Digital Commons Network^™

Field Pea Response To Seeding Rate, Depth, And Inoculant In West-Central Nebraska, Strahinja V. Stepanovic, Charles Burr, Julie A. Peterson, Daran Rudnick, Cody F. Creech, Rodrigo Werle

West Central Research and Extension Center, North Platte

Increased market demand and larger adoption of field pea (Pisum sativum L.) in semiarid west-central Nebraska has provided opportunities to replace summer fallow and diversify crop rotations. As a relatively new crop, its response to different seeding practices has not been evaluated in this eco-region. Field pea grain yield response to seeding depth (25, 50, and 75 mm), inoculation with Rhizobium leguminosarum bv. viciae (yes and no rhizobia inoculant), and seeding rates (35, 50, 65, 75, 90, 105, and 120 plants m^–2) was investigated in 2015 and 2016 at five sites in Perkins County, NE. There were …

Analysis Of Potential Vermicompost Market In California, Jason Alan Thomas

Master's Theses

Vermicompost transforms agricultural waste into a high quality soil amendment, though market acceptance remains in its infancy. This study examines how growers’ willingness to pay for vermicompost is affected by grower’s crop, region, income per acre, knowledge level of vermicompost and compost, previous use of compost, and the willingness to pay for compost. The survey results pulled together 223 responses from California growers. It was discovered growers’ had less knowledge of vermicompost than compost but were willing to pay more for vermicompost. There was statistical difference amongst the responses. It was shown the market value per ton of vermicompost lies …

Nebline, June 2018

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Nebraska Pollinator Habitat Certification program

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

and other extension news and events

Soil Science In Precision Agriculture Lesson Plan, Carson Ellis Cronkright

Agricultural Education and Communication

Due to the increasing demands for the American agricultural industry to provide exceptional products at an increasing rate of production, as well as implement the practice of sustainable farming, it is imperative that more modern concepts be taught at a younger age (Ray, 2013). In order to inform students of advancements and the future of agriculture in the United States, curriculum and lesson plans should reflect this movement in industry in order to provide relevant information and maintain the highest quality of education possible. This project will provide a constructed lesson plan as one example of adopting more progressive methods …

Alternative Legume Species Can Reduce The Environmental Impacts Of Cattle, Elizabeth K. Stewart, Jennifer W. Macadam, Juan J. Villalba

All Current Publications

This fact sheet describes how alternative legume species can reduce the environmental impacts of cattle, grass versus legumes as livestock feed, benefits, and producer concerns.

Usu Student Organic Farm, Usu Student Organic Farm

USU Student Organic Farm Newsletter

We’ve got water! It was pretty funny when we finally got the irrigation system up and running Saturday evening of the holiday weekend, and the sky opened up. But we’re all really glad to have it ready for all those babies after a baking hot day! We’ve got the warm weather crops in, including squashes, tomatoes, tomatillos, eggplant and peppers, and melons will be planted tomorrow. We’re lovingly encouraging the tail end of the cool crops to make some food already - you may have noticed your bokchoi is delicious, and so did some cabbage fam­ily loving beetles, who are …

Mechanism Of Agaricus Brasiliensis Polysaccharides Inducing The No Release In Macrophages, Fang Leilei, Zhao Xiaotong, Zhang Yanqing, Xie Junbo

Food and Machinery

In this study, macrophage RAW264.7 cells were used to study the effect of Agaricus brasiliensis polysaccharide on NO release and iNOS expression, and the phosphorylation level of IκBα protein was detected to explore its mechanisms. All the studies in the present paper could provide a new theoretical basis for the development of A. brasiliensis polysaccharide. The results showed that different concentrations of the polysaccharides enhanced the NO release and the expression of iNOS protein in RAW264.7 cells in the same dose-dependent manner. In addition, A. brasiliensis polysaccharide at 25 μg/mL promoted the expression of p-IκBα protein in RAW264.7 cells, and …

Isolation, Identification And Biological Characteristics Of Intestinal Probiotics From The Longevity Crowd In Kashi, Xinjiang, Aymihri Mollam, Nusratgul Anwar, Busaram Abliz, Hamida Gulam, Osman Yimit

Food and Machinery

Lactic acid bacteria with probiotic function were isolated and screened from the intestinal track of longevity crowd in Kashi, Xinjiang, and their ability to triglyceride-reducing in vitro were investigated. The results showed that the fourteen of forty-one strains of lactic acid bacteria with high triglyceride-reducing rates, were higher than 15%. Among them, strain A2-1, A1-2, A3-1, A4-6 and A4-1 with higher survival rates s in artificial gastric juice at pH 3.0 were 63.22%，60.01%，58.94%，56.14%，50.29%, respectively. Moreover, the survival rates of these 5 strains in MRS broth with 1, 3 and 5 g/L bile salt were also relatively high, and the survival …

Differences Of The Properties In Three Kinds Of Zanba Powder By Layered Grinding And Its Correlation Analysis, Ma Jie, Zhou Yang, Chen Luyao, Peng Xiyu, Lu Ying, Guo Shuntang

Food and Machinery

With three different varieties of highland barley (Zangqing 320, Zangqing 2000, Goumang) as raw material, investigated the β-glucan content, pasting properties and aroma characteristics of cooked highland barley (Zanba) obtained from layered milling method. The results showed that, from outer to inner layer (Zanba powderⅠ～Ⅵ), the samples were exhibited with increasing β-glucan content, as well as improved initial and final viscosity values for the three highland barleys. Furthermore, the total peak area and the flavor in gas chromatography showed a decreasing tendency, which indicated the flavor characteristics of outer layer Zanba powder were better than that of the inner layer …

Yield And Quality Of The Sprouts From Different Safflower Varieties (Lines), Zhu Xiaoqing, Du Weiwei, Wang Qing, Hou Kai, Xiao Renfeng, Wu Wei

Food and Machinery

This paper is aimed at studying the relationship between the safflower seeds with different linoleic acid content and its sprouts quality, to provide reference for the scientific production of safflower sprouts. The yield and quality of the safflower sprouts from 8 varieties (lines) with different linoleic acid content were analyzed and compared. The results showed linoleic acid content of PI305192 in seeds was the highest.The hypocotyl length and edible fresh weight of PI305192 sprouts were the highest, its edible fresh weight was significantly higher than that of other varieties (lines) except for PI544040.The contents of linoleic acid of Chuanhong No. …

Determination Of Retinol Palmitate And Retinol Acetate In Formulas For Special Medical Purposes Intended For Infants By Hplc, Li Tao, Zhou Yanhua, Sun Guifang, Yang Tao, Yin Weicheng, Yang Qingyi

Food and Machinery

Retinol palmitate and retinol acetate in formulas for special medical purposes intended for infants was determined using NP-HPLC. The HPLC system consisted of NH₂ column (150 mm×4.6 mm, 5.0 μm), mobile phase of n-hexane-25.0% tert-butyl methyl ether n-hexane solution (955), flow rate of 1.0 mL/min, injection volume of 50 μL, column temperature of 30 ℃, UV detector detection wavelength of 325 nm. Results showed that retention time of retinol palmitate and retinol acetate were 3.5 min and 6.0 min, respecitively the linearity was good in the range of 0.05～10.0 μg/mL with a correlation coefficient of 0.999 9, the detection …

Study On Bacteriostat To Colletorichum Orbiculare Of Muskmelon And Fresh Keeping Effects Of Bio-Liquid, Liu Fangfang, Li Fanzhu, Zhang Xian, Li Min

Food and Machinery

To develop a new type of fruit and vegetable preservative with low toxicity and harmLess, the bio-liquid was used as the main experimental material, and the antibacterial effects and mechanism of bio-liquid on the Colletorichum orbiculare and the effect on the preservation of muskmelon were studied. The results showed that the bio-liquid had obvious antibacterial effect on the Colletorichum orbiculare, and the EC₅₀ and EC₇₀ ere 1.8% and 2.4%, respectively. The bio-liquid could destroy the membrane structure of the Colletorichum orbiculare and the rupture the cell membrane, which caused the exudation of proteins, nucleic acids, and carbohydrates. Treated …

Optimization Of Ultrasonic Microwave-Assisted Extraction Of Oligosaccharide From Lotus (Nelumbo Nucifera Gaertn.) Seeds Using Response Surface Methodology, Guo Zebin, Chen Jinghao, Jia Xiangze, Lu Xu, Zheng Baodong

Food and Machinery

Ultrasonic microwave-assisted extraction of oligosaccha-rides from lotus (Nelumbo nucifera Gaertn.) seeds (LOS) was investigated. The five parameters, ultrasonic time, ultrasonic temperature, microwave power, microwave time and solid to liquid ratio were optimized using the Box-behnken design with a quadratic regression model built by using Response Surface Methodology (RSM). The highest oligosaccharide yield, (10.525±0.017)%, was obtained under optimal conditions for ultrasonic time, ultrasonic temperature, microwave power , liquid to solid ratio and microwave time at 10 min, 45 ℃，100 W，100 min and 301 (mL/g), respectively.

Extraction Of Insoluble Dietary Fiber From Purple Sweet Potato By Ultrasonic Assisted Enzyme Method And The Determination Of Its Hydroxyl Radical Scavenging Ability, Xue Shan

Food and Machinery

The process of extracting the insoluble dietary fiber (IDF) of purple potato by ultrasonic-assisted enzymatic method was studied, and its antioxidation in vitro was also evaluated. The effect of five factors (ratio of material to liquid, ultrasonic time, ultrasonic power, alpha amylase dosage and enzyme hydrolysis temperature) on insoluble dietary fiber extraction rate were determined. Orthogonal optimization test was carried out on the basis of single factor test, and the antioxidant level of IDF was evaluated by hydroxyl radical (·OH) in vitro. The single factor test showed that among the factors, the enzymolysis temperature played the most significant role on …

The Influence Of Foodborne Pathogens Growth Heterogeneity On Risk Assessment, Lu Yi, Liu Haiquan, Zhao Yong, Xie Jing, Pan Yingjie

Food and Machinery

In this review, the concept of growth heterogeneity of foodborne pathogenic bacteria was introduced. Moreover, the domestic and abroad study progress was reviewed, and the expression forms and influencing factors of strain growth heterogeneity were systematically summarized. In addition, the solutions for reducing the accuracy the growth heterogeneity of foodborne pathogenic bacteria to microbial risk assessment were also presented.

Radical Social Ecology As Deep Pragmatism: A Call To The Abolition Of Systemic Dissonance And The Minimization Of Entropic Chaos, Arielle Brender

Student Theses 2015-Present

This paper aims to shed light on the dissonance caused by the superimposition of Dominant Human Systems on Natural Systems. I highlight the synthetic nature of Dominant Human Systems as egoic and linguistic phenomenon manufactured by a mere portion of the human population, which renders them inherently oppressive unto peoples and landscapes whose wisdom were barred from the design process. In pursuing a radical pragmatic approach to mending the simultaneous oppression and destruction of the human being and the earth, I highlight the necessity of minimizing entropic chaos caused by excess energy expenditure, an essential feature of systems that aim …

What’S At Steak? The Political Discourse Of Emissions Intensity And Implications Of Animal Agriculture, Kalyn Simon

Master's Theses

This thesis analyzes the international discourse of greenhouse gas emissions in relation to livestock production. Specific government ministries, research institutes, and multilateral organizations are framing a new strategy to mitigate emissions by using emissions intensity metrics. Emissions intensity is a ratio comparing emissions produced per unit of animal product as oppose to measuring absolute emissions. This research is acknowledged as a win-win scenario which allows for a reduction of greenhouse gas emissions while continuing production more efficiently. This thesis outlines the emergence of this metric in international discourse and the implications this shift has on the livestock sector globally. Ultimately, …

National Agri-Marketing Association Annual Conference A Winning Combination Of Experiential Learning And Networking, Erika Harms, Rosalee A. Swartz, Kara Heideman

Cornhusker Economics

The National Agri-Marketing Association (NAMA) is comprised of 22 professional chapters in 6 regions nationwide and 33 student chapters at universities across the United States and Canada. NAMA members include professionals in agribusinesses, advertising and public relations agencies, commodity associations, and faculty, staff, and students. Nebraska’s professional Cornhusker Chapter has nearly 70 members and Nebraska NAMA student members are invited to Cornhusker Chapter meetings to learn about the latest trends and rub shoulders with marketing professionals. This network of professionals— at the state and national levels—provides valuable opportunities for Nebraska NAMA students.

Sustainable Agriculture: Integration Of Aquaponics At Punta Leona Hotel And Club In Costa Rica, Cailin Sierra Dyer, Paris Riley Smith

Senior Honors Projects, 2010-2019

Sustainable agriculture is becoming an increasingly important method of food production. As human populations continue to grow, attendant food demand has been increasingly met via agribusiness, including monoculture crop production and factory farming. As is well documented, the rise of agribusiness has led to resource degradation and declining stocks on which “sustainable agriculture” relies. This paper describes a local attempt to re-establish “sustainable agriculture” through the development of an aquaculture system that mimics a naturally occurring cycle that integrates fish and plants. The system was constructed over a three-week period in Punta Leona, Costa Rica. First, the ground was cleared …

The Combined Effects Of Soil Fertility And Soil Amendments On The Growth And Mycorrhizal Associations Of American Ginseng (Panax Quinquefolius), Emily Ann Murray

Masters Theses, 2010-2019

Arbuscular mycorrhizal fungi (AMF) are fungi that form symbiotic associations with 70-90% of plant families. They are known to allow for the extension of the root system as well as an increase in plant size by assisting with the uptake of nutrients such as nitrogen and phosphorus. The role that AMF play in plant health and success has led to the development of commercial inoculum, which is used in agricultural settings. However, soil fertility, and soil amendments are known to affect AMF and plant associations. This study intends to look at how cultivated American Ginseng seedlings are affected by commercial …

Nitrogen And Weed Management In Transplanted Tomato In The Nigerian Forest-Savanna Transition Zone, J. A. Adigun, O. S. Daramola, O. R. Adeyemi, P. M. Olorunmaiye, O. A. Osipitan

Haskell Agricultural Laboratory (Northeast Research and Extension Center)

Weed infestation and inherent low soil fertility are among primary reasons for low yields of tomato in Nigeria. Field trials were carried out during the wet season of 2015 and 2016 to evaluate yield response of tomato to nitrogen (N) application and weed control methods in the forest-savanna transition zone of Abeokuta, Nigeria. Positive relationship exists between growth of weed species and increase in N application. Across the years of study, increase in N up to 90 kg/ha increased weed density by 11–25%, however, the increased N gave the transplanted tomato competitive advantage and thus enhanced weed smothering. Pre-transplant application …

Agricultural Information Needs And Food Access In The Stann Creek District Of Belize, Sam Harris

Agricultural Education, Communications and Technology Undergraduate Honors Theses

The purpose of this study was to describe agricultural information sources available to farmers and to describe food access and availability for the people of Dangriga, Stann Creek, Belize. This study used descriptive survey research methods with convenience sampling of the general public (n=22) and of farmers (n = 38) in the summer of 2017. Farmers use a variety of agricultural information sources with the extension service cited most often, followed by friends and fellow farmers. Weather, lack of information, pests, and inadequate access to capital were of primary concern for farmers. Face to face meetings were …

Home On The Market Range: An Evaluation Of Cultural And Economic Barriers To Large-Scale Bison Farming, Skylar Peyton

All College Thesis Program, 2016-2019

Give me a home where the buffalo roam maybe a catchy tune from the 1800s, but it no longer represents the landscape of the American Midwest. As large-scale corporate farms invade the prairie with row crops and cattle yards, they are chasing away family practices as well as the antelope. Could bison, the original red meat, be a successful meat alternative? The argument that bison would be preferable to beef is based upon four premises: bison are better for the environment, healthier for human consumption, easier to manage, and similar in land needs. Based on these four premises, bison appears …

Sustainable Intensification Of Agriculture: Opportunities And Challenges For Food Security And Agrarian Adaptation To Environmental Change In Bangladesh, Aaron Michael Shew

Graduate Theses and Dissertations

This dissertation investigates three unique aspects of sustainable agricultural intensification (SAI) in the context of Bangladeshi rice production. The first article presents a qualitative analysis of SAI and farmer surveys in the embanked polder region of coastal Bangladesh. The second article investigates the global food security and environmental impacts of already adopted High Yielding Variety (HYV) rice and double-cropped rice systems in Bangladesh using a spatial partial equilibrium trade model and a Life Cycle Assessment (LCA). The final article demonstrates a remote sensing methodology for monitoring dry season rice production at 30 m resolution in Bangladesh using a harmonic time …

Relationships Among Beef Cow Productivity Traits And Single Nucleotide Polymorphisms In The Bovine Heat Shock Protein 70 Gene, Ashley Finney

Animal Science Undergraduate Honors Theses

When eukaryotes are exposed to stressors such as heat, toxins, and low oxygen levels, heat shock proteins (HSPs) are synthesized to maintain normal cellular function within the body. Single nucleotide polymorphisms in the heat shock protein 70 (Hsp70) gene have been associated with calving percentage, and Julian calving date in spring-calving crossbred Brahman cows (Rosenkrans, et al., 2010). Our objective was to determine associations between previously identified polymorphisms in the promoter region and coding sequence of the bovine Hsp70 gene and beef cow efficiency. We evaluated productivity traits, including Julian calving date and calving rates, of fall-calving cows at each …

Alternative Feeding Strategies For Growing Cattle Grazing Endophyte-Infected Tall Fescue During The Summer, Kerri A. Johnson

Graduate Theses/Dissertations

Two experiments were conducted to determine animal performance of alternative feeding strategies to heifers grazing endophyte-infected tall fescue during summer months. In Experiment 1, 40 Limousin heifers (261± 40kg initial BW) were stratified by weight and assigned to either a spring harvested tall fescue silage diet or grazing endophyte-infected tall fescue pasture with grain supplement having either natural or artificial shade for 80 days. In Experiment 2, 40 Limousin heifers (277 ± 44kg initial BW) were stratified by weight and assigned to either a traditional grain supplement or feather-meal supplement (rumen bypass arginine supplement) with natural or artificial shade while …

2018 South Dakota Commodity Crop Producer Survey Results, Jessica D. Ulrich-Schad, Abdelrahim Abulbasher, Department Of Sociology And Rural Studies, Ness School Of Management And Economics

South Dakota Farm Survey

From January to March 2018, we surveyed South Dakota commodity crop producers about their land management practices and attitudes. Farming operations in 34 South Dakota counties east of the Missouri River, where most of corn and soybean farming activities in the state are located, were targeted to take the questionnaire (see map below). We obtained a list of 10,000 farming operations that had participated in Farm Service Agency (FSA) programs in 2016 from the FSA and selected 3,000 operations to participate using proportionate stratified-random sampling according to number of farming operations in the study counties. The questionnaire directed the person …

Nebline, May 2018

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Farmers: Use climate for planning, weather for doing

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

and other extension news and events

Enhancing Quality Of Life Through Foreign Direct Investment In Northern Mozambique, Sarah-Beth Delay

Agricultural Economics and Agribusiness Undergraduate Honors Theses

Foreign Direct Investment (FDI) has the potential to increase economic activity and improve GDP growth in low-income countries, but can hinder economic development (quality of life improvements) if not sustainable and holistic in manner. Africa serves as a host to many cases of FDI focused on economic growth, but not necessarily improving the quality of life for its citizens. FDI has spread throughout the African continent, where many countries are well endowed with natural resources, like minerals and coal. These economies have experienced rapid GDP growth with few benefits reaching citizens of the host country. Mozambique is a low-income country …

Consumers’ Willingness To Pay For Hydroponic Lettuce, Daniel Gilmour

Graduate Theses and Dissertations

With continued advances in hydroponic plant production technology, an increasing number of farms have begun using hydroponic techniques to grow leaf lettuce and other food crops in a controlled environment. Recent controversy about the ongoing inclusion of hydroponics in the USDA organic program has highlighted uncertainty about marketing for hydroponic crops. In November 2017, the National Organic Standards Board voted not to recommend that hydroponic farms be banned from applying for organic certification. Since then, continued controversy has led a group of organic producers to start an additional independent certification program that would exclude hydroponic crops. While hydroponic production may …