the adoption of cover crops by the producers. The second logit model was used to analyze the factors affecting the adoption of cover crops by producers in recent years, specifically, in past five years. The result …
Value Of Clearfield Rice: An Agronomic And Economic Approach,
2010
Louisiana State University and Agricultural and Mechanical College
Value Of Clearfield Rice: An Agronomic And Economic Approach, Tyler Paul Carlson
LSU Master's Theses
Field studies were conducted in Crowley, Louisiana and Stoneville, Mississippi in drill seeded rice to evaluate weed control, yield, and economical returns with imazethapyr programs. Red rice (Oryza sativa) and barnyardgrass (Echinochloa crus-galli) was evaluated with imazethapyr applied alone at various rates and application timings. Imazethapyr, averaged across rate, controlled red rice 89% and barnyardgrass 90% when the initial application of imazethapyr was applied at emergence followed by (fb) a second application of imazethapyr two weeks after the initial application. While imazethapyr, averaged across timing, showed no differences for red rice and barnyardgrass control. Yield and economical returns were maximized …
The Adoption Of Best Management Practices In The Louisiana Crawfish Industry,
2010
Louisiana State University and Agricultural and Mechanical College
The Adoption Of Best Management Practices In The Louisiana Crawfish Industry, Narayan P. Nyaupane
LSU Master's Theses
Agricultural production can have result in environmental deterioration in cases where proper management practices have not been implemented. Louisiana, one of the tropical states, has a significant agricultural base with more than 1,600 farmers raising crawfish. Large volumes of waste water containing environmental pollutants result significant environmental problem in the state. Voluntary adoption of a number of best management practices (BMPs) that are considered to be environmentally and economically beneficial is encouraged in Louisiana. The major objectives of this study are to investigate farmer adoption of 18 selected Natural Resources Conservation Service (NRCS) cost share eligible BMPs and the reasons …
Analysis Of Media Agenda-Setting Effect On Consumer Confidence In The Safety Of The U.S. Food System Across Consumer Segments,
2010
Louisiana State University and Agricultural and Mechanical College
Analysis Of Media Agenda-Setting Effect On Consumer Confidence In The Safety Of The U.S. Food System Across Consumer Segments, Abhishek Bhagwat Bharad
LSU Master's Theses
Recent food recalls and food scares in the United States have increased consumers’ risk perceptions about food borne illness and decreased their confidence in the safety of the U.S. food supply. Results from a continuous tracking of consumer confidence and media coverage of food safety events over a 67 week period between May 2008 and August 2009 are reported in the study. Factor analysis is performed on consumer characteristic statements to identify seven factors. Factor scores for these seven factors are used as inputs in a consumer segmentation procedure. A two step segmentation approach, hierarchical cluster analysis followed by partition …
Adoption Of Breeding Technologies In The U.S. Dairy Industry And Their Influences On Farm Profitability,
2010
Louisiana State University and Agricultural and Mechanical College
Adoption Of Breeding Technologies In The U.S. Dairy Industry And Their Influences On Farm Profitability, Aditya Raj Khanal
LSU Master's Theses
Current trends in the U. S. dairy industry show an increase in milk cows per farm and milk production per cow, though the total number of milk cows in the industry is declining. This increase in productivity is attributed to advancements and adoption of modern dairy technologies. Breeding technologies are one of the important components of this structural change. This study analyzed the factors affecting the adoption of modern breeding technologies such as artificial insemination, embryo transplants, and sexed semen, and the impact of these technologies on farm productivity and profitability. Results of a bivariate probit model with selection showed …
Determination Of The Economic Optimal Cycle Length For Major Sugarcane (Saccharum Spp.) Varieties In Louisiana,
2010
Louisiana State University and Agricultural and Mechanical College
Determination Of The Economic Optimal Cycle Length For Major Sugarcane (Saccharum Spp.) Varieties In Louisiana, Juan Steer Nunes
LSU Master's Theses
The general objective of the study was to determine the economically optimal crop cycle length for major sugarcane varieties currently being produced in Louisiana. The specific objectives of the project included the specification of the mathematical acreage relationships which directly impact the production of a vegetatively propagated perennial crop in a whole farm context; the development of producer decision rules to be used to determine breakeven sugar levels on third stubble sugarcane crops for major varieties in the state; the evaluation of the impact of changes in production factors on developed crop replacement rules; and the optimal cycle length for …
The Returns And Volatility Of Agribusiness Stocks: How Do They Measure Up To Non-Agribusiness Stocks?,
2010
Louisiana State University and Agricultural and Mechanical College
The Returns And Volatility Of Agribusiness Stocks: How Do They Measure Up To Non-Agribusiness Stocks?, Benjamin Michael Clark
LSU Master's Theses
Little literature exists that analyzes the historical risk and return associated with investing in the US agricultural sector. However, several observable trends have recently made investing in the US agricultural sector an area of interest among investors. Stock price indexes are a commonly used tool for summarizing the historical performance of a specific sector. A market-capitalization weighted stock price index is created to represent the largest US agribusiness firms since 1970, using the US Census Standard Industrial Classification system and the Economic Research Service’s definition of agribusiness. Geometric returns, standard deviation, Sharpe Ratio, and beta values are calculated for one, …
An Economic Analysis Of The Costs Of Alternative Sugarcane Fallow Weed Control Programs,
2010
Louisiana State University and Agricultural and Mechanical College
An Economic Analysis Of The Costs Of Alternative Sugarcane Fallow Weed Control Programs, José Rodolfo Mite Cáceres
LSU Master's Theses
Economic research was conducted to present estimates of costs per acre associated with fallow sugarcane weed control programs for Louisiana in 2010. The 2010 projected costs are associated with the various phases of sugarcane fallow using different machinery, implements, and weed control practices followed by most growers in the main sugarcane production area of Louisiana. For bermudagrass and johnsongrass weed control treatments, the herbicides applied were Roundup Original Max at 46 oz/A, generic glyphosate at 64 oz/A, DuPont K4 60DG, Trifluralin 4EC at 4 qt/A, and EPTC at 3.5 pt/A. Purple nutsedge weed control treatments included Roundup Original Max at …
Century-Old Mystery Of Puccinia Striiformis Life History Solved With The Identification Of Berberis As An Alternate Host,
2010
USDA-ARS
Century-Old Mystery Of Puccinia Striiformis Life History Solved With The Identification Of Berberis As An Alternate Host, Yue Jin, Les J. Szabo, Martin Carson
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The life history of Puccinia striiformis remains a mystery because the alternate host has never been identified. Inoculation of grasses using aeciospores from naturally infected Berberis chinensis and B. koreana resulted in infection on Poa pratensis, producing uredinia typical of stripe rust caused by P. striiformis. Analyses using real-time polymerase chain reaction and DNA sequence confirmed the rust fungus as P. striiformis. Pycnia and aecia were produced on B. chinensis, B. holstii, B. koreana, and B. vulgaris after inoculation using germinating telia of P. striiformis f. sp. tritici. Wheat inoculated with aeciospores from B. chinensis resulted in …
