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Articles 1 - 11 of 11
Full-Text Articles in Agriculture
Benchmarking On-Farm Maize Nitrogen Balance In The Western U.S. Corn Belt, Fatima Amor Tenorio
Benchmarking On-Farm Maize Nitrogen Balance In The Western U.S. Corn Belt, Fatima Amor Tenorio
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
A nitrogen (N) balance, calculated as the difference between N inputs and grain-N removal, provides an estimate of the potential N losses. We used N balance with other N-related metrics (partial factor productivity for N inputs, and yield-scaled N balance), to benchmark maize yields in relation with N input use in the US Corn Belt. We first used experimental data on grain-N concentration (GNC) to assess variation in this parameter due to biophysical and management factors. Subsequently, we used N balance and N-related metrics to benchmark yields in relation with N inputs in irrigated and rainfed fields in Nebraska using …
Precision Agriculture Gis Technologies For Mississippi, 1st. Edition, Amelia A.A. Fox
Precision Agriculture Gis Technologies For Mississippi, 1st. Edition, Amelia A.A. Fox
College of Agriculture & Life Sciences Publications and Scholarship
Precision agriculture is meant to improve on-farm efficiency in hopes of ultimately increasing profitability while also protecting the environment. However, this difficult process almost always includes the proper management and interpretation of data. Therefore, it is imperative that those individuals involved in making such decisions are educated on these processes. In a data-driven world, this textbook is a great resource for those wanting to learn how to utilize their data in hopes of making better informed on-farm decisions.
Symptoms, Distribution And Abundance Of The Stem-Boring Caterpillar, Blastobasis Repartella (Dietz), In Switchgrass, Jarrad R. Prasifka, Jeffrey Bradshaw, Arvid A. Boe, Dokyoung Lee, David Adamski, Michael E. Gray
Symptoms, Distribution And Abundance Of The Stem-Boring Caterpillar, Blastobasis Repartella (Dietz), In Switchgrass, Jarrad R. Prasifka, Jeffrey Bradshaw, Arvid A. Boe, Dokyoung Lee, David Adamski, Michael E. Gray
Arvid Boe
A potential pest of switchgrass, Panicum virgatum L., was first detected in South Dakota in 2004, where death of partially emerged leaves was noted in a small proportion of tillers. Similar “dead heart” symptoms were observed in switchgrass in Illinois during 2008 and adults of a stem-boring caterpillar were collected and identified as Blastobasis repartella (Dietz). In 2009, a survey of the central United States was used to estimate the distribution and abundance of this insect. In eight northern states, B. repartella was consistently found in both cultivated plots and natural stands of switchgrass. In four southern states, B. repartella …
Biology And Management Of The Soybean Stem Borer, Dectes Texanus Leconte, In Kentucky, Izabela Gomes
Biology And Management Of The Soybean Stem Borer, Dectes Texanus Leconte, In Kentucky, Izabela Gomes
Theses and Dissertations--Entomology
Dectes texanus LeConte (Coleoptera: Cerambycidae) is a longhorn beetle species endemic to eastern United States. Originally described as a pest of weeds from the family Asteraceae, D. texanus has expanded its host range and is found infesting the stems of soybeans, Glycine max (L.) through the southwestern and middle United States. Female D. texanus chews a hole in the epidermis of a petiole and oviposits on it. Then, the D. texanus larva depletes all the pith of the stem making a tunnel down to the base of the plant and girdle the stem about 5 cm above the …
Establecimiento De Un Sistema De Producción De 1 Hectárea De Maíz Amarillo (Zea Mays L.) Con Fines Comerciales En Popayán – Cauca, Liceth Viviana Tosne Chacón
Establecimiento De Un Sistema De Producción De 1 Hectárea De Maíz Amarillo (Zea Mays L.) Con Fines Comerciales En Popayán – Cauca, Liceth Viviana Tosne Chacón
Ingeniería Agronómica
Actualmente el maíz se ha convertido en uno de los cereales más utilizados para la alimentación animal y en una menor cantidad para el consumo humano (Zua Quetzal, 2014), encontrándose a nivel mundial según la Federación Nacional de Cultivadores de Cereales y Leguminosas (2018) como el primer cereal con mayor área cultivada. En Colombia, según datos de FENALCE (2018), el cultivo de maíz abarca un área de 210.241 hectáreas nacionales, postulándose como uno de los países con potencial para la producción, incentivando a los productores de diferentes regiones a instaurar la plantación con el fin de obtener ingresos económicos estables …
The Applicability Of New Training Systems For Sweet Cherry In Turkey, Di̇lek Soysal, Leyla Demi̇rsoy, İdri̇s Maci̇t, Gregory Lang, Hüsnü Demi̇rsoy
The Applicability Of New Training Systems For Sweet Cherry In Turkey, Di̇lek Soysal, Leyla Demi̇rsoy, İdri̇s Maci̇t, Gregory Lang, Hüsnü Demi̇rsoy
Turkish Journal of Agriculture and Forestry
The use of training systems for cherry trees is significantly important, as they form the basis of future shoots, which are potential producers of fruits. Numerous studies have been carried out on training systems for cherries around the world. It is well known that new training systems result in a shorter fruiting time and ease mechanical operations, such as harvesting and pruning. Unfortunately, new systems have never been tried for sweet cherry in Turkey. This study was aimed at determining the effect of different training systems, such as tall spindle axe (TSA), super spindle axe (SSA), upright fruiting offshoots (UFO), …
Precision Cane Meristem Management Can Influence Productivity And Fruit Quality Offloricane Red Raspberry Cultivars, Aleksandar Zivotic, Nikola Micic, Mirjana Zabic, Borut Bosancic, Miljan Cvetkovic
Precision Cane Meristem Management Can Influence Productivity And Fruit Quality Offloricane Red Raspberry Cultivars, Aleksandar Zivotic, Nikola Micic, Mirjana Zabic, Borut Bosancic, Miljan Cvetkovic
Turkish Journal of Agriculture and Forestry
In Bosnia and Herzegovina, the hedgerow system is the main raspberry growing system, which has no clearly-defined standards regarding plant density and fruit-bearing potential per meter of hedgerow. This study evaluates the effect of precision cane meristem management in growing major floricane red raspberry cultivars in Bosnia and Herzegovina. During 2015 and 2016, in Willamette, Meeker, and Tulameen, grown under the hedgerow system, mixed buds were selected on fruiting laterals with the fruitbearing potential of 80, 100, and 120 well-developed and well-positioned mixed buds per meter of hedgerow. High stable yields were recorded under the medium load of 100 buds …
Can Ratoon Cropping Improve Resource Use Efficiencies And Profitability Of Rice In Central China?, Shen Yuan, Kenneth G. Cassman, Jianliang Huang, Shaobing Peng, Patricio Grassini
Can Ratoon Cropping Improve Resource Use Efficiencies And Profitability Of Rice In Central China?, Shen Yuan, Kenneth G. Cassman, Jianliang Huang, Shaobing Peng, Patricio Grassini
Department of Agronomy and Horticulture: Faculty Publications
Identifying cropping systems with small global warming potential (GWP) per unit of productivity is important to ensure food security while minimizing environmental footprint. During recent decades, double-season rice (DR) systems in central China have progressively shifted into single-crop, middle-season rice (MR) due to high costs and labor requirements of double-season rice. Ratoon rice (RR) has been proposed as an alternative system that reconciliates both high annual productivity and relatively low costs and labor requirements. Here we used onfarm data collected from 240 farmer fields planted with rice in 2016 to evaluate annual energy balance, environmental impact, and net profit of …
Effects Of Potassium Source And Rate On Yield, Quality, And Leaf Chemistry Of Dark And Burley Tobacco, And Residual Effects Of Soil K Levels, Andrea Brooke Keeney
Effects Of Potassium Source And Rate On Yield, Quality, And Leaf Chemistry Of Dark And Burley Tobacco, And Residual Effects Of Soil K Levels, Andrea Brooke Keeney
Theses and Dissertations--Plant and Soil Sciences
Field trials were conducted in 2016, 2017 and 2018 with dark fire-cured, dark air-cured, and burley tobacco at Princeton, Murray and Lexington Kentucky. Tobacco variety used in 2016 was a low converter (LC) variety, varieties used in 2017 and 2018 were LC and higher converter (HC) varieties. Potassium sources used at all locations and in all years were potassium sulfate (K2SO4) and potassium chloride (KCl). Application rates used at all locations and in all years were 93, 186, 279 kg K ha-1along with an untreated control that received no potassium. In all trials, tobacco …
Sunflower Pollinators In South Dakota: An Evaluation Of Species Composition, Abundance And Influence On Yield, Mackenzie Mattern
Sunflower Pollinators In South Dakota: An Evaluation Of Species Composition, Abundance And Influence On Yield, Mackenzie Mattern
Electronic Theses and Dissertations
In 2017 and 2018, South Dakota was the largest producer of sunflowers, Helianthus annuus L. (Asterales: Asteraceae) in the US, grossing approximately $178 million per year. In South Dakota, both confection and oilseed sunflower cultivars are grown. Despite breeding efforts to increase sunflower's ability to self-pollinate there is evidence that pollinator visitation results in increased sunflower yields. In addition, there is evidence that sunflower pollen is beneficial for pathogen resistance in various bee species, suggesting the importance of a mutualistic relationship between pollinators and sunflowers. In some areas, observed increases in sunflower yield is attributed to the presence of Apis …
Maximizing Ecosystem Services Provided To The New Oil Crop Brassica Carinata Through Landscape And Arthropod Diversity, Shane Stiles
Maximizing Ecosystem Services Provided To The New Oil Crop Brassica Carinata Through Landscape And Arthropod Diversity, Shane Stiles
Electronic Theses and Dissertations
Prairies, once spanning the Upper Midwest, have now largely been replaced by agriculture. The lack of resources available to pollinators in agricultural fields and the practices employed by farmers to maximize yield has led to a decline in insect and pollinator diversity. There is a need to better understand how ecosystem services provided by a diverse insect community scale to current farming practices as they relate to crop yield. We sought to explain how landscape heterogeneity relates to insect and pollinator diversity, as well as how insect diversity relates to crop yield across common farming practices. To evaluate how farming …