Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 18 of 18
Full-Text Articles in Life Sciences
Multi-Dimensional Leaf Phenotypes Reflect Root System Genotype In Grafted Grapevine Over The Growing Season, Zachery N. Harris, Mani Awale, Niyati Bhaakta, Daniel H. Chitwood, Anne Fennell, Emma Frawley, Laura L. Klein, Laszlo G. Kovacs, Misha Kwasniewski, Jason P. Londo, Qin Ma, The Ohio State University Miogicovsky, Joel F. Swift, Allison J. Miller
Multi-Dimensional Leaf Phenotypes Reflect Root System Genotype In Grafted Grapevine Over The Growing Season, Zachery N. Harris, Mani Awale, Niyati Bhaakta, Daniel H. Chitwood, Anne Fennell, Emma Frawley, Laura L. Klein, Laszlo G. Kovacs, Misha Kwasniewski, Jason P. Londo, Qin Ma, The Ohio State University Miogicovsky, Joel F. Swift, Allison J. Miller
Agronomy, Horticulture and Plant Science Faculty Publications
Modern biological approaches generate volumes of multi-dimensional data, offering unprecedented opportunities to address biological questions previously beyond reach owing to small or subtle effects. A fundamental question in plant biology is the extent to which below-ground activity in the root system influences above-ground phenotypes expressed in the shoot system. Grafting, an ancient horticultural practice that fuses the root system of one individual (the rootstock) with the shoot system of a second, genetically distinct individual (the scion), is a powerful experimental system to understand below-ground effects on above-ground phenotypes. Previous studies on grafted grapevines have detected rootstock influence on scion phenotypes …
The Medium-Term Impacts Of Integrated Crop–Livestock Systems On Crop Yield And Economic Performance, Teerath Singh Rai, Thandiwe Nleya, Sandeep Kumar, Peter Saxton, Tong Wang, Yubing Fan
The Medium-Term Impacts Of Integrated Crop–Livestock Systems On Crop Yield And Economic Performance, Teerath Singh Rai, Thandiwe Nleya, Sandeep Kumar, Peter Saxton, Tong Wang, Yubing Fan
Agronomy, Horticulture and Plant Science Faculty Publications
Integrated crop–livestock (ICL) systems are diverse production systems that can improve resource utilization through spatially or temporally rotating land among crop, livestock, and pasture uses. However, research on whether the enhanced resource utilization translates to greater crop productivity is still warranted. A field experiment was initiated at South Dakota State University in 2016 to determine the impacts of integrating cover crops and livestock grazing into a crop rotation of oat (Avena sativa L.)–maize (Zea mays L.)–soybean [Glycine max (L.) Merr.]. The objectives were to (a) determine the medium-term (4–6 yr) impacts of cover crops and livestock grazing …
Cover Crops To Improve Soil Health In The North American Great Plains, Augustine K. Obour, Logan M. Simon, Jonathon D. Holman, Patrick M. Carr, Meagan Schipanski, Steven Fonte, Rajan Ghimire, Thandiwe Nleya, Humberto Blanco-Canqui
Cover Crops To Improve Soil Health In The North American Great Plains, Augustine K. Obour, Logan M. Simon, Jonathon D. Holman, Patrick M. Carr, Meagan Schipanski, Steven Fonte, Rajan Ghimire, Thandiwe Nleya, Humberto Blanco-Canqui
Agronomy, Horticulture and Plant Science Faculty Publications
Rotating cereal crops (e.g., wheat [Triticum aestivum L.] with a 10- to 21-mo summer fallow period [fallow]) is a common farming practice in dryland (rainfed) agricultural regions. Fallow is associated with several challenges including low precipitation storage efficiency, depletion of soil organic carbon (SOC), loss of soil fertility, little crop residue retention and soil erosion, and few control options for herbicide-resistant (HR) weeds. The inability to effectively control HR weeds poses a major challenge to maintaining soil and water conservation practices such as no-tillage, as some producers are considering tillage to control weeds. Cover crop (CC) integration into wheat-based …
The Custom Service Industry's Role In Precision Agriculture Adoption: A Literature Review, Scott W. Fausti, Bruce Erickson, David Clay, Sharon Clay
The Custom Service Industry's Role In Precision Agriculture Adoption: A Literature Review, Scott W. Fausti, Bruce Erickson, David Clay, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
This literature review focuses on the role of the precision agriculture (PA) custom services industry in facilitating farmer adoption of PA technology. Based on the review, a series of stylized facts are developed that characterize the custom services industry's role in the PA adoption process in the United States. The literature suggests that increasing the availability of custom services in local agricultural production markets will positively influence the rate of PA adoption. Recent PA custom services industry field surveys, however, indicate that skilled labor, proficient in PA technology, is critical to develop and provide custom services needed to increase the …
Is The Custom Service Industry's Role In Precision Agriculture Linked To Workforce Development?, Scott W. Fausti, Bruce Erickson, David Clay, Sharon Clay
Is The Custom Service Industry's Role In Precision Agriculture Linked To Workforce Development?, Scott W. Fausti, Bruce Erickson, David Clay, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Retail dealership survey data suggests that the lack of a qualified precision agriculture (PA) workforce limits the ability of the PA service industry to provide technological knowledge and services to producers who have adopted PA technology. The key empirical findings suggest that retail dealerships have the greatest difficulty finding workers who have, a) the capability to operate and collect data using specialized PA technology, b) the capability to interpret and develop management strategies using PA generated data, and c) a basic generalized competency in PA technology and its applications. The perceived shortage of skilled workers suggests that there is a …
Data From A Public–Industry Partnership For Enhancing Corn Nitrogen Research, Curtis J. Ransom, Jason Clark, Gregory Mac Bean, Chris Bandura, Matthew E. Shafer, Newell R. Kitchen, Et.Al
Data From A Public–Industry Partnership For Enhancing Corn Nitrogen Research, Curtis J. Ransom, Jason Clark, Gregory Mac Bean, Chris Bandura, Matthew E. Shafer, Newell R. Kitchen, Et.Al
Agronomy, Horticulture and Plant Science Faculty Publications
Improving corn (Zeamays L.) N managementis pertinent to economic andenvironmental objectives. However, there are limited comprehensive data sources to develop and test N fertilizer decision aid tools across a wide geographic range of soil and weather scenarios. Therefore, a public-industry partnership was formed to conduct standardized corn N rate response field studies throughout the U.S. Midwest. This research was conducted using a standardized protocol at 49 site-years across eight states over the 2014–2016 growing seasons with many soil, plant, and weather related measurements. This note provides the data (found in supplemental files), outlines the data, summarizes key findings, and highlights …
Winter Cereal Rye Cover Crop Decreased Nitrous Oxide Emissions During Early Spring, Graig W. Reicks, David E. Clay, Sharon A. Clay, Deepak R. Joshi, Janet Moriles-Miller, Shaina Westhoff, Aaron Lee M. Daigh, Stephanie A. Bruggeman
Winter Cereal Rye Cover Crop Decreased Nitrous Oxide Emissions During Early Spring, Graig W. Reicks, David E. Clay, Sharon A. Clay, Deepak R. Joshi, Janet Moriles-Miller, Shaina Westhoff, Aaron Lee M. Daigh, Stephanie A. Bruggeman
Agronomy, Horticulture and Plant Science Faculty Publications
Despite differences between the cover crop growth and decomposition phases, few greenhouse gas (GHG) studies have separated these phases from each other. This study’s hypothesis was that a living cover crop reduces soil inorganic N concentrations and soil water, thereby reducing N2O emissions. We quantified the effects of a fall-planted living cereal rye (Secale cereale L.) cover crop (2017, 2018, 2019) on the following spring’s soil temperature, soil water, water-filled porosity (WFP), inorganic N, and GHG (N2O-N and CO2–C) emissions and compared these measurements to bare soil. The experimental design was a randomized …
Conservation Agriculture For Food Security And Climate Resilience In Nepal, Deepak R. Joshi, Rajan Ghimire, Tulsi Kharel, Umakant Mishrra, Sharon A. Clay
Conservation Agriculture For Food Security And Climate Resilience In Nepal, Deepak R. Joshi, Rajan Ghimire, Tulsi Kharel, Umakant Mishrra, Sharon A. Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Achieving the sustainable development goals of the United Nations requires innovations in agriculture and development of climate-smart and economically feasible approaches for smallholder farmers in developing countries. Historical climate data of Nepal, which include 116 yr since 1901, has shown an increasing trend for average temperature by 0.016 ˚C yr–1 whereas precipitation has shown a decreasing trend by 0.137 mm yr–1. Such weather trends could enhance glacier melt associated flooding, and delayed monsoon rainfalls negatively impacting the agricultural production. The Nepalese government is promoting conservation agriculture (CA) through development of low-cost technologies that can be used effectively in difficult terrains. …
Environmental Factors Associated With Nitrogen Fixation Prediction In Soybean, Andre Froes Borja Reis, Luiz Moror Rosso, Larry C. Purcell, Seth Naeve, Shaun N. Casteel, Peter Kovacs, Sotirios Archontoulis, Dan Davidson, Ignacio A. Ciampitti
Environmental Factors Associated With Nitrogen Fixation Prediction In Soybean, Andre Froes Borja Reis, Luiz Moror Rosso, Larry C. Purcell, Seth Naeve, Shaun N. Casteel, Peter Kovacs, Sotirios Archontoulis, Dan Davidson, Ignacio A. Ciampitti
Agronomy, Horticulture and Plant Science Faculty Publications
No abstract provided.
Near Term Challenges For Global Agriculture - Herbicide Resistant Weeds, Sharon Clay
Near Term Challenges For Global Agriculture - Herbicide Resistant Weeds, Sharon Clay
Agronomy, Horticulture and Plant Science Faculty Publications
Prior to the 1950s weeds were controlled by a wide variety of mechanical and cultural methods with limited use of inorganic chemicals at very high rates (100s kg ha–1). With the advent of selective carbon-based herbicides in the 1950s, herbicide weed management became the norm throughout much of the world using grams to a few kg of active ingredient per ha. However, with the benefits, there are problems. A few resistant weeds were recognized in the 1970s, but today, in 2021, 521 unique cases of resistance have been documented throughout the world. It is imperative for farmers to rethink the …
Responses Of Soil Surface Greenhouse Gas Emissions To Nitrogen And Sulfur Fertilizer Rates To Brassica Carinata Grown As A Bio-Jet Fuel, Dwarika Bhattarai, Gandura O. Abagandura, Thandiwe Nleya, Sandeep Kumar
Responses Of Soil Surface Greenhouse Gas Emissions To Nitrogen And Sulfur Fertilizer Rates To Brassica Carinata Grown As A Bio-Jet Fuel, Dwarika Bhattarai, Gandura O. Abagandura, Thandiwe Nleya, Sandeep Kumar
Agronomy, Horticulture and Plant Science Faculty Publications
Carinata (Brassica carinata A. Braun), a non-food oilseed crop and an alternative bio-jet fuel feedstock, has received attention for its potential as a low-input option for production in the semi-arid region of the Northern Great Plains of the United States. Research addressing the impacts of nitrogen (N) and sulfur (S) fertilizers on soils and greenhouse gas (GHG; CO2, N2O, and CH4) emissions from carinata production are limited. Thus, objective of this study was to evaluate the impact of different rates of N and S fertilizers applied to carinata on soil properties and GHG …
Moran Eigenvector Filtering Of Multi-Year Yield Data With Application To Zone Development, Dan S. Long, Daniel A. Griffith, Craig K. Kvien, David E. Clay
Moran Eigenvector Filtering Of Multi-Year Yield Data With Application To Zone Development, Dan S. Long, Daniel A. Griffith, Craig K. Kvien, David E. Clay
Agronomy, Horticulture and Plant Science Faculty Publications
A time‐series of yield monitor data may be used to identify field areas of consistently low or high yield to serve as productivity zones for site‐specific crop management. However, transient factors that affect yield in 1 yr, but not every year, detract from this approach. The objective of this study was to illustrate Moran eigenvector spatial filtering (MESF) with results from analysis of multi‐year crop yield data from two farm fields in the United States. The MESF method accounts for temporal autocorrelation within a common factor map representing the correlation across years and partitions stochastic geographic variation into spatially structured …
Nitrogen Fertilization And Glyphosate-Resistant Alfalfa Termination Method Effects On First-Year Silage Corn, Jason Clark, Matt A. Yost, Thomas C. Griggs, Grant E. Cardon, Corey V. Ransom, J. Earl Creech
Nitrogen Fertilization And Glyphosate-Resistant Alfalfa Termination Method Effects On First-Year Silage Corn, Jason Clark, Matt A. Yost, Thomas C. Griggs, Grant E. Cardon, Corey V. Ransom, J. Earl Creech
Agronomy, Horticulture and Plant Science Faculty Publications
Tillage type/timing and herbicide application date may change the amount and timing of N mineralization, altering fertilizer N needs for first-year corn (Zea mays L.) following glyphosate [N-(phosphonomethyl)glycine]-resistant (GR) alfalfa (Medicago sativa L.). Studies were conducted in 2012 and 2013 in Utah. Yield, quality, and economic return of silage corn as affected by five tillage type/timings (fall conventional till, spring conventional till, fall strip-till, spring strip-till, and no-till), three herbicide application dates for alfalfa termination (fall, spring, and in-crop), and four N rates (0, 56, 112, and 224 kg ha−1) were evaluated. Silage corn yield and quality following …
Nitrogen And Sulfur Fertilizers Effects On Growth And Yield Of Brassica Carinata In South Dakota, Dwarika Bhattarai, Sandeep Kumar, Thandiwe Nleya
Nitrogen And Sulfur Fertilizers Effects On Growth And Yield Of Brassica Carinata In South Dakota, Dwarika Bhattarai, Sandeep Kumar, Thandiwe Nleya
Agronomy, Horticulture and Plant Science Faculty Publications
Carinata (Brassica carinata A. Braun), a non-food oilseed and an alternative biofuel feedstock, has received attention for its potential as a low-input option for production in the semi-arid regions of the Northern Great Plains (NGP). This study was conducted to (a) determine the economic optimum N and S fertilization rates and (b) determine the interactive effects of N and S fertilization on seed yield and agronomic traits in carinata. The field experiment conducted in 2017 and 2018 at Brookings, SD, had four N rates (56, 84, 112, and 140 kg N ha−1) and three S rates (0, …
Abrasive Weeding As A Vehicle For Precision Fertilizer Management In Organic Vegetable Production, Tran Kim Ngan Luong, Frank Forcella, Sharon A. Clay, Michael S. Douglass, Sam E. Wortman
Abrasive Weeding As A Vehicle For Precision Fertilizer Management In Organic Vegetable Production, Tran Kim Ngan Luong, Frank Forcella, Sharon A. Clay, Michael S. Douglass, Sam E. Wortman
Agronomy, Horticulture and Plant Science Faculty Publications
Abrasive weeding is a nonchemical weed control tactic that uses small, gritty materials propelled with compressed air to destroy weed seedlings. Organic fertilizers have been used successfully as abrasive grits to control weeds, but the goal for this study was to explore the effects of fertilizer grit, application rates, and background soil fertility on weeds, plant available nitrogen (N) uptake, and crop yield. Field trials were conducted in organic ‘Carmen’ sweet red pepper (Capsicum annuum) and organic ‘Gypsy’ broccoli (Brassica oleracea var. italica) and treatments included organic fertilizer grit (8N–0.9P–3.3K vs. 3N–3.1P–3.3K), grit application rates (low …
Fungicide, Insecticide, And Foliar Fertilizer Effect On Soybean Yield, Seed Composition, And Canopy Retention, Kelsey Bergman, Ignacio Clampitti, Peter Sexton, Péter Kovács
Fungicide, Insecticide, And Foliar Fertilizer Effect On Soybean Yield, Seed Composition, And Canopy Retention, Kelsey Bergman, Ignacio Clampitti, Peter Sexton, Péter Kovács
Agronomy, Horticulture and Plant Science Faculty Publications
Soybean [Glycine max (L.) Merr.] yield has increased over time through the introduction of new varieties and improved agronomic practices. However, seed protein concentration has decreased. We conducted field studies in 2018 and 2019 to investigate the effects of fungicide, insecticide, and foliar fertilizer application on grain yield and seed quality in two soybean maturity groups (MG). In‐season treatments targeted nutrient availability and soybean canopy duration during the seed‐filling period by fungicide, insecticide, or foliar fertilizer application at the onset of this period. Biomass samples were collected at R5, R6, and R7 and partitioned into plant parts. Year, location, …
Spur And Short Cane Pruning Influence Bud Viability, Yield, And Fruit Quality, Turhan Yilmaz, Anne Fennell
Spur And Short Cane Pruning Influence Bud Viability, Yield, And Fruit Quality, Turhan Yilmaz, Anne Fennell
Agronomy, Horticulture and Plant Science Faculty Publications
Balanced pruning is used to manage vegetative vigor and fruit load to optimize yield and fruit quality in most of fruit species. The objective of this study was to determine the bud viability, yield, and fruit quality potential of four grapevine cultivars using three pruning strategies. Four cold climate grapevine cultivars- -Brianna, Frontenac, La Crescent, and Marquette--were tested with spur (SP), short cane (SC), and spur plus short cane (SPSC) pruning treatments in 2018, 2019, and 2020. The SP treatment was 10 two-bud spurs per vine, SC was five four-bud short canes, and SPSC vines had four SP and three …
Agronomic Response Of Camelina To Nitrogen And Seeding Rate On The Northern Great Plains, Thandiwe Nleya, Dwarika Bhattarai, Phillip Alberti
Agronomic Response Of Camelina To Nitrogen And Seeding Rate On The Northern Great Plains, Thandiwe Nleya, Dwarika Bhattarai, Phillip Alberti
Agronomy, Horticulture and Plant Science Faculty Publications
Camelina (Camelina sativa L. Crantz,) a new oilseed crop in the Brassicaceae family has favorable agronomic traits and multiple food and industrial uses. Appropriate production practices for optimal camelina yield in temperate climates of North America are lacking. This study investigated the response of camelina seed yield and quality, and agronomic traits to applied N (5 levels, 0, 28, 56, 84, 140 kg ha−1) and four seeding rates (4.5, 9, 13, 17.5 kg ha−1). Separate experiments were conducted at four environments (site-years) for N and three environments for seeding rate in South Dakota. In three of the four environments, the …