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University of Nebraska - Lincoln

2019

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Do Coffee Agroforestry Systems Always Improve Soil Carbon Stocks Deeper In The Soil?—A Case Study From Turrialba, Costa Rica, Nilovna Chatterjee, P. K. Ramachandran Nair, Vimala D. Nair, Abhishek Bhattacharjee, Elias De Melo Virginio Filho, Rheinhold G. Muschler, Martin R.A. Noponen Dec 2019

Do Coffee Agroforestry Systems Always Improve Soil Carbon Stocks Deeper In The Soil?—A Case Study From Turrialba, Costa Rica, Nilovna Chatterjee, P. K. Ramachandran Nair, Vimala D. Nair, Abhishek Bhattacharjee, Elias De Melo Virginio Filho, Rheinhold G. Muschler, Martin R.A. Noponen

Department of Agronomy and Horticulture: Faculty Publications

Shaded perennial agroforestry systems (AFS) are regarded as desirable land‐use practices that improve soil carbon sequestration. However, most studies assume a positive correlation between above ground and below ground carbon without considering the effect of past and current land management, textural variations (silt and clay percentage), and such other site‐specific factors that have a major influence on the extent of soil C sequestration. We assessed SOC stock at various depths (0–10, 10–30, 30–60, and 60–100 cm) in shaded perennial coffee (Coffea arabica L.) AFS in a 17‐ year‐old experimental field at the Centro Agronómico Tropical de Investigación y Enseñanza, (9°53′44′′ …

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A Survey Of Soil Properties Affecting Vegetation Establishment Along Nebraska Highways, Shad D. Mills Dec 2019

A Survey Of Soil Properties Affecting Vegetation Establishment Along Nebraska Highways, Shad D. Mills

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

Vegetation along roadsides is important to prevent soil erosion, provide habitat and filter water running off the road. Along some highways in Nebraska vegetation does not readily establish and persist. It is thought that sodium and bulk density issues are the driving factor behind the lack of vegetation. After a construction project, the shoulder is seeded into the compacted soil, and salts can accumulate in the soil due to deicing agents being used during the winter. The purpose of our study was to determine if the bulk density and sodium are the driving factors of the vegetation cover. We also …

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Co2 Flux And C Balance Due To The Replacement Of Bare Soil With Agro-Ecological Service Crops In Mediterranean Environment, Emanuele Radicetti, O. Adewale Osipitan, Ali Reza Safahani Langeroodi, Sara Marinari, Roberto Mancinelli Apr 2019

Co2 Flux And C Balance Due To The Replacement Of Bare Soil With Agro-Ecological Service Crops In Mediterranean Environment, Emanuele Radicetti, O. Adewale Osipitan, Ali Reza Safahani Langeroodi, Sara Marinari, Roberto Mancinelli

Haskell Agricultural Laboratory (Northeast Research and Extension Center)

Intensive agriculture practices often results in decomposition of organic matter, thus causing soil CO2 emissions. Agro-ecological service crop could be profitably cultivated to improve soil characteristics and reduce CO2 emissions under Mediterranean environment. Two-year field trials were conducted in central Italy. The treatments were three agro-ecological service crops (hairy vetch, oat, and oilseed rape) and a no-service cover. Plant development, soil characteristics, and CO2 emissions were measured. Oat and oilseed rape showed a rapid growth, while hairy vetch started to grow rapidly only after the cold period. Soil CO2 emissions trend was similar among the agro-ecological …

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Irrigation Water Quality—A Contemporary Perspective, Arindam Malakar, Daniel D. Snow, Chittaranjan Ray Jan 2019

Irrigation Water Quality—A Contemporary Perspective, Arindam Malakar, Daniel D. Snow, Chittaranjan Ray

Nebraska Water Center: Faculty Publications

In the race to enhance agricultural productivity, irrigation will become more dependent on poorly characterized and virtually unmonitored sources of water. Increased use of irrigation water has led to impaired water and soil quality in many areas. Historically, soil salinization and reduced crop productivity have been the primary focus of irrigation water quality. Recently, there is increasing evidence for the occurrence of geogenic contaminants in water. The appearance of trace elements and an increase in the use of wastewater has highlighted the vulnerability and complexities of the composition of irrigation water and its role in ensuring proper crop growth, and …

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Evaluation Of The Effects Of Biochar On Diet Digestibility And Methane Production From Growing And Finishing Steers, Thomas Winders, Melissa L. Jolly, Hannah C. Wilson, James C. Macdonald, Galen E. Erickson, Andrea K. Watson Jan 2019

Evaluation Of The Effects Of Biochar On Diet Digestibility And Methane Production From Growing And Finishing Steers, Thomas Winders, Melissa L. Jolly, Hannah C. Wilson, James C. Macdonald, Galen E. Erickson, Andrea K. Watson

Department of Animal Science: Faculty Publications

The objectives of these studies were to evaluate the effects of biochar (0%, 0.8%, or 3% of diet dry matter) on diet digestibility and methane and carbon dioxide production from cattle on growing and finishing diets. The growing diet consisted of 21% brome hay, 20% wheat straw, 30% corn silage, 22% wet distillers grains plus solubles, and 7% supplement. The finishing diet consisted of 53% dry-rolled corn, 15% corn silage, 25% wet distillers grains plus solubles, and 7% supplement. In both trials biochar replaced fine ground corn in the supplement. Six crossbred steers (initial body weight [BW] 529 kg; SD …

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Pine-Wood Derived Nanobiochar For Removal Of Carbamazepine From Aqueous Media: Adsorption Behavior And Influential Parameters, Mitra Naghdi, Mehrdad Taheran, Rama Pulicharla, Tarek Rouissi, Satinder K. Brar, M. Verma, R. Y. Surampalli Jan 2019

Pine-Wood Derived Nanobiochar For Removal Of Carbamazepine From Aqueous Media: Adsorption Behavior And Influential Parameters, Mitra Naghdi, Mehrdad Taheran, Rama Pulicharla, Tarek Rouissi, Satinder K. Brar, M. Verma, R. Y. Surampalli

Department of Civil and Environmental Engineering: Faculty Publications

In recent years, application of biochar for removal of pollutants from aqueous solutions has been of interest due to favorable physicochemical properties and availability of feedstock. However, adsorption behavior has been reported only for raw and micro biochar particles and taking advantage of biochar nanoparticles, which offer superior specific surface area, did not receive any attention. The objective of this study was to investigate the adsorption efficiency of produced nanobiochar from pinewood. For this purpose, removal of carbamazepine (CBZ), a globally prescribed pharmaceutical, at very low concentrations (0.5–20 ppb) on as-produced nanobiochar with average particle size of 60 nm was …

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Biochar Supplementation In Growing And Finishing Diets, Tommy M. Winders, Collin B. Freeman, Brittney A. Mark Mark, Melissa L. Jolly-Breithaupt, Hannah C. Hamilton, Jim C. Macdonald, Galen E. Erickson, Andrea K. Watson Jan 2019

Biochar Supplementation In Growing And Finishing Diets, Tommy M. Winders, Collin B. Freeman, Brittney A. Mark Mark, Melissa L. Jolly-Breithaupt, Hannah C. Hamilton, Jim C. Macdonald, Galen E. Erickson, Andrea K. Watson

Nebraska Beef Cattle Reports

Two metabolism studies were conducted to evaluate the effects of biochar (0, 0.8, or 3% of diet dry matter) on digestibility and methane production in growing and finishing diets. Intake was not affected by biochar inclusion in the growing diet and increased with 0.8% biochar inclusion in the finishing study. Digestibility tended to increase quadratically with biochar inclusion in the growing study while digestibility tended to linearly decrease with biochar inclusion in the finishing study. Methane production (g/d) decreased 10.7% in the growing study and 9.9% in the finishing study with 0.8% biochar compared to no biochar. Methane production was …

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Dedicated Bioenergy Crops And Water Erosion, Bharat Sharma Acharya, Humberto Blanco-Canqui, Robert B. Mitchell, Richard Cruse, David Laird Jan 2019

Dedicated Bioenergy Crops And Water Erosion, Bharat Sharma Acharya, Humberto Blanco-Canqui, Robert B. Mitchell, Richard Cruse, David Laird

Department of Agronomy and Horticulture: Faculty Publications

Information on the water quality impact of perennial warmseason grasses (WSGs) when grown in marginal lands as dedicated energy crops is limited. We studied how WSGs affected runoff, sediment, and nutrient losses and related near-surface soil properties to those of no-till corn (Zea mays L.) on an eroded soil in southwestern Iowa and a center pivot corner in east-central Nebraska. The experiment at the eroded soil was established in 2012, and treatments included ‘Liberty’ switchgrass (Panicum virgatum L.) and no-till continuous corn. The experiment at the pivot corner was established in 2013 with ‘Liberty’ switchgrass, ‘Shawnee’ switchgrass, low-diversity grass …

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Feasibility Of Electromagnetic Soil Heating Using Magnetic Nanoparticle-Coated Geotextiles, Ijung Kim, Caroline Best, Seunghee Kim Jan 2019

Feasibility Of Electromagnetic Soil Heating Using Magnetic Nanoparticle-Coated Geotextiles, Ijung Kim, Caroline Best, Seunghee Kim

Department of Civil and Environmental Engineering: Faculty Publications

This paper reports a new way of soil heating using a woven and a non-woven geotextile coated with magnetic nanoparticles (MNPs) that generate heat when exposed to a magnetic field. The MNPs were synthesised in the presence of the geotextile, creating and simultaneously coating the MNPs onto the geotextile. The fixation of MNPs on the geotextile was confirmed by direct observation by way of scanning electromagnetic images and an induction heating test. When the prepared geotextile was placed inside a soil medium, heat was generated immediately as the geotextile was exposed to a high-frequency alternating magnetic field, subsequently transferring heat …

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2019 Annual Report, Ben Bohall, John Erixson Jan 2019

2019 Annual Report, Ben Bohall, John Erixson

Nebraska Forest Service: Publications

No abstract provided.

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Scientometric Analysis Of Biotechnology Research Output In India During 2008-2017, Abhishek Kumar Sharma, Bharat Prasad Dwivedee, Surbhi Soni, Deepak N. Kapoor, Varsha Patil Jan 2019

Scientometric Analysis Of Biotechnology Research Output In India During 2008-2017, Abhishek Kumar Sharma, Bharat Prasad Dwivedee, Surbhi Soni, Deepak N. Kapoor, Varsha Patil

Library Philosophy and Practice (e-journal)

In this study a scientometric analysis of the biotechnology research output of India during 2008-2017 was performed based on the information available in SCOPUS database. This study analyses the research output of India in biotechnology research on different parameters including the growth, global publication share and rank, contribution of major international collaborative partners and subject areas, contribution and citation impact of the most productive authors, institutions and journals. The United States ranks first in terms of number of publications, h-index and average citations per paper. A total of 5573 papers were published by India during 2008-2017, which received 80530 citations …

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