Agriculture Commons^™

Use Of An Active Canopy Sensor Mounted On An Unmanned Aerial Vehicle To Monitor The Growth And Nitrogen Status Of Winter Wheat, Jie Jiang, Zeyu Zhang, Qiang Cao, Yan Liang, Brian Krienke, Yongchao Tian, Yan Zhu, Weixing Cao, Xiaojun Liu

Department of Agronomy and Horticulture: Faculty Publications

Using remote sensing to rapidly acquire large-area crop growth information (e.g., shoot biomass, nitrogen status) is an urgent demand for modern crop production; unmanned aerial vehicle (UAV) acts as an effective monitoring platform. In order to improve the practicability and efficiency of UAV based monitoring technique, four field experiments involving different nitrogen (N) rates (0–360 kg N ha⁻¹ ) and seven winter wheat (Triticum aestivum L.) varieties were conducted at different eco-sites (Sihong, Rugao, and Xinghua) during 2015–2019. A multispectral active canopy sensor (RapidSCAN CS-45; Holland Scientific Inc., Lincoln, NE, USA) mounted on a multirotor UAV platform was used …

Within-Field Yield Prediction For Sugarcane And Rice Focused On Precision Agriculture Applications, Felippe Hoffmann Silva Karp

LSU Master's Theses

Food and energy security are two main topics when it comes to the on-growing world population. Rice and sugarcane play an important role in this scenario since sugarcane can be used for energy production and rice is one of major staple cereals. In this scenario, Precision Agriculture (PA) management strategies aims to improve productivity, efficiency, profitability, and sustainability, and can help agriculture to fulfill the needs of the growing population in a sustainable way. However, yield maps are essential for PA, but its adoption is still very low. Thus, the main objective of this study was to evaluate the potential …

Perspectives On Low Temperature Tolerance And Vernalization Sensitivity In Barley: Prospects For Facultative Growth Habit, Maria Munoz-Amatriain, Javier Hernandez, Dustin Herb, P Stephen Baenziger, Anne Marie Bochard, Flavio Capettini, Ana Casas, Alfonso Cuesta-Marcos, Claus Einfeldt, Scott Fisk, Amelie Genty, Laura Helgerson, Markus Herz, Gongshe Hu, Ernesto Igartua, Ildiko Karsai, Toshiki Nakamura, Kazuhiro Sato, Kevin Smith, Eric Stockinger, William Thomas, Patrick Hayes

Department of Agronomy and Horticulture: Faculty Publications

One option to achieving greater resiliency for barley production in the face of climate change is to explore the potential of winter and facultative growth habits: for both types, low temperature tolerance (LTT) and vernalization sensitivity are key traits. Sensitivity to short-day photoperiod is a desirable attribute for facultative types. In order to broaden our understanding of the genetics of these phenotypes, we mapped quantitative trait loci (QTLs) and identified candidate genes using a genome-wide association studies (GWAS) panel composed of 882 barley accessions that was genotyped with the Illumina 9K single-nucleotide polymorphism (SNP) chip. Fifteen loci including 5 known …

Florpyrauxifen-Benzyl Activity And Use In Louisiana Rice Production, Samer Youssef Rustom Jr.

LSU Doctoral Dissertations

Abstract

Field studies were conducted in 2018 at two locations at the H. Rouse Caffey Rice Research Station (RRS) to evaluate the activity of titrated rates of florpyrauxifen-benzyl on aquatic weeds. Florpyrauxifen-benzyl was applied at 0, 3.6, 7.3, 11, 14.6, 18.3, 22, 25.6, and 29.5 g ai ha^-1into 91-cm diameter galvanized rings containing ducksalad, alligatorweed, cattail, creeping water primrose, grassy arrowhead, and pickerelweed. Ducksalad control was 89 to 99% when treated with all rates of florpyrauxifen at 11 to 29.5 g ha^-1; however, control was reduced to 51 to 79% when treated with rates lower than …

Evaluating The Impact Of Common Fertilizers On Soil Properties After Planting Tomatoes And Marigolds, Rachel Stuckey, Iin Handayani

Scholars Week

There are many name brand fertilizers that are used today in gardening in the state of Kentucky. Due to the standardization of name brand fertilizer production in factories, this can cause the fertilizers to compromise the nutrients of soil, while all-natural fertilizers are seen as better quality for the consumers, plants and soils. Alaska, Miracle Grow, Monty’s, Pure Gold, Tiger Bloom are the top five fertilizers sold in the state of Kentucky. This study aims to determine the impact of five top commercial fertilizers on soil quality indicators including organic matter, acidity level and moisture content. These fertilizers were applied …

Finding Aid For The Thomas G. Abernethy Collection (Mum00001)

Archives & Special Collections: Finding Aids (alphabetical)

Thomas G. Abernethy represented Mississippi in the U.S. House of Representatives between 1943 and 1973. The 454 boxes in this collection contain files created during Abernethy's tenure in office.

Distribution Of Antibiotic-Resistant Enterobacteriaceae Pathogens In Potable Spring Water Of Eastern Indian Himalayas: Emphasis On Virulence Gene And Antibiotic Resistance Genes In Escherichia Coli, Ashish Kumar Singh, Saurav Das, Santosh Kumar, Varsha Rani Gajamer, Ishfaq Nabi Najar, Yanchen D. Lepcha, Hare Krishna Tiwari, Samer Singh

Department of Agronomy and Horticulture: Faculty Publications

Every year millions of people die due to fatal waterborne diseases around the world especially in developing countries like India. Sikkim, a northeastern state of India, greatly depends on natural water sources. About 80% of the population of Sikkim depends on natural spring water for domestic as well as agricultural use. Recent waterborne disease outbreaks in the state raises a concerning question on water quality. In this study, we analyzed water quality especially for the detection of Enterobacteriaceae members from four districts of the state. Isolation with selective culture media techniques and taxonomic characterization of Enterobacteriaceae bacteria with 16S rRNA …

Seasonal Forecast Based Preharvest Hedging, Eric D. Hunt, Cory Walters, Toni Klemm, Iyore Eronmwon

Cornhusker Economics

Given the immense effect of weather on agriculture, skillful weather forecasts are of importance to agricultural producers for effective decision making. Weather forecasts affect operational decisions such as whether or not to irrigate (where applicable), when to apply fertilizer, when to spray herbicide and pesticide, and certainly the timing of planting and harvesting. At the seasonal time scale, say in the spring, just before planting, weather forecasts may be used for strategic decision making on outcomes, say from preharvest hedging (hereafter referred to hedging), that will not be realized until the fall or harvest. Historically, the lack of skill in …

Chicoreus Brunneus Seashells As A Catalyst In Rice Bran Biodiesel Production, Hoora Mazaheri

Student Works (2020-2029)

Environmental pollution and the declining global supply of accessible fossil fuels are the key drivers to search for alternative energy sources. This study focused on developing a “green” and sustainable heterogenous calcium oxide (CaO) catalyst from Chicoreus Brunneus shells for biodiesel production from rice bran oil (RBO). Coastal people frequently collect these shells for food and shell crafts. Thus, by using seashell wastes, cost-efficient catalysts can be achieved for the biodiesel industry. The shells were calcinated, washed and dried to produce pure CaO catalyst. After that, CaO was converted into calcium methoxide (Ca(OCH3)2) and followed by loading onto zeolite support …

Boxwood Dieback: Molecular Detection, In-Vitro Fungicide Efficacy, And Host Susceptibility For Managing A New Emerging Disease Caused By Colletotrichum Theobromicola, Harleen Kaur

LSU Master's Theses

Boxwood (Buxus spp. L) is one of the most common and widely planted perennial ornamentals in both home gardens and commercial landscapes. Grown for its evergreen, dark green foliage, boxwood cultivation dates back to 4000 BC in Egypt. Although considered hardy, boxwood is susceptible to several plant pathogens. Recently reported boxwood dieback, a fungal disease caused by Colletotrichum theobromicola, has been spreading at an alarming rate within the United States. Boxwood dieback consists of symptoms that resemble to those caused by Phytophthora root rot, Volutella blight, and some abiotic disorders and can be easily misdiagnosed in nurseries and …

Inoculation Of Grass-Cyclingcompost With N2-Fixing Bacteria, Merfat Taher Ben Mahmoud

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

Inoculation of grass-cyclingcompost with N2-fixing bacteria may improve its quality by increasing total N and available P. Compost was inoculated with Azotobacter,Burkholderia and Azospirillum sp. each alone and all three together. Numbers of all N2-fixing bacteria in compost declined from an initial population of (5 x 105 cells/ g) during incubation. The population of Azotobacter declined to approximately (2 x 102cells/g) and the population of Burkholderia and Azospirillum declined to approximately (9 x103 and 4x 104 cells/ g) respectively, at day 40. Inoculation with N2-fixing bacteria increased acetylene reduction, total N by 5–15% and available P by 20–30% in comparison …

Using Stable Isotope ( 13c) And C/N Ratio To Study The Effects Of Climate Change On Olive Trees, Rezq Basheer-Salimia

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

In this research, the impact of some climate change effects on the olive tree was studied. Specifically, the research investigated the impact of the lack of water and drought on the physiology of olive trees using stable carbon isotopic (Delta13C) and C/N ratios. Four olive cultivars including Souri, Roomi, Improved-Nabali, and Nasouhi, planted in three geographical areas with different rainfall patterns were used. These locations are Yatta/Hebron area (dry and low rainfall area with less than 300 mm/year), Jab’a/Jerusalem area (semi-dry and medium rainfall zone), in addition to the Kufer Ra’e/Jenin area (area of high rainfall, higher than 550 mm/year). …

The Control Of The Creamy Mold Disease On Tomato Fruits Using The Natural Alternatives To Pesticides, Nwara Mohamed

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The results of the laboratory experiments showed that the addition of chemical substances, such as calcium chloride, pure sodium, natural sodium chloride, acetic acid, and propolis extract (bee glue) compared with diethane -45 m fungicide to the nutrient medium of dextrose agar leads to the reduction in the mycelium growth of Geotrichum candidum. In addition, any increase in the concentration of these substances leads to a significant reduction in the disease rate of the creamy mold disease on tomato fruits of Mona’s variety tested at 4°C. The percentage of effect of this treatment was (93%, 76%, 80%, 74%) respectively, whereas …

A Survey And Identification Of Plant Parasitic Nematodes Associated With Wild Olive Trees Oleaeuropaeavar.Oleaster In El Jabelalakther, Libya, Mohamed Adam

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The survey was carried out during 2013 – 2014, covering EljabelAlakther region in Libya. A total of 17 locations were included in this survey. To determine the frequency and abundance of plant-parasitic nematodes associated with Oleaeuropaeavaroleaster, a total of 68 composite soil samples were collected from the seventeen different areas in this region. Nematodes were extracted by sieving, Bearmanfunnel and root soaking, and then identified to the genus level. The results indicated that the common eight genera of plant-parasitic nematodes were identified as : Aphelenchus spp., Aphelenchiodes spp., Helicotylenchus spp., Pratylenchus spp. Paratylenchus spp., Tylenchorhynchus spp. Tylenchus spp., Xiphinemapachtaicum. Tylenchus …

Genetic Diversity Among Spilocaeaoleagina Isolates From Different Regions In Palestine, Fatema Kleef

Journal of the Arab American University مجلة الجامعة العربية الامريكية للبحوث

The peacock eye disease or the olive leaf spot caused by the fungus, Spilocaeaoleagina, is the most olive destructive disease in many olive growing regions worldwide. The disease causes yield losses of up to 20%. Infection with the fungus depends on the environmental conditions and varies according to the different regions as well as olive genotype. The aim of this work was to study the genetic variations between the isolates from different olive growing regions in Palestine. In this work, six S. oleagina isolates were collected from different regions in Palestine including Qalqilia, Nablus, Tulkarm, Ramallah, Jenin and Salfit. Pure …

Weather And Climate Summary And Forecast: November 2020 Report, Gregory V. Jones

Linfield University Wine Studies Reports

This report provides a summary of the weather and climate forecast for November 2020. 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.

Economic Contribution Of Agriculture And Food To Arkansas' Gross Domestic Product 1997-2019, Leah English, Jennie Popp, Wayne Miller

AAES Research Reports and Research Bulletins

Agricultural production, processing, and retail industries are major contributors to Arkansas’ GDP. Agriculture contributes to the state economy through direct agricultural production, value-added processing, and agricultural retail activities. The Agriculture and Food Sector, which is comprised of agricultural production, processing, and retail industries, promotes economic strength through various interactions with other industries. The use of non-agricultural goods and services as inputs into the agricultural sector promotes diversified growth in Arkansas’ economy and thus plays a vital role in maintaining economic stability throughout the state. This report 1) compares the relative size of the Agriculture and Food Sector in Arkansas with …

The Benefits Of The Arkansas Rice Check-Off Program, B. Peterson-Wilhelm, L. L. Nalley, A. Durand-Morat, A. Shew, R. Parajuli, G. Thoma

AAES Research Reports and Research Bulletins

As margins are reducing for agricultural producers there is a concerted effort to analyze all costs. One such cost for rice producers in Arkansas is their contribution to the Rice Check-off Program. This study analyzes the cost-benefit ratio of funds contributed by Arkansas rice producers and the holistic (both economic and environmental) benefits they receive. This study analyzes just five of the many programs the Rice Check-off Program invests in through the University of Arkansas System Division of Agriculture (UASDA) and suggests that every dollar invested generated an average return of $28.49 between 2002–2018 ($70.45 when ecosystem benefits are included). …

Citrus Pruning, Department Of Primary Industries And Regional Development, Western Australia

Horticulture factsheets

Pruning is the cultural practice involving the removal of tree branches and limbs designed to enhance the performance and productivity of trees.

Ideally this is best done after harvest to prevent unwanted fruit loss. With citrus, correct pruning can improve yields, fruit quality, and make managing trees easier.

A Novel Mutation Of The Narrow Leaf 1 Gene Adversely Affects Plant Architecture In Rice (Oryza Sativa L.), Prasanta K. Subudhi, Richard S. Garcia, Sapphire Coronejo, Teresa B. De Leon

Faculty Publications

Plant architecture is critical for enhancing the adaptability and productivity of crop plants. Mutants with an altered plant architecture allow researchers to elucidate the genetic network and the underlying mechanisms. In this study, we characterized a novel nal1 rice mutant with short height, small panicle, and narrow and thick deep green leaves that was identified from a cross between a rice cultivar and a weedy rice accession. Bulked segregant analysis coupled with genome re-sequencing and cosegregation analysis revealed that the overall mutant phenotype was caused by a 1395-bp deletion spanning over the last two exons including the transcriptional end site …

15N Fertilizer Recovery And Partitioning By Cover Crops Under Greenhouse Conditions, Kelsey L.H. Grueb, Trenton L. Roberts

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Cover crops have the potential to decrease residual-nitrogen (N) losses from agricultural soils by capturing and storing excess N between cash crops. This study was established to assess the effect of cover crop species and N rate on the accumulation and partitioning of biomass and ¹⁵N fertilizer by cover crops produced under controlled environmental conditions. Cereal rye (Secale cereale) and tillage radish (Raphanus sativus) cover crops were grown in monoculture and in a blend under greenhouse conditions in two soils. Urea enriched with ¹⁵N (3.0 atom %) was applied to cover crops at rates …

Characterizing Arbuscular Mycorrhizal Associations In Corn Inoculated With Soil From Till Or No-Till Farmlands, Catherine Defouw

Student Summer Scholars Manuscripts

Many crops have mutualistic arbuscular mycorrhizal fungi(AMF) associations that positively affect plant and soil health. AMF likely mitigates agricultural problems like topsoil depletion and compaction from tilling. The literature review on AMF associations under different practices showed the need for more studies. This project studied an AMF community's impact on soil quality and plant health in conventional till(CT) and no-till(NT) managed corn and soybean plants. Data was gathered from these fields in West MI, using field soil to inoculate greenhouse plants in normal/drought conditions. Three types of data were collected for each case: 1)AMF community via spore type and presence, …

Green Synthesis, Characterization, Antioxidant And Anticancer Activities Of Silver Nanoparticle Using Moringa Peregrina Leaf Extract, Khaled Saeed Al Baloushi

Theses

The sustainable green synthesis process for the development of environment-friendly, toxicant-free and biocompatible nanoparticles establishes important aspects in nanotechnology research. Even though; nanoparticles can be produced by either conventional physical and chemical or green synthesis, synthesizing nanoparticles using plant extracts as reducing and capping agents is acceptable. The benefits of plant extract mediated synthesis of silver nanoparticles comprise economic viability, quick synthesis, toxicity free, cost-effectiveness and large scale synthesis. In that way, the aqueous extract of Moringa peregrina leaves was used to synthesizes silver nanoparticles. The silver nanoparticles were characterized by various spectral studies including FT-IR, SEM, HR-TEM and XRD. …

Hyperspectral Properties Of Date Palm Trees (Phoenix Dactylifera L.), Mohamed Ali Saeed Ahmed Al Abdouli

Theses

The goal of this study is to classify the Date Palm varieties based on hyperspectral signature technology since it is difficult to identify the Date Palm cultivars without fruits. It will also help to obtain the hyperspectral signature for different types of date palm trees. Moreover, it also assists to determine the wavelength fingerprint of each cultivar and to recommend the best classification protocol differentiating among different cultivars based on spectral signature. Utilizing the Hyperspectral imaging technology precisely on the leaves of different Date Palm cultivars, thus facilitating identification of date palm cultivars without the fruits and make the spatial …

Critical Period Of Palmer Amaranth Removal And Effects Of Late Season Herbicide Applications On Palmer Amaranth Seed Production, José Henrique Scarparo De Sanctis

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Palmer amaranth is the most troublesome weed in agronomic crops in United States. Therefore, an integrated weed management approach is necessary to successfully manage this weed. The use of residual pre-emergence (PRE) herbicide applied at planting can delays the is one of the critical time of Palmer amaranth removal (CTPAR) giving farmers more time to prepare the weed control tactics and to preventing an unacceptable yield loss in soybean due to Palmer amaranth competition. Field experiments were conducted in 2018 and 2019 in a grower’s field infested with GR Palmer amaranth near Carleton, Nebraska, to determine the CTPAR in soybean …

Use Of Florpyrauxifen-Benzyl In Non-Flooded Rice Production Systems, Hannah Wright, Jason K. Norsworthy, Trenton L. Roberts, Robert C. Scott, Jarrod T. Hardke, Edward E. Gbur

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

The lack of a flood on rice (Oryza sativa) levees and in furrow-irrigated rice creates a favorable environment for terrestrial weeds like Palmer amaranth (Amaranthus palmeri S. Wats) to emerge and quickly overtake the crop for a longer portion of the year than in flooded rice culture. Florpyrauxifen-benzyl is a new auxin herbicide labeled for use in rice that has activity on both grasses and broadleaf weeds, as well as certain sedges. Field experiments were conducted to determine the efficacy of florpyrauxifen-benzyl in a non-flooded environment. Experiments were conducted in 2017 and 2018 at the Lon Mann …

Fostering Community Supported Agriculture In Utah, Kelsey Hall, Roslynn Brain

All Current Publications

This curriculum contains seven modules that describe the fundamentals of CSA, CSA marketing and outreach, CSA management, CSA pricing, CSA crop planning, legal concerns for CSA operations, and additional resources.

Determination Of Vitamin A And E In Fodder Concentrates And Cow Milk From The Region Of Gostivar, North Makedonia, Ilmije Vllasaku

UBT International Conference

Given the importance of oxidative effects on the health of dairy cows and their milk production, a study has been carried out on the concentration of antioxidants, vitamins A and E. The main objective of this research was to determinate the vitamins A and E in fodder concentrate and raw cow milk from the region of Gostivar, North Macedonia. The amount of vitamin A in fodder concentrate was 23.92 mcg/100 g, while the amount of vitamin E was 35.7mcg/kg. The amount of vitamin A in raw cow milk was 38.25 mcg/100 g, while the amount of vitamin E was 1.09 …

The Study Of Mashing Methods And Features Of Fermentations Products, Mybeshir Pajaziti, Kastriot Pehlivani

UBT International Conference

If mashing is conducted at 62 to 63˚C, a higher maltose composition is obtained, and the limit is of fermentation rate is higher. The wort, which has a lot of maltose ferments quickly, and the yeast is kept suspended for a long time. Continuous mashing at 62 to 64˚C yields beer with a high fermentation limit; if these temperatures are exceeded, and continuous mashing is carried out at 72 to 75˚C, beers with high dextrin content and low fermentation limit are obtained. To produce beer, primary and secondary fermentation are performed. During primary fermentation, the obtained sugars are converted into …

Looking At The Perceived Benefits Of Feeding Program In The Eyes Of The Stakeholders, Jane M. Candelanza, Sheena Mae T. Comighud

UBT International Conference

The study focused on the effects of school-based feeding program in the eyes of the stakeholders conducted on March 2019 to grades 1 to 6 beneficiary pupils, selected teachers, SBFP In-Charge and School Head of Mansagomayon Elementary School, District 4 of Sta. Catalina, Division of Negros Oriental. A descriptive design was used in this study whichd eemed appropriate in the context of this study since the researcher will describe the effectiveness of the SBFP as employed in the research locale. Additionally, Key informant interview with the selected representatives of the identified groups of stakeholders was conducted to provide qualitative support …