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Articles 1 - 12 of 12
Full-Text Articles in Entire DC Network
Biochar And Microbial Soil Amendment Effects On Post-Mined Soil For Pinus Echinata Restoration In A Changing Climate, Casey Iwamoto, Courtney Siegert, Joshua J. Granger, Krishna P. Poudel, Adam Polinko, Zachary Freedman
Biochar And Microbial Soil Amendment Effects On Post-Mined Soil For Pinus Echinata Restoration In A Changing Climate, Casey Iwamoto, Courtney Siegert, Joshua J. Granger, Krishna P. Poudel, Adam Polinko, Zachary Freedman
Forest & Wildlife Research Center Publications and Scholarship
In the face of climate uncertainty, there is a need to understand how the success of current restoration efforts may be impacted in the future. Combinations of biochar and microbial soil amendments were used in a greenhouse study to quantify potential benefits for soil health, water quality, and tree growth parameters in post-mined soil. This dataset represents a comprehensive 6-month greenhouse experiment for shortleaf pine restoration with consideration to climate change under dry, average, and wet moisture regimes. Soil amendments were applied to one year old seedlings replicated across moisture treatments including: biochar, microbial, mixture of biochar and microbial, unamended …
Soil Health And Remediation For Urban Gardens In Utah, Melissa Chilinski
Soil Health And Remediation For Urban Gardens In Utah, Melissa Chilinski
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
Urban environments are at an increased risk of soil contamination and poor soil health due to anthropogenic causes. As healthy farmland is developed, new urban farmers and gardeners are often left growing food on unwanted land with unknown histories of previous use. Varied research and methods for obtaining healthy soils can cause new growers to make decisions that negatively impact soil health and fertility, or on the other hand, conflicting information can cause individuals to become unnecessarily fearful of common soil contaminants and their effect on human health. Common soil contaminants, like trace metals (often referred to as heavy metals) …
Exploring Soil-Tree Interactions After Applying Organic Matter Amendments To Peach Orchards In The Subtropical Climate Of The Southeastern United States, Brian Lawrence
All Dissertations
Soil disturbance from the cultivation and intensive management of orchards in hot and humid subtropical climates can reduce soil organic matter (OM). This research explored how the addition of OM amendments impact soil and tree parameters in two field studies and how proximity to OM may elicit unique genomic response of peach roots in a split-root pot study. The first field study applied two rates of compost (1x and 2x) and subsequently reduced fertilizer applications annually to a virgin and replant orchard location. While both compost rates successfully replaced fertilizers, only the 2x rate in the replant location increased soil …
How Much Margin Is Left For Degrading Agricultural Soils? The Coming Soil Crises, Maheteme Gebremedhin, Mark S. Coyne, Karamat R. Sistani
How Much Margin Is Left For Degrading Agricultural Soils? The Coming Soil Crises, Maheteme Gebremedhin, Mark S. Coyne, Karamat R. Sistani
Plant and Soil Sciences Faculty Publications
Agricultural soils are in peril. Multiple lines of observational and empirical evidence suggest that we are losing the world’s fertile soils at an alarming rate, worsening the on-going global food crisis. It is increasingly clear that the risk of soil crises driven by erratic precipitation, warming air, and farming mismanagement is coming sooner rather than later. At this critical time, society cannot avoid looking for ways to curb soil crises. We argue that now is the right time for science-based mitigation strategies and new insights to protect soils. We offer four research priority areas that society needs to address. Arresting …
An Evaluation Of Carbon Indicators Of Soil Health In Long-Term Agricultural Experiments, D. Liptzin, C. E. Norris, S. B. Cappellazzi, G. Macbean, Andrew E. Suyker Et Al.
An Evaluation Of Carbon Indicators Of Soil Health In Long-Term Agricultural Experiments, D. Liptzin, C. E. Norris, S. B. Cappellazzi, G. Macbean, Andrew E. Suyker Et Al.
School of Natural Resources: Faculty Publications
No abstract provided.
Evaluation Of A Novel Approach For Assessing Biological Activity In Agricultural Soils, Karla Melgar
Evaluation Of A Novel Approach For Assessing Biological Activity In Agricultural Soils, Karla Melgar
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Soil health is a key factor impacting soil resilience and fertility in crop production systems. Favorable soil physical and biological conditions facilitate plant nutrient absorption and nutrient cycling. Demonstrating to farmers the impacts and changes in soil biological activity under different soil management practices has been a challenge due to the limited availability of inexpensive tools for quantifying this component of soil health. The primary goal of this study was to present a simple and readily accessible tool for evaluating soil biological activity to promote the use of organic amendments in crop fields. Research plots were established in two studies …
Soil Health Beneath Amended Switchgrass: Effects Of Biochar And Nitrogen On Active Carbon And Wet Aggregate Stability, Priya Saini, Jason P. De Koff, Richard Link, Chris Robbins
Soil Health Beneath Amended Switchgrass: Effects Of Biochar And Nitrogen On Active Carbon And Wet Aggregate Stability, Priya Saini, Jason P. De Koff, Richard Link, Chris Robbins
Agricultural and Environmental Sciences Faculty Research
Perennial crops, like switchgrass (Panicum virgatum L.), are important for bioenergy production and long-term carbon sequestration. Biochar, a byproduct of certain bioenergy production processes, is also identified as a potential tool for carbon sequestration and soil quality improvements, especially in marginal soils. Despite the focus on switchgrass, soil health characteristics under switchgrass production for biomass are unclear. This study focused on identifying the effects of four N rates (0, 17, 34, and 67 kg N ha−1) and biochar application (0 and 9 Mg ha−1) in a 3-year switchgrass field study on a silt loam soil. Soil active carbon (AC) and …
A Research Road Map For Responsible Use Of Agricultural Nitrogen, Michael Udvardi, Frederick E. Below, Michael J. Castellano, Alison J. Eagle, Ken E. Giller, Jagdish Kumar Ladha, Xuejun Liu, Tai Mcclellan Maaz, Barbara Nova-Franco, Nandula Raghuram, G. Philip Robertson, Sonali Roy, Malay Saha, Susanne Schmidt, Mechthild Tegeder, Larry M. York, John W. Peters
A Research Road Map For Responsible Use Of Agricultural Nitrogen, Michael Udvardi, Frederick E. Below, Michael J. Castellano, Alison J. Eagle, Ken E. Giller, Jagdish Kumar Ladha, Xuejun Liu, Tai Mcclellan Maaz, Barbara Nova-Franco, Nandula Raghuram, G. Philip Robertson, Sonali Roy, Malay Saha, Susanne Schmidt, Mechthild Tegeder, Larry M. York, John W. Peters
Agricultural and Environmental Sciences Faculty Research
Nitrogen (N) is an essential but generally limiting nutrient for biological systems. Development of the Haber-Bosch industrial process for ammonia synthesis helped to relieve N limitation of agricultural production, fueling the Green Revolution and reducing hunger. However, the massive use of industrial N fertilizer has doubled the N moving through the global N cycle with dramatic environmental consequences that threaten planetary health. Thus, there is an urgent need to reduce losses of reactive N from agriculture, while ensuring sufficient N inputs for food security. Here we review current knowledge related to N use efficiency (NUE) in agriculture and identify research …
Biochar Amendment For Enhanced Nitrogen Use, Soil Health, And Plant Growth, Xiuwen Li
Biochar Amendment For Enhanced Nitrogen Use, Soil Health, And Plant Growth, Xiuwen Li
Masters Theses
Biochar is considered as a soil amendment to improve the resilience and productivity of agricultural systems. In particular, co-application of biochar and nitrogen (N) fertilizer has the potential to reduce N losses compared to applying synthetic N alone. However, the positive effects of biochar amendment are tightly linked to several factors. Our overall objective was to determine the effect of biochar types, application methods, and biochar rate on soil health, especially on soil N dynamics, and forage production through bench - and field-scale experiments. A 60-day bench-scale experiment was conducted to study the effect of amending soil with the two …
Going Back To The Soil: An Integrated Approach To Farming., Renée V. Christie
Going Back To The Soil: An Integrated Approach To Farming., Renée V. Christie
Theses and Dissertations (Comprehensive)
Agricultural productivity is often constrained by nutrient availability; as such, copious amounts of synthetic fertilizers are applied to maintain productivity. However, the intensive use of synthetic fertilizers has reduced the capacity of the soil to carry out crucial roles such as nutrient cycling because of shifts in the microbial community composition and structure. In addition, much of the applied synthetic fertilizers become lost to the environment through run-off, which contributes to soil degradation. With the increasing demand on agricultural systems to provide food and fibre and the adverse impacts of agricultural production on the soil resource, amendments that support soil …
Soil Health Effects And Stakeholder Perceptions Of Manure And Woody Biomass Application To Cropland In Nebraska, Linda R. Schott
Soil Health Effects And Stakeholder Perceptions Of Manure And Woody Biomass Application To Cropland In Nebraska, Linda R. Schott
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Organic products that have historically been viewed as waste products may improve soil health by adding carbon (C) and nutrients to soil. Two such products are woodchips, generated from forest or rangeland management activities, and livestock manure. In Nebraska, eastern redcedar (Juniperus virginiana L.) is a native but invasive tree species inhibiting rangeland productivity. Livestock manure that is underutilized while inorganic fertilizers are imported for crop production presents a water quality risk by contributing to local- and regional-scale nutrient imbalances. Increasing the responsible use of livestock manure in crop fertility programs to improve sustainability of both livestock and crop farms …
Assessing Kiln-Produced Hardwood Biochar For Improving Soil Health In A Temperate Climate Agricultural Soil, Emily J. Cole
Assessing Kiln-Produced Hardwood Biochar For Improving Soil Health In A Temperate Climate Agricultural Soil, Emily J. Cole
Doctoral Dissertations
Soil quality has become a major factor used in assessing sustainable land management and the overall environmental quality, food security, and economic viability of agricultural lands. Recently, biochar has been touted as having many potential uses as a soil amendment for improving soil quality, specifically improving cation exchange capacity, pH and nutrient availability. However, soil biology also plays a significant role in biogeochemical processes that influence soil health and should be included in a more comprehensive study of soil health. This dissertation describes 4 projects within the same 3-year field study with the cumulative purpose of better understanding the effect …