Agriculture Commons^™

Nebline, September 2016

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: 4-H Youth Showcase Projects, Develop Skills at the Super Fair

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

Extension Calendar

and other extension news and events

Comparative Study Of Nutrient Uptake Between Sorghum X Drummond Ii And Cyperus Conglomeratus, A Desert Sedge Native To The Uae, Safaa Ahmed Aldhanhani

Theses

Sudan grass (Sorghum x drummondii) is commonly grown for the production of animal fodder in the UAE. Cyperus conglomeratus (locally termed ‘Thenda’) is a sedge native to the UAE, and one of the very few plants that colonize soils of shifting desert dunes. The native plant is grazed by camels, and may thus have a potential for animal feed production. While Sudan grass is a mycotrophic plant that normally lives in symbiosis with arbuscular mycorrhizal fungi for facilitation of nutrient uptake, C. conglomeratus is a non-host to these root symbionts. In the desert sedges rhizosheaths comprising of dense coats of …

Establishing Birdsfoot Trefoil In The Mountain West, Joe E. Brummer, Jennifer W. Macadam, Glenn Shewmaker, M. Anowarul Isllam

All Current Publications

This bulletin describes birdsfoot trefoil in the Mountain West, and why it should be considered for planting. It includes cultivar selection and seeding rate, establishment considerations, and interseeding methods. Its high nutritive value and ruminant-friendly tannins will support livestock production without risk of bloat, while it fixes nitrogen to increase production in the entire pasture.

Fruit And Vegetable Organic Certification Basics, Tiffany Maughan, Dan Drost

All Current Publications

This fact sheet describes the steps in certification process that allows a farmer to sell products labeled with the USDA ORGANIC seal.

Local Fruit And Vegetable Availability Along The Wasatch Front, Britney Hunter, Shawn Olsen, Dan Drost, Brent Black, Jaydee Gunnell

All Current Publications

This fact sheet tells where to find local produce along the Wasatch Front, and when the produce is available.

Voles [Microtus Spp.], Ryan Davis

All Current Publications

This fact sheet focuses on the meadow vole and includes a description, how to identify voles, their biology, activity and damage, and how to manage them.

Sequoia Pitch Moth In Pines, Ryan S. Davis, Katie Wagner

All Current Publications

This fact sheet focuses on the sequoia pitch moth (SPM) (Sesiidae: Synanthedon sequoiae). It includes how to identify, life cycle, damage, and management.

U.S. Drought Monitor, August 30, 2016, Chris Fenimore

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 30, 2016 (8/30/16) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

The Farm Newsletter, Usu Student Organic Farm

USU Student Organic Farm Newsletter

School has officially started with fall semester classes. At this time of year several changes take place. Along with time changes in CSA pickups, now is the time when we begin the transition from the current to the new farm production manager. Joe (the current manager) is still with us, and he will continue to provide support and instruction. However many of our fall activities will be overseen by the production manager for next year. Ayla has been one of our support interns this summer and has been hoping and working to obtain this position. She is excited by what …

Barriers To Successful Farm/Ranch Business Transfers, David J. Goeller

Cornhusker Economics

Many farm and ranch business owners desire a successor, someone who will continue the business after the current owner retires and/or eventually dies. Finding the right person is obviously the first step in the business succession process. Some have found a family member who is interested in taking over the business. Some have found a neighbor or friend and others have made connections with complete strangers. Most often the successor is a family member, a child, grandchild, niece or nephew, but finding the right person does not automatically equal success. There are barriers that prove quite difficult in many cases. …

Breeding Of Temperature-Sensitive Mutant From Saccharomyces Cerevisiae, Yue Xijie, Jiang Xuewei, Luo Xiaoming, Zhou Hui, Liu Yongle, Chen Daiwen, Zhou Zhiming

Food and Machinery

In order to obtain the efficient secretion of intracellular product in yeast, as the original strain,Saccharomyces cerevisiae (2n), (n) were mutagenized with UV treatment, five mutants strain may have temperature-sensitive were selected. To further identify, Y₁ was used as the control bacterium, and its content of extracellular nucleic acids, proteins and FDP were determined, find that the highest degree of autolysis was Ts₄(2n), it’s content of nucleic acid and protein in extracellular environment were 1.709, 1.483, the concentration of FDP in extracellular environment was 38μg/mL, higher than Y₁ 24.1%. Ts^*₂ (n) and Ts^{* …}

Influence Of Different Conditions On Mass Transfer Kinetics Of Rabbit Meat During Wet-Curing, He Cui, Xia Yangyi, Zhang Yan, Su Yan

Food and Machinery

The influence of different curing conditions including brine concentration (6%, 10%, and 15%), temperature (4, 15, and 25 ℃) and stirred on mass transfer kinetics of fresh rabbit meat during wet-curing was analyzed. The results showed that the changes of water (ΔMwt), salt content (ΔM^NaClt) and weight (ΔM0t) had good correlation with the square root curing time (t^0.5) in different curing conditions, and k₂ was affected by brine concentration, temperature and stirring. Our results showed that the brine concentration of 10% could cause the highest diffusion value (1.18×10^-9 m²/s) ,and the biggest …

The Analyses On Chemical Components In The Leaf Volatile Oils Of Zephyranthes Candida（Lindl.）Herb. And Their Antimicrobial Activities In The Fresh Milk, Wei Qiang, Shi Xuefeng

Food and Machinery

Two kinds of volatile oil were extracted by steam distillation extraction (SDE) and supercritical fluid extraction of CO2 (SFE-CO2), and then they were identified by gas chromatography-mass spectrometry (GC—MS). The antimicroble effects of the extract on different rot funguses in fresh milk was evaluated in 4 ℃ within 10 days. There were 39 different components in the two kinds of volatile oil, including methyl cyclohexane, octacosane, 1,3-dimethyl-benzene, and dibutyl phthalate mainly found in the SDE volatile oil, and 4-(4-ethylcyclohexyl)-1-pentyl-cyclohexene, toluene, 1,2-benzenedicar-boxylic acid, diisooctyl ester, 1-ethoxy-pentane, 2-methoxy-4-vinylphenol, and 2,4-bis(1,1-dimethylethyl)-phenol mostly presented in the SFE-CO2 volatile oil. The differences among the contents …

Analysis Of Aroma Components Ingeranium Oil By Gc/Ms Combined With Retention Index, Li Yuandong, Li Xianyi, Duan Yanqing, Liu Xiuming, Dangl Izhi, Huang Libin

Food and Machinery

The aroma components of geranium oil were analyzed by GC/MS, and the peak area normalization method was used to calculate the relative content of each component. With the mass spectrometry library search, 61 compounds which account for 86.217% in the aroma components of geranium, were identified by using reference literature retention index. The cis(trans)-isomers were confirmed by using retention index, and the accuracy of compound qualitative analysis in natural flavor was improved. The aroma of the key aroma compositions of the geranium oil (Citronellol, Geraniol, Citronellyl formate, Menthone, Geranyl formate, Isomenthone, Geranyl tiglate, Rose oxide, Geranyl butyrate, et al) was …

The Establishment Of Characteristic Fingerprints Of Faint-Scent Cigarettes, Ying Fei, Song Shiqing, Zhang Xiaoming

Food and Machinery

In order to test the quality and characteristics of faint-scent cigarettes by the technology of GC—MS and electronic nose fingerprint, the method of SDE combined with GC—MS and electronic nose were used to construct their standard and radar fingerprints. Samples of non faint-scent cigarettes were selected to study the standard fingerprint. Results of similarity calculation showed that six batches of faint-scent cigarettes had a much higher similarity with the standard fingerprint, and the extent similarity was more than 85%, while the other six batches of non faint-scent ones had a lower similarity. This indicated that the faint-scent and non faint-scent …

Measurement Characteristics Analysis Of Microwave Cigarette Density Distribution Detector, Liu Minchang, Liu Yang, Wen Ruoyu, Zeng Jian, Zhao Weiyi

Food and Machinery

In order to analyze the measurement characteristics of microwave cigarette density distribution detector, the effects of types, width and position of tipping paper, and filling length of filter rod were studied. In this paper, the sample making method that can effectively reduce the measurement error is proposed, and the relationship model between measurement value and filling length of filter rod is also established. Our results showed that the detection accuracy can be theoretically improved by reducing the thickness of the microwave cavity, and this provides a new clue for further optimizing the detector of microwave cigarette density distribution.

Wide-Scope Screening Of Multiple And Illegal Additives In Foods By High Performance Liquid Chromatography-High Resolution Mass Spectrometry, Zhang Fan, Yan Hongfei, Dai Jieyun, Wu Bo, Huang Zhiqiang, Zhang Ying, Wang Meiling

Food and Machinery

A method was developed screening, confirming and quantifying multiple additives and banned dyes in wine, juice and other beverages by liquid chromatography-ion trap-time of flight tandem mass spectrometry (LC-MS-IT-TOF). The accurate and multiple-stage mass spectrometry database of 41compounds was established. The analytes in samples were diluted with water-methanol (v/v). In the chromatographic analysis, target compounds were separated on a C₁₈ column (150 mm × 4.6 mm, 5 μm) with the gradient elution using the mobile phases of methanol and 2 mM ammonium acetate. The results showed that the limits of detection were 0.005～1.0 mg/kg. The method validation was carried …

Study On Typical Volatiles Of Rice Contaminated By Aspergillus Flavus During Storage, Ren Jiali, Tang Yunpeng, Zhang Ziying, Zhou Chao

Food and Machinery

A headspace-solid phase microextraction/gas chromatography-mass spectrometry (HS—SPME/GC—MS) was used to analyze the volatiles of rice contaminated with Aspergillus flavus and their ion chromatograms were obtained. Combined TurboMass and NIST Search software, 26 volatile metabolites were identified in rice contaminated with Aspergillus flavus, including five kinds of aldehydes, six kinds of alcohols, one kind of ketone, nine kinds of hydrocarbons, one kind of ester, one kind heterocyclic, one kind of organic acid, one kind of amine. Based on aflatoxin catabolism and substance transformation in the rice, 2-hydroxy inferred-propionamide and Heptaldehyde are typically volatile component group, which would be used as typical …

Determination Of 5 Heavy Metal Elements And 15 Rare-Earth Metal Elements In Dark Tea, Chen Xiong, Fang Xuanyi, Dai Xuan, Chen Tiebi, Liu Xiaowen, Li Wenyi

Food and Machinery

Under the optimized conditions, the samples were analyzed by ICP—MS with the triple internal standard elements Rh, In and Re. Good linearity of standard curves of twenty elements were obtained, and all the linear coefficient of them were above 0.999. The detection limits were in the range of 0.001 2～0.10 ng/mL. GBW10052-green tea, the certified reference material was analyzed and the results showed good agreement with the certified values. Five dark tea samples were determined by the proposed method. In the recovery experiment controlled by adding stand substance, the recoveries were range from 92% to 105%. It was indicated that …

Application Of Ionic Liquids In The Detection Of Antibiotic Negative Milk, Zhou Xinkui, Hong Xia, Qian Yingwen, Deng Lijuan, Wang Jiebin, Gao Zhiying, He Haining, Liu Qi

Food and Machinery

Hydrophobic ionic liquid 1-octyl-3-methylimidazolium hexafluorophosphate [(C₈MIM) (PF₆)] was synthesized using metathesis method, and then the ionic liquid was purified by activated carbon and macroporous resin solid phase extraction column, to get a colorless, transparent product [(C₈MIM) (PF₆)] with a yield of 87.6%. The ionic liquids was used to extract penicillin and penicillin-thiazole acid hydrolysates in milk and dairy products, and its extracting condition was optimized. After that the content of penicillin and penicillin thiazole acid were detected by utilizing self-developed HPLC method, and it could be indirectly determined whether the milk and …