Other Plant Sciences Commons^™

The Ecological Responses To Hydroperiod Of Wetland Plant Species Determined By Manipulated Soil Surface Elevation (Marsh Organs), Brandon Wolff

LSU Master's Theses

As sea level rise, subsidence, and abandonment of natural deltaic processes due to a highly engineered Mississippi River continue to threaten Louisiana’s coastal wetlands, the need for a system-wide understanding of natural wetland land-building and preservation processes has never been greater. A key component of any wetland is the ever-changing water environment that periodically floods and dries the marsh platforms. The flooding depth, duration, and frequency, known as the hydroperiod, along with salinity and soil fertility are key determining factors of vegetation and marsh types at a particular location. Different types of vegetation will have different growth characteristics such as …

Soil Carbon And Nitrogen After Eight Years Of Rotational Grazing In The Nebraska Sandhills Meadows, Gandura O. Abagandura, Martha Mamo, W. H. Schacht, Aaron Shropshire, Jerry Volesky

Department of Agronomy and Horticulture: Faculty Publications

Grassland provides many ecosystem services; therefore, sustainable management practices of grassland are crucial for maintaining and enhancing its ecosystem health and resilience. Rotational grazing at a high stocking density (a.k.a., ultrahigh stocking density) is purported to sequester greater amounts of carbon (C) in grassland soils than rotational grazing at low stocking densities. This study was conducted in the Nebraska Sandhills meadows for eight years to evaluate how rotational grazing with different stocking densities can affect soil C and total nitrogen (TN) in bulk soils, soil organic matter fractions, and sequestration rate. The grazing management included a high stocking density with …

Genome-Wide Association And Genomic Prediction For Iron And Zinc Concentration And Iron Bioavailability In A Collection Of Yellow Dry Beans, Paulo Izquierdo, Rie Sadohara, Jason Wiesinger, Raymond Glahn, Carlos Urrea, Karen Cichy

Department of Agronomy and Horticulture: Faculty Publications

Dry bean is a nutrient-dense food targeted in biofortification programs to increase seed iron and zinc levels. The underlying assumption of breeding for higher mineral content is that enhanced iron and zinc levels will deliver health benefits to the consumers of these biofortified foods. This study characterized a diversity panel of 275 genotypes comprising the Yellow Bean Collection (YBC) for seed Fe and Zn concentration, Fe bioavailability (FeBio), and seed yield across 2 years in two field locations. The genetic architecture of each trait was elucidated via genome-wide association studies (GWAS) and the efficacy of genomic prediction (GP) was assessed. …

Nebline, January/February 2024

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2023 Extension Highlights

4-H Programs Engaged 39,421 Youth

Nebraska Extension’s Strategic Direction

Enjoy a Comforting Bowl of Soup in January & Beyond by Kayla Colgrove

Recipe of the Month: Multi-Cooker Tuscan Soup by Kayla Colgrove

Garden Guide: Things to Do This Month

Extension’s 2024 Master Gardener Volunteer Training Begins Soon

Upcoming Green Industry Conferences

ProHort Lawn & Landscape Update

2024 Pesticide Applicator Trainings

Crop Production Clinics

Extension Workshop Planned on Managing Farmland and Transition Planning

Water Quality: Nebraska On-Farm Research by John Nelson

House Centipedes by Kait Chapman

Early Childhood Prep Academy: Leaders Today, Learners Tomorrow by Hayley Jackson

Heart …

Should Crop Sequences In Western Australia Include More Lupins?, Christophe D'Abbadie, Sud Kharel, Ross Kingwell, Amir Abadi Ghadim

Grain and Other Field Crops Research Articles

Reducing greenhouse gas emissions is an increasing priority for Australian grain producers. Could substituting lupins for canola, as a rotational break crop, enable farmers to reduce their emissions by less use of nitrogenous fertilisers?

Aim

This study aims to identify if replacing canola with lupins in rotations at a range of locations in Western Australia’s grainbelt is environmentally and economically attractive.

Methods.

Bio-economic simulation modelling is used to examine the gross margins and emissions associated with replacement of canola by lupins at 14 locations in the grainbelt of Western Australia in variousland use sequences.

Key results

Replacing canola with lupins …

Trends And Patterns Of Plant Conservation Research In Borneo: A Review, Rizmoon Nurul Zulkarnaen, Sabri Mohd. Ali, Daniele Cicuzza

ASEAN Journal on Science and Technology for Development

Borneo hosts exceptional plant diversity, including numerous endemic species, but faces significant threats from rapid habitat loss driven by deforestation and land-use changes. This study aimed to analyze research trends and forecast future directions through a bibliometric analysis of Scopus data spanning from 1914 to 2023. The bibliometric analysis included publication outputs, citation patterns, thematic mapping, and keyword co-occurrence. We used VOSviewer to visualize bibliometric networks and the Bibliometrix package in R to perform advanced bibliometric analysis and interactive data exploration. The analysis revealed a continuous rise in publications (998 documents), with the Journal of Ecology identified as the most …

Hop Cone Drying For The Small Grower: Temperature And Airflow Considerations, Stacy A. Adams, David M. Mabie, Michael F. Kocher, David Jones

Department of Agronomy and Horticulture: Faculty Publications

Small hop growers without nearby processors for cone stripping and drying must attempt to do so on their own farm. Challenges exist for self-built drying systems, including drying capacity, processing speed, airflow direction, and maintaining quality during drying. Research-based recommendations are given for optimal temperature, sizing of drying vessel, maximum cone depth, and influences associated with airflow on processing uniformity and cone quality are presented.

Silicon Fertilization In Cool-Season Turfgrasses, Cheng Qian

Theses and Dissertations--Plant and Soil Sciences

Previous studies of the benefits of silicon (Si) supplementation in turfgrass have yielded inconsistent results. This dissertation aimed to assess the benefits if Si supplementation in cool-season turfgrass under more well controlled conditions than many previous studies. The first study assessed the effect of Si supplementation on biomass production and Si accumulation of tall fescue (Festuca arundinacea) and bentgrass (Agrostis stolonifera) in buffered Hoagland’s media (pH 6) with four sodium silicate (Na2SiO3) treatments (0, 0.5, 1, 2, and 4 mM Si). The two species responded differently to Si supplementation in terms of biomass. Bentgrass biomass was …

Early Season Biomass And Weather Enable Robust Cereal Rye Cover Crop Biomass Predictions, Alexandra M. Huddell, Brian Needleman, Eugene P. Law, Victoria J. Ackroyd, Muthukumar V. Bagavathiannan, Kevin Bradley, Adam S. Davis, Jeffrey A. Evans, Wesley Jay Everman, Michael Flessner, Nicholas Jordan, Lauren M. Schwartz-Lazaro, Ramon G. Leon, John L. Lindquist, Jason K. Norsworthy, Lovreet S. Shergill, Mark Vangessel, Steven B. Mirsky

Department of Agronomy and Horticulture: Faculty Publications

Farmers need accurate estimates of winter cover crop biomass to make informed decisions on termination timing or to estimate potential release of nitrogen from cover crop residues to subsequent cash crops. Utilizing data from an extensive experiment across 11 states from 2016 to 2020, this study explores the most reliable predictors for determining cereal rye cover crop biomass at the time of termination. Our findings demonstrate a strong relationship between early-season and late-season cover crop biomass. Employing a random forest model, we predicted late-season cereal rye biomass with a margin of error of approximately 1,000 kg ha⁻¹ based on …