Profit-Maximizing Potassium Fertilizer Recommendations For Soybean,
2020
University of Arkansas, Fayetteville
Profit-Maximizing Potassium Fertilizer Recommendations For Soybean, Michael P. Popp, Nathan A. Slaton, Trenton L. Roberts
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Potassium (K) fertilizer has important yield and cost ramifications in soybean [Glycine max (L.) Merr.] production. Rate recommendations are often based on expected yield response as predicted by a soil test. To that end, soybean response to K application rate studies were analyzed using 86 site-years from 2004 to 2019. We estimated a generic yield response curve across soybean cultivar and soil texture to allow calculation of profit-maximizing K rates for producers in the mid-southern United States that also consider crop value and fertilizer cost. Further, we compared profit-maximizing fertilizer-K rates with those currently recommended. Using a spreadsheet-based decision …
Irrigated Soybean Response To Granular Fertilizer Potassium Application Timing,
2020
University of Arkansas, Fayetteville
Irrigated Soybean Response To Granular Fertilizer Potassium Application Timing, Nathan A. Slaton, Trenton L. Roberts, W. Jeremy Ross, Tyler L. Richmond
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Amelioration of K deficiency during the growing season requires knowledge of critical tissue concentrations and crop yield response to fertilization time. Our objectives were to characterize the yield and uptake responses of K-deficient irrigated soybean [Glycine max (L.) Merr.] to in-season fertilizer-K application time and rate, evaluate fertilizer-potassium-recovery efficiency (FKRE), and evaluate how leaflet-K concentration responds to K-fertilization time. Six trials were established on silt loam soils. Muriate of potash was applied pre-plant and compared to an equivalent K rate applied post-emergence on six or seven dates. Grain yield, trifoliolate-K concentration, and K uptake were measured. Relative soybean yields …
Corn And Soybean Response To Wastewater-Recovered And Other Common Phosphorus Fertilizers,
2020
University of Arkansas, Fayetteville
Corn And Soybean Response To Wastewater-Recovered And Other Common Phosphorus Fertilizers, Shane Ylagan, Kristofor R. Brye, Lauren Greenlee
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Recycling P from wastewaters may provide a sustainable source of P that could also protect surface water quality from P enrichment. Struvite (MgNH4PO4·6H2O) is a material that can be created from P-containing wastewater and has been shown to have agricultural fertilizer value. The objective of this study was to evaluate the effects of electrochemically precipitated struvite (ECST), chemically precipitated struvite (Crystal Green, CG), diammonium phosphate (DAP), monoammonium phosphate (MAP), rock phosphate (RP), and triple superphosphate (TSP) on corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] response in a 79-d greenhouse …
Fate And Transport Of Phosphorus-Containing Land-Applied Swine Slurry In A Karst Watershed,
2020
University of Arkansas, Fayetteville
Fate And Transport Of Phosphorus-Containing Land-Applied Swine Slurry In A Karst Watershed, A. N. Sharpley, M. B. Daniels, K. R. Brye, K. Vandevender, J. Burke, L G. Berry, P. Webb
Crop, Soil and Environmental Sciences Faculty Publications and Presentations
Phosphorus distribution in pasture soils underlain with karst geology was determined on a 0.10-ha grid in 2014, 2016, and 2018. Two fields (Fields 1 and 12) received swine slurry from a concentrated animal feeding operation, whereas another (Field 5) received mineral fertilizer. All fields were grazed by cattle and periodically hayed. Mean Mehlich-3 extractable P in the top 10 cm increased (p ≤ .05 level) for Fields 1 (59–91 mg kg−1) and 12 (63–122 mg kg−1) between 2014 and 2018, with little change for Field 5 (45–47 mg kg−1). Over the 5-yr monitoring …
Influence Of Cover Crop Management Practices On Rainfed Corn Production In Semi-Arid Western Nebraska,
2020
University of Nebraska-Lincoln
Influence Of Cover Crop Management Practices On Rainfed Corn Production In Semi-Arid Western Nebraska, Alexandre Tonon Rosa
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
With the increased cover crop (CC) popularity, producers of semi-arid regions of western Nebraska are questioning whether they could successfully incorporate CC into their rainfed winter wheat (Triticum aestivum L.)-corn (Zea mays L.)-fallow rotations. The major concern is that CCs may deplete soil water affecting the subsequent crop. Therefore, three studies were established under rainfed conditions of western Nebraska to access the effects of CCs on soil water, soil compaction, nutrient cycling, weed demographics, residue coverage, and subsequent corn yield. The first study evaluated the influence of CC planting and termination times prior to corn establishment. Late termination …
Estimating A Fair Value For Standing Forage,
2020
University of Nebraska-Lincoln
Estimating A Fair Value For Standing Forage, Jay Parsons, Daren Redfearn, Mary E. Drewnoski
Cornhusker Economics
Several things need to be considered when deciding what value to place on standing forage. Forage prices reflect current inventories, demand, expected current season production and associated yield risk, and quality characteristics. Standing forage can be harvested in a number of different ways which need to be considered when pricing it. Below, we provide a few general thoughts and questions concerning harvesting method and comparable feed value to consider when pricing standing forage. We follow with a few examples illustrating pricing calculations for forage mechanically harvested as hay, haylage, and silage. We close with pricing considerations for forage harvested by …
Literatura Viva: Formas De Conocer La Literatura Y Agricultura Desde Chiapas,
2020
Portland State University
Literatura Viva: Formas De Conocer La Literatura Y Agricultura Desde Chiapas, Jesse Nichols
Dissertations and Theses
Literatura Viva reflects the links between agriculture and literature in Chiapas, Mexico, demonstrating how the ways of knowing the environment which are culturally expressed through literature and the practices of sustainable agriculture are deeply linked. It argues that the experience of the agricultural working class is central not just to a physical movement towards tangible agricultural change but to a society's ability to understand its socio-cultural and natural environment. The thesis first explores indigenous literature, then agricultural practices and finally educational movements which seek to express pluriversal understandings and ways of interacting with the planet. It argues that these understandings …
Analysis Of Puff-By-Puff Release Of Nine Main Components In Mainstream Smoke Of Typical Flue-Cured Slim And Normal Cigarettes,
2020
China Tobacco Jiangsu Industrial Co., Ltd., Nanjing, Jiangsu 210019 , China
Analysis Of Puff-By-Puff Release Of Nine Main Components In Mainstream Smoke Of Typical Flue-Cured Slim And Normal Cigarettes, Liu Qi, Ma Meng-Jie, Gong Zhen-Lin, Yuan Yi-Lai, Zhu Huai-Yuan, Wu Yang, Liao Hui-Yun
Food and Machinery
In order to investigate the difference of the puff-by-puff release of nine major components (tar, nicotine, CO, NNK, B[a]P, phenol, crotonaldehyde, HCN and NH3) in mainstream smoke of slim and normal cigarettes, typical flue-cured cigarette samples from same cut tobacco were smoked by smoking machine under ISO. Results showed that: ① The average puffs of slim and normal cigarettes were 5.49 and 6.72 respectively, which showed there were significant statistical differences. In general, the puff-by-puff and total release of all components from slim cigarette were lower than from normal cigarette. and puff-by-puff release deviations of tar, nicotine, NNK, B[a]P, phenol, …
Study On The Quality Of Raw And Cooked Chestnut From Different Growing Regions,
2020
Agro-food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences,Nanning, Guangxi 530007 , China ；Guangxi Key Laboratory of Fruits and Vegetables Storage-processingTechnology, Nanning, Guangxi 530007 , China
Study On The Quality Of Raw And Cooked Chestnut From Different Growing Regions, Zhou Kui, Zhang Ya-Yuan, Huang Hui-Ling, You Xiang-Rong, Wang Ying, Li Ming-Juan, Wei Ping
Food and Machinery
In order to understand the comprehensive nutritional value of Guangxi chestnut growing in Counties Tiane, Longlin and Longan, the nutritional components, antioxidant components and processing characteristics of raw and cooked chestnut were compared and analyzed. The results showed that the quality of chestnut varies with the place of production and the state of ripeness. The cooked chestnut had a darker color, higher fat, amino acid content and water holding capacity, while the raw chestnut had higher soluble protein and vitamin C (VC) content, and stronger ability of scavenging free-radical and oil-holding capacity. However, the raw chestnut exhibited the …
Detection Of Enrofloxacin Residues In Chicken Based On Surface Enhanced Raman Spectroscopy And Two-Dimensional Correlation Spectroscopy,
2020
School of Agriculture, Ningxia University, Yinchuan, Ningxia 750021 , China
Detection Of Enrofloxacin Residues In Chicken Based On Surface Enhanced Raman Spectroscopy And Two-Dimensional Correlation Spectroscopy, Ban Jing-Jing, Liu Gui-Shan, He Jian-Guo, Cheng Li-Juan, Fan Nai-Yun, Yuan Rui-Rui
Food and Machinery
The surface-enhanced Raman spectroscopy (SERS) technology and the two-dimensional correlation spectroscopy (2D-COS) were used to optimize the characteristic variables of the Enrofloxacin in chicken meat. The partial least squares regression method (PLSR) was used to establish Enro the characteristic peak analysis model of sand star was compared with the competitive positive adaptive weighting algorithm (CARS). The results showed that the 2D-COS-PLSR model has the best effect, and its Rc and Rp were 0.979 7, 0.997 2 respectively, which shows that it is feasible to use 2D-COS to optimize the characteristic spectral peaks related to the concentration of enrofloxacin in chicken.
Establishment Of Double Antibody Sandwich Elisa For Peanut Allergenic Protein Ara H 1,
2020
College of Food and Bioengineering, Henan University of Science & Technology, Luoyang, Henan 471023 ,China
Establishment Of Double Antibody Sandwich Elisa For Peanut Allergenic Protein Ara H 1, Wang Yao, Chen Xi, Wu Han-Liang, Wei Xing, Zhang Guo-Qing, Zhang Shu-Xia, Liu Sheng-Nan
Food and Machinery
In order to establish a double antibody sandwich ELISA method for the rapid, sensitive and specific detection of peanut allergenic protein Ara h 1. Taking Ara h 1 murine monoclonal antibody (mAb) as capture antibody, and Ara h 1 rabbit polyclonal antibody (pAb) as detection antibody, the checkerboard method was used to optimize the antibody working concentration to establish the method, and the detection characteristics were identified, including sensitivity, specificity, accuracy and stability of the method. Results: The optimal working concentrations of mAb and pAb were 1∶10 000 and 1∶8 000 dilution, respectively. The linear range of the ELISA standard …
Design And Simulation Analysis Of High-Efficiency Flexible Pipe Chain Conveying Equipment,
2020
Henan University of Technology, Zhengzhou, Henan 450001 , China
Design And Simulation Analysis Of High-Efficiency Flexible Pipe Chain Conveying Equipment, Wang Zhen-Min, Li Yong-Xiang, Wang Ming-Xu, Wang Huai-Ting
Food and Machinery
Using the integrated design concept and a combination of theoretical analysis and simulation, a high-efficiency and flexible pipe chain conveyor with cleaning devices is designed. SolidWorks 3D modeling software is used to model each part of the equipment in blocks, and virtual assembly is carried out to ensure that the design structure is designed reasonably, and that the pipe chain conveyor equipment can complete the functions of conveying materials and cleaning up residue. The simulation results show that the designed pipe chain conveying equipment completes the conveying of materials while the real simulation software simulates and analyzes the key components …
Optimization Of Preparation Technology And Structural Characterization Of Tilapia Scale Collagen Peptide Ferrous Chelate,
2020
Jiangxi Normal University National Freshwater Fish Processing Technology R & D Professional Center,Nanchang, Jiangxi 330022 , China ；Jiangxi Normal University Jiangxi Province Freshwater Fish High-valueUtilization Engineering Technology Research Center, Nanchang, Jiangxi 330022 , China
Optimization Of Preparation Technology And Structural Characterization Of Tilapia Scale Collagen Peptide Ferrous Chelate, Tang Shun-Bo, Tu Zong-Cai, Sha Xiao-Mei, Zhang Yao, Zhang Lu
Food and Machinery
The peptide ferrous chelate was prepared using tilapia scale collagen peptide and ferrous chloride salt as raw materials, and its optimal chelating conditions and chelate structure were investigated. Using chelate yield as an indicator, the chelation conditions were optimized by single factor and response surface methods; The structure and amino acid composition of the chelate were analyzed by scanning electron microscope, Fourier infrared spectroscopy, X-ray diffraction and amino acid analysis. The results showed that the optimal reaction conditions for preparing the chelate were pH 5.30, peptide concentration 3.00%, and peptide to iron mass ratio 3.2∶1.0. Under these conditions, the chelation …
Analysis Of Nutritional Quality And Antioxidant Activity Of The Seed Oil From Leping Melon,
2020
Department of Food Science, Foshan Polytechnic, Foshan, Guangdong 528137 , China ；GuangdongProvincial Food Safety Testing and Traceability Technology Application Public Training Center, Foshan,Guangdong 528137 , China
Analysis Of Nutritional Quality And Antioxidant Activity Of The Seed Oil From Leping Melon, Wu Min-Fu, Li Sha, Xu Zhen-Lin, Ye Hong
Food and Machinery
In order to determine the nutritional quality and antioxidant activity of melon seed oil, the oil was extracted from the dried Leping melon seeds seed by solvent method, and its basic physical and chemical indexes were measured. The fatty acid composition, triglyceride, tocopherol, and sterol composition of melon seed oil were analyzed by the method of GC(gas chromatography) and LC(liquid chromatography), and its antioxidant activity was evaluated. The results showed that the basic physical and chemical indexes of Leping melon seed oil met the national standard of edible oil; fatty acid analysis revealed that the content of unsaturated fatty acid …
Ethanol Fractional Purification, Physicochemical Properties And Antioxidant Activity Of Polysaccharides From Glehnia Radix,
2020
College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology,Shijiazhuang, Hebei 050018 , China
Ethanol Fractional Purification, Physicochemical Properties And Antioxidant Activity Of Polysaccharides From Glehnia Radix, Jing Yong-Shuai, Jin Shan, Zhang Dan-Shen, Zhang Rui-Juan, Wang Fei-Fan, Zheng Yu-Guang, Wu Lan-Fang
Food and Machinery
To study the physicochemical properties and antioxidant activity of ethanol-graded polysaccharides of Glehnia Radix. Four kinds of polysaccharides of Glehnia Radix (GLP-30, GLP-50, GLP-70, GLP-residual) were fractionated and purified by water extraction and alcohol precipitation. Fourier transform infrared spectroscopy, high performance liquid chromatography, and gel permeation chromatography, scanning electron microscopy, and differential scanning calorimetry-thermogravimetric analysis were used to evaluate the physicochemical properties and structure characteristics of polysaccharides. The antioxidant activities were also studied. The four polysaccharides of Glehnia Radix have the typical groups of polysaccharides, but the results of differential scanning calorimetry are quite different, which may be due …
Optimization Of Extraction Process And Quality Analysis Of Pseudosciaena Crocea Liver Oil By Response Surface Methodology,
2020
South China Sea Fisheries Research Institute of Chinese Academy of Fishery Sciences, Key Laboratoryof Aquatic Products Processing, Ministry of Agriculture and Rural Areas, Guangzhou, Guangdong 510300 ,China ；College of Food Sciences and Technology, Shanghai Ocean University, Shanghai 201306 , China
Optimization Of Extraction Process And Quality Analysis Of Pseudosciaena Crocea Liver Oil By Response Surface Methodology, Dou Xin, Wu Yan-Yan, Yang Xian-Qing, Hu Xiao, Wang Yue-Qi
Food and Machinery
The large yellow croaker liver was used as the raw material, and the optimal protease was used to extract and extract the large yellow croaker liver oil. Taking the large yellow croaker liver oil extraction rate as an evaluation index, the best enzymatic extraction process was determined through single-factor experiments and response surface experiments. The extraction rate, quality, and fatty acid composition of the large yellow croaker liver oil were compared with those obtained by light alkali method. The results showed that the best enzymatic extraction conditions were as followed: for large yellow croaker liver was using neutral protease, the …
Effects Of Different Pretreatment On The Quality Of Sweet Potato Leaves With Heat Pump Drying,
2020
School of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023 , China
Effects Of Different Pretreatment On The Quality Of Sweet Potato Leaves With Heat Pump Drying, Yang Yu, Ren Guang-Yue, Shi Ya-Nan, Liu Shu-Lin, Zhang Ya-Feng, Ma Li-Ping
Food and Machinery
In order to explore the quality change characteristics of sweet potato leaves during salinization, ultrasonic, and their combined pretreatment, the physicochemical properties of sweet potato leaves during heat pump drying under different pretreatment processes were studied. The results showed that when the POD enzyme after drying was low in suitability and strong in antioxidant capacity, with 4% of salt concentration, Under the control of these conditions, the rehydration of sweet potato leaves was generally higher than that of others. Moreover, the drying time was the shortest and the comprehensive score was the highest.
Recent Advance In Research Of Chitin In The Field Of Food Science,
2020
College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, Henan 450000 ,China ；Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zhengzhou, Henan 450000 , China ；Henan Collaborative Innovation Center for Food Production and Safety, Zhengzhou, Henan 450000 , China
Recent Advance In Research Of Chitin In The Field Of Food Science, Wang Yun-Tao, Yang Fang, Li Bin, Bai Yan-Hong
Food and Machinery
This review summarizes the latest research of chitin in food field, including the application of chitin film as food packaging materials, the application of chitin microspheres in immobilization, adsorption and separation of macromolecules, the preparation of nano chitin and its application in emulsification, regulation of food texture, antibacterial function, and health promoting effect, the new method for preparing chitin oligosaccharides.
Research Progress On The Main Components And Comprehensive Utilization Of Camellia Oleifera Cake,
2020
The Key Laboratory of Special Medical Food Processing in Hunan Province, Changsha, Hunan 410004 ,China ；The Institute of Food Science and Engineering in Central South University of Forestry andTechnology, Changsha, Hunan 410004 , China
Research Progress On The Main Components And Comprehensive Utilization Of Camellia Oleifera Cake, Liu Chu-Cen, Fei Xiao-Fang, Zhou Wen-Hua, Mo Hua
Food and Machinery
In this paper,the extraction and application of protein, polysaccharide, polyphenol and tea saponin from Camellia oleifera cake were reviewed. It is found that Camellia oleifera meal has high processing and utilization value, which can be used as new food raw material or feed, chemical industry, light industry and other important raw materials. On the whole, the by-products of Camellia oleifera have certain potential in the development and application direction of special medical food and health food.
Genomic Insights Into Speciation History And Local Adaptation Of An Alpine Aspen In The Qinghai–Tibet Plateau And Adjacent Highlands,
2020
Sichuan University
Genomic Insights Into Speciation History And Local Adaptation Of An Alpine Aspen In The Qinghai–Tibet Plateau And Adjacent Highlands, Jia-Lang Li, Lin-Ling Zhong, Jing Wang, Tao Ma, Kang-Shan Mao, Lei Zhang
Aspen Bibliography
Natural selection serves as an important agent to drive and maintain interspecific divergence. Populus rotundifolia Griff. is an alpine aspen species that mainly occurs in the Qinghai–Tibet Plateau (QTP) and adjacent highlands, whereas its sister species, P. davidiana Dode, is distributed across southwest and central to northeast China in much lower altitude regions. In this study, we collected genome resequencing data of 53 P. rotundifolia and 42 P. davidiana individuals across their natural distribution regions. Our population genomic data suggest that the two species are well delimitated in the allopatric regions, but with hybrid zones in their adjacent region in …
