Agriculture Commons^™

Aphid Natural Enemies And Biological Control, Ron Patterson, Ricardo Ramirez

All Current Publications

This fact sheet lists common arthropods of Utah that eat aphids. It will help identify those arthropods and will describe management practices that aid in their success. Many of these predators will eat other plant damaging insects in addition to aphids.

Novel And Transgressive Salinity Tolerance In Recombinant Inbred Lines Of Rice Created By Physiological Coupling-Uncoupling And Network Rewiring Effects, Isaiah C.M. Pabuayon, Ai Kitazumi, Kevin R. Cushman, Rakesh Kumar Singh, Glenn B. Gregorio, Balpreet Dhatt, Masoud Zabet-Moghaddam, Harkamal Walia, Benildo G. De Los Reyes

Department of Agronomy and Horticulture: Faculty Publications

The phenomenon of transgressive segregation, where a small minority of recombinants are outliers relative to the range of parental phenotypes, is commonly observed in plant breeding populations. While this phenomenon has been attributed to complementation and epistatic effects, the physiological and developmental synergism involved have not been fully illuminated by the QTL mapping approach alone, especially for stress adaptive traits involving highly complex interactions. By systems-level profiling of the IR29 × Pokkali recombinant inbred population of rice, we addressed the hypothesis that novel salinity tolerance phenotypes are created by reconfigured physiological networks due to positive or negative coupling-uncoupling of developmental …

Strategically Making Your Farm Or Ranch Profitable, Matthew Stockton

Cornhusker Economics

The word ‘strategically’ sounds sophisticated and is often used to imply the presence of some secret idea that will always work to increase profit. The word seems to suggest that to be strategic requires special knowledge or an almost magical method of accomplishing something. In truth, however, strategy is simply a plan of action or policy designed to achieve something desired, and it can be complex or basic, as each occasion requires. Strategy can be good or bad, a successful endeavor or a disaster. The key to good strategy is to have clear understanding of desired out-come, as well as …

European Aspen With High Compared To Low Constitutive Tannin Defenses Grow Taller In Response To Anthropogenic Nitrogen Enrichment, Franziska Bandau, Benedicte Riber Albrectsen, Kathryn M. Robinson, Michael J. Gundale

Aspen Bibliography

Boreal forests receive nitrogen-(N)-enrichment via atmospheric deposition and industrial fertilization. While it is known that N-enrichment can intensify interactions with natural antagonists, it remains poorly understood how genetic variability in plant defense chemistry can affect biotic interactions and height growth in N-enriched environments. We grew replicates of five low- and high-tannin Populus tremula genotypes, respectively, under three N-treatments (ambient, 15, and 150 kg N ha−1 yr−1). We assessed shoot blight occurrence (i.e. symptoms caused by Venturia fungi) during four growing seasons, and tree height growth during the same period. Damage by Venturia spp. increased with N-addition during all years, likely …

Analysis Of Repeated Milk Yields And Composition Traits By Mixed Models For Crossbred Holstein Friesian Dairy Cows, Ewonetu Senbeta, Kefelegn Kefenie, Adane Abebe

Tanzania Journal of Science

This study evaluated the effects of milking month, milking time, and lactation stage on milk yield and composition traits of crossbred dairy cows. Twelve crossbred Holstein Friesian cows with the same parity were purposefully selected and categorized into three groups; each consisting of four. All cows were individually managed for 120 days. Milk yield record was done every day for the morning and evening time whereas milk samples were taken every fifteen-day intervals. Data collected were analysed by PROC MIXED procedure of SAS 9.4. The “morning milkings” in all milking months showed the highest variations for “milk yield” whereas the …

Grocery Food Taxes And U.S. County Obesity And Diabetes Rates, Lingxiao Wang, Yuqing Zheng, Steven Buck, Diansheng Dong, Harry M. Kaiser

Agricultural Economics Faculty Publications

BACKGROUND: Grocery food taxes represent a stable tax revenue stream for state and municipal government during times of adverse economic shocks such as that observed under the coronavirus disease 2019 (COVID-19) pandemic. Previous research, however, suggests a possible mechanism through which grocery taxes may adversely affect health. Our objectives are to document the spatial and temporal variation in grocery taxes and to empirically examine the statistical relationship between county-level grocery taxes and obesity and diabetes.

METHODS: We collect and assemble a novel national dataset of annual county and state-level grocery taxes from 2009 through 2016. We link this data to …

Payroll Protection Program Increases Eligibility, Marilyn R. Schlake, Austin Duerfeldt

Cornhusker Economics

As the COVID-19 pandemic continues to impact business-es across the country, the Small Business Administration (SBA) has issued new guidelines for the Payroll Protection Program (PPP) in 2021. These guidelines increase the eligibility rules for self-employed, sole proprietors and 1099 workers, including agricultural producers, that allow them to apply and access the PPP Loan funds.

Potential Control Of The Seed Bug Elasmolomus Pallens By Entomopathogenic Fungi And Assessment Of Its Risks For The Transmission Of Aflatoxins, Fidelis Umaru Fredrick

Student Works (2020-2029)

Elasmolomus pallens is a post-harvest insect pest which causes yield loss of peanuts and sesame in Africa and Asia. In view of mitigating the use of synthetic insecticides on the environment, this study evaluated the potential of entomopathogenic fungi for the biological control of E. pallens and assessment of the bug rostrum for its risks of aflatoxins transmission. Adults bugs were dipped briefly in different conidial concentrations of the isolates and observed at 25 ± 2 ℃, 80 ± 10 RH and 14: 10 L: D for 10 days. Dose-response bioassay employed dipping and filter paper methods for both 0.05% …

Economic Sustainability And Multiple Risk Management Strategies: Examining Interlinked Decisions Of Small American Farms, Sudip Adhikari, Aditya R. Khanal

Agricultural and Environmental Sciences Faculty Research

Economic viability of small farms and farming businesses depends on multiple factors. These farms have limited production and financial resources to maintain their operation. Therefore, to sustain farming, adopting appropriate risk management strategies is a pivotal decision for small farmers. We surveyed Tennessee’s small farms and utilized multivariate probit models to study factors influencing the adoption of various risk management strategies. Our findings suggest that the decisions related to the adoption of risk management strategies are significantly interlinked. Along with factors representing the operator’s age, education, and farm operator’s income and land holdings, we also found that the government incentives …

Weather And Climate Summary And Forecast: February 2021 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for February 2021. It includes forecast information specific to the Pacific Northwest and the western United States, as well as forecast information for other portions of the United States and abroad.

76-Year Decline And Recovery Of Aspen Mediated By Contrasting Fire Regimes: Long-Unburned, Infrequent And Frequent Mixed-Severity Wildfire, Cerena J. Brewen, John-Pascal Berrill, Martin W. Ritchie, Kevin Boston, Christa M. Dagley, Bobette Jones, Michelle Coppoletta, Coye L. Burnett

Aspen Bibliography

Quaking aspen (Populus tremuloides) is a valued, minor component on northeastern California landscapes. It provides a wide range of ecosystem services and has been in decline throughout the region for the last century. This decline may be explained partially by the lack of fire on the landscape due to heavier fire suppression, as aspen benefit from fire that eliminates conifer competition and stimulates reproduction through root suckering. However, there is little known about how aspen stand area changes in response to overlapping fire. Our study area in northeastern California on the Lassen, Modoc and Plumas National Forests has …

Nebraska Land Link, Jessica Groskopf, Allan Vyhnalek

Cornhusker Economics

Nebraska Extension is pleased to announce that the Nebraska Land Link is open for applications. Nebraska Land Link connects new or beginning farmers and ranchers seeking land with landowners who wish to lease, sell or gift their land to a new or beginning farmer or rancher. The web-based enrollment and information for the program can be found at https://farm.unl.edu/landlink

The Feasibility Of Renewable Natural Gas In New Jersey, Anneliese Dyer, Amelia Christine Miller, Brianna Chandra, Juan Galindo Maza, Carley Tran, Justin Bates, Vicky Olivier, Amy Tuininga

PSEG Institute for Sustainability Studies Publications

With traditional natural gas being one of the top options for heating in the United States and the present threat of climate change, there is a demand for an alternative clean fuel source. A Renewable Natural Gas Implementation Decision-Making Conceptual Model was created to provide a framework for considering the feasibility of renewable natural gas (RNG) projects and applied to New Jersey, specifically investigating landfills and wastewater treatment plants (WWTPs). Data from the US EPA’s Landfill Methane Outreach Program and New Jersey’s Department of Environmental Protection Sewage Sludge databases were used to identify seven landfills and 22 WWTPs as possible …

Cropping System Partially Offsets Tillage-Related Degradation Of Soil Organic Carbon And Aggregate Properties In A 30-Yr Rainfed Agroecosystem, Virginia L. Jin, Brian J. Wienhold, Maysoon M. Mikha, Marty Schmer

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Soil tillage increases the susceptibility of agricultural soils to erosion and organic carbon losses, but tillage effects could be mitigated through other management practices such as crop rotation. Here, we evaluated the 30-year impacts of tillage intensity and cropping system on surface soil bulk density, nutrient availability, dry aggregate size distribution, and water-stable aggregation. This study was established in 1980 in eastern Nebraska USA, and included six tillage treatments of varying intensity (no-till, ridge till, disk till, subsoil rip, chisel plow, moldboard plow) and four crop rotation treatments (continuous soybean [Glycine max (L.) Merr.]; soybean-corn [Zea mays L.]; corn-soybean, continuous …

Evaluation Of Soil Moisture Sensing Technologies In Silt Loam And Loamy Sand Soils: Assessment Of Performance, Temperature Sensitivity, And Site- And Sensor-Specific Calibration Functions, K. Sharma, Sibel Irmak, M. S. Kukal, M. C. Vuran, Amit J. Jhala, Xia Qiao

Department of Agronomy and Horticulture: Faculty Publications

Reliable soil moisture information is vital for optimal irrigation management, farm-level agronomic decision-making, hydrologic studies, and cropping systems modeling. A wide range of soil moisture sensing technologies is commercially available, but their performance must be evaluated for diverse conditions of use. In this research, we investigated nine soil moisture sensors based on time-domain reflectometry, capacitance, and electrical resistance principles in production field conditions with two installation orientations, i.e., vertical (V) and horizontal (H), in two soils (silt loam and loamy sand) and two growing seasons (2017 and 2018). Performance parameters deduced from the 2017 datasets revealed that sensor type and …

A Bibliometric Analysis Of Plant Disease Classification With Artificial Intelligence Based On Scopus And Wos, Shivali Amit Wagle, Harikrishnan R

Library Philosophy and Practice (e-journal)

The maneuver of Artificial Intelligence (AI) techniques in the field of agriculture help in the classification of diseases. Early prediction of the disease benefits in taking relevant management steps. This is an important step towards controlling the disease growth that will yield good quality products to fulfill the global food demand. The main objective of this paper is to study the extent of research work done in this area of plant disease classification. The paper discusses the bibliometric analysis of plant disease classification with AI in Scopus and Web of Science core collection (WOS) database in analyzing the research by …

Abrasive Weeding As A Vehicle For Precision Fertilizer Management In Organic Vegetable Production, Tran Kim Ngan Luong, Frank Forcella, Sharon A. Clay, Michael S. Douglass, Sam E. Wortman

Agronomy, Horticulture and Plant Science Faculty Publications

Abrasive weeding is a nonchemical weed control tactic that uses small, gritty materials propelled with compressed air to destroy weed seedlings. Organic fertilizers have been used successfully as abrasive grits to control weeds, but the goal for this study was to explore the effects of fertilizer grit, application rates, and background soil fertility on weeds, plant available nitrogen (N) uptake, and crop yield. Field trials were conducted in organic ‘Carmen’ sweet red pepper (Capsicum annuum) and organic ‘Gypsy’ broccoli (Brassica oleracea var. italica) and treatments included organic fertilizer grit (8N–0.9P–3.3K vs. 3N–3.1P–3.3K), grit application rates (low …

Fire Alters Plant Microbiome Assembly Patterns: Integrating The Plant And Soil Microbial Response To Disturbance, Nicholas C. Dove, Dawn M. Klingeman, Alyssa A. Carrell, Melissa A. Cregger, Christopher W. Schadt

Aspen Bibliography

• It is increasingly evident that the plant microbiome is a strong determinant of plant health. While the ability to manipulate the microbiome in plants and ecosystems recovering from disturbance may be useful, our understanding of the plant microbiome in regenerating plant communities is currently limited.
• Using 16S ribosomal RNA (rRNA) gene and internal transcribed spacer (ITS) region amplicon sequencing, we characterized the leaf, stem, fine root, rhizome, and rhizosphere microbiome of < 1-yr-old aspen saplings and the associated bulk soil after a recent high-intensity prescribed fire across a burn severity gradient.
• Consistent with previous studies, we found that soil microbiomes are responsive to fire. We extend these findings by showing that certain plant tissue microbiomes also change in response to …

Nebline, February 2021

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Staying active in winter

Nebraska Extension’s Physical Activity Resources

At-Home Workout: No Equipment Needed

Recipe of the Month

2021 Flower All-America Selections Winners

Garden Guide Things to Do This Month

ProHort Lawn & Landscape Update

Know Your Bugs Before You Treat: Bed vs. Bat

More Than Counting: Incorporating Math Into Daily Interactions With Preschoolers

Pesticide Applicator Trainings

Total Coliform Bacteria in Drinking Water

HEART OF 4-H Volunteer Award, Laura Cook

Meet 2020–2021 4-H Teen Council

4-H Club Gives Youth With Special Needs Opportunity to Show Lambs

Pick-A-Pig Club Accepting New Members

Companion Animal Webinar Series

4-H Rabbit Show, March 20 …

Potential Benefits Of Rcep On The Philippines: Accelerating Recovery Through Trade And Other Economic Opportunities, Caesar Cororaton, Marites Tiongco, Arlene B. Inocencio

Angelo King Institute for Economic and Business Studies (AKI)

The Philippines, as a member of ASEAN, is part of the RCEP, which is the world’s largest trading block in terms of population and GDP. RCEP was signed on November 15, 2020, by 15 member countries. This policy note discusses the potential effects of RCEP on the Philippines. Using a global CGE model calibrated to the most recent GTAP 10 database, the results indicate that the Philippines will benefit from higher exports, lower consumer prices, higher factor prices, and factor incomes of households. Among the Philippine sectors, the largest positive effects are observed in electronic equipment. Interestingly, the impact on …