Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Kentucky (4548)
- University of Nebraska - Lincoln (988)
- University of South Florida (372)
- Department of Primary Industries and Regional Development, Western Australia (345)
- Utah State University (261)
-
- Western Kentucky University (241)
- University of Arkansas, Fayetteville (188)
- University of Texas Rio Grande Valley (180)
- University of Colorado Law School (164)
- Old Dominion University (76)
- East Tennessee State University (66)
- University of Nevada, Las Vegas (57)
- Missouri University of Science and Technology (56)
- Montclair State University (56)
- Portland State University (53)
- Boise State University (52)
- TÜBİTAK (49)
- California Polytechnic State University, San Luis Obispo (48)
- South Dakota State University (48)
- University of North Dakota (47)
- Central Washington University (46)
- City University of New York (CUNY) (44)
- Western Michigan University (44)
- University of Northern Iowa (40)
- Louisiana State University (39)
- Wright State University (37)
- Fort Hays State University (36)
- Smith College (36)
- University of Minnesota Morris Digital Well (36)
- University of New Hampshire (36)
- Keyword
-
- Grazing (280)
- Western Australia (245)
- Climate change (151)
- Sheep (131)
- Soil (130)
-
- Cattle (117)
- Nitrogen (110)
- Pasture (103)
- Water quality (102)
- Forage (99)
- Drought (97)
- Geology (96)
- Groundwater (93)
- Intake (92)
- Grassland (91)
- Biodiversity (87)
- Livestock (87)
- Digestibility (85)
- Silage (83)
- Sustainability (83)
- Natural resources (82)
- Stocking rate (82)
- Phosphorus (78)
- Conservation (77)
- Forage quality (77)
- Grains and field crops (77)
- United States (77)
- Agriculture (74)
- Alfalfa (73)
- Grazing management (67)
- Publication Year
- Publication
-
- IGC Proceedings (1977-2023) (4103)
- United States Geological Survey: Staff Publications (354)
- International Journal of Speleology (229)
- Kentucky Alfalfa and Stored Forage Conference (147)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (142)
-
- Theses and Dissertations (139)
- Mammoth Cave Research Symposia (133)
- Kentucky Grazing Conference (129)
- Electronic Theses and Dissertations (112)
- Graduate Theses and Dissertations (89)
- Department of Earth and Atmospheric Sciences: Faculty Publications (82)
- Memorandum (82)
- School of Natural Resources: Dissertations, Theses, and Student Research (81)
- Masters Theses (74)
- Resource management technical reports (68)
- Faculty Publications (67)
- Experimental Summaries - Plant Research (63)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (62)
- School of Geosciences Faculty and Staff Publications (60)
- Journal of the Department of Agriculture, Western Australia, Series 4 (54)
- Masters Theses & Specialist Projects (52)
- United States Environmental Protection Agency: Publications (51)
- Turkish Journal of Earth Sciences (49)
- USF Tampa Graduate Theses and Dissertations (48)
- Bulletin of the University of Nebraska State Museum (1924–2023) (45)
- Bulletins 4000 - (43)
- Daugherty Water for Food Global Institute: Faculty Publications (43)
- United States Geological Survey: Publications (43)
- Journal of the Arkansas Academy of Science (40)
- National Drought Mitigation Center: Faculty Publications (39)
- Publication Type
- File Type
Articles 4471 - 4500 of 9411
Full-Text Articles in Entire DC Network
Prescribed Burning Based On Range Condition In The Okavango Delta Ramsar Site In Botswana, Africa, W. S. W. Trollope, L. A. Trollope, C. De B. Austin, A. C. Held
Prescribed Burning Based On Range Condition In The Okavango Delta Ramsar Site In Botswana, Africa, W. S. W. Trollope, L. A. Trollope, C. De B. Austin, A. C. Held
IGC Proceedings (1977-2023)
No abstract provided.
Preliminary Investigations On Columbus Grass (Sorghum Almum Parodi) For Fodder In Semi‐Arid Nigeria: Effects Of Sowing Methods On Growth Components And Herbage Yield, B. S. Malami, H. M. Tukur, H. Dahiru
Preliminary Investigations On Columbus Grass (Sorghum Almum Parodi) For Fodder In Semi‐Arid Nigeria: Effects Of Sowing Methods On Growth Components And Herbage Yield, B. S. Malami, H. M. Tukur, H. Dahiru
IGC Proceedings (1977-2023)
No abstract provided.
Recent Shrinkage And Fragmentation Of Bluegrass Landscape In Kentucky, Bo Tao, Yanjun Yang, Jia Yang, S. Ray Smith, James F. Fox, Alex C. Ruane, Jinze Liu, Wei Ren
Recent Shrinkage And Fragmentation Of Bluegrass Landscape In Kentucky, Bo Tao, Yanjun Yang, Jia Yang, S. Ray Smith, James F. Fox, Alex C. Ruane, Jinze Liu, Wei Ren
Plant and Soil Sciences Faculty Publications
The Bluegrass Region is an area in north-central Kentucky with unique natural and cultural significance, which possesses some of the most fertile soils in the world. Over recent decades, land use and land cover changes have threatened the protection of the unique natural, scenic, and historic resources in this region. In this study, we applied a fragmentation model and a set of landscape metrics together with the satellite-derived USDA Cropland Data Layer to examine the shrinkage and fragmentation of grassland in the Bluegrass Region, Kentucky during 2008–2018. Our results showed that recent land use change across the Bluegrass Region is …
The Strawberry Rhizosphere Microbiome: Role On Plant Health And Nutrition, Eric Michael Boyd
The Strawberry Rhizosphere Microbiome: Role On Plant Health And Nutrition, Eric Michael Boyd
Master's Theses
Microbial-root associations are important to help plants cope with abiotic and biotic stressors. Managing these interactions offers an opportunity for improving the efficiency and sustainability of agricultural production. By characterizing the bacterial and archaeal community (via 16S rRNA sequencing) associated with the bulk and rhizosphere soil of sixteen strawberry cultivars in two controlled field studies, we explored the relationships between the soil microbiome and plant resistance to two soilborne fungal pathogens of strawberry (Verticillium dahliae and Macrophomina phaseolina). Overall, the plants had a distinctive rhizosphere microbiome relative to the bulk soil, with higher abundances of known beneficial bacteria …
Non-Toxic Soil Thickeners For Reducing Mudslide Intensity, Mitchell William Jensen
Non-Toxic Soil Thickeners For Reducing Mudslide Intensity, Mitchell William Jensen
Materials Engineering
This project was intended to be a continuation of senior project work done last year by a group consisting of two Materials Engineering students and a Soil Science student. Their report was crucial in identifying a range of food thickeners that could be capable of performing in the mud thickening application. All thickeners that were chosen both this year and last year are biocompatible, to alleviate some toxicity concerns. The food thickeners all belong to a class of compounds known as colloids. Since water is the fluid being thickened, these compounds are more accurately referred to as hydrocolloids. Hydrocolloids are …
Physical And Chemical Properties Of Soils In Gambari Forest Reserve Near Ibadan, South Western Nigeria., Akintola O. Opeyemi Dr, Bodede Idayat Adewunmi Dr, Abiola Isaac Oluwaseyi Dr
Physical And Chemical Properties Of Soils In Gambari Forest Reserve Near Ibadan, South Western Nigeria., Akintola O. Opeyemi Dr, Bodede Idayat Adewunmi Dr, Abiola Isaac Oluwaseyi Dr
Journal of Bioresource Management
The different features of soil greatly affect the flora and vegetative diversity of a forest. The physical and chemical characteristics of soils in Onigambari Forest Reserve were evaluated to assess the fertility and productivity status of the soils. Fifteen soil samples collected from different sample locations were analyzed for soil texture (sand, silt and clay), bulk density, porosity, pH, organic matter, total nitrogen, available phosphorus, exchangeable bases (Na, K, Ca and Mg) and available micronutrients (Zn, Cu, Fe and Mn). Texturally, the studied soils were loamy sand and sandy loam with percentage of sands (71.2-84.2 %), silts (7.4-10.4 %) and …
Estimating Evapotranspiration Of A Riparian Forest Using Sap Flow Measurements, James R. Solum
Estimating Evapotranspiration Of A Riparian Forest Using Sap Flow Measurements, James R. Solum
Master's Theses
To close the water use budget of irrigated agricultural fields in floodplains with substantial riparian corridors, it is necessary to understand groundwater usage by dominant phreatophytic vegetation, particularly when the primary source of water for irrigation comes from groundwater abstraction. We report here results of estimated evapotranspiration (ET) of a riparian forest, which were based on measurements of sap flow in phreatophytic vegetation within a riparian corridor. The riparian corridor was within a study area 75 to 140 meters wide in the lower portion of the Scotts Creek watershed, which is bounded to the west by the Pacific Ocean in …
Geospatial Applications To Mitigate Concentrated Animal Feeding Operations From Impacting Surface Water Resources, Elias Rex
Electronic Theses, Projects, and Dissertations
Concentrated Animal Feeding Operations (CAFOs) offer the ability to meet the rising demands of population growth by housing large amounts of livestock on relatively small areas of land, using medication to accelerate their maturation, and reusing waste products as fertilizers. However, there is a growing abundance of literature related to land use configurations and their effects on water resources, many of which highlight agriculture as a primary contributor of nutrients and fecal bacteria found in surrounding water resources. The purpose of this study is to advance the current knowledge surrounding CAFO land-use and its effect on tributaries within the Cape …
Effects Of Endophyte Infection On The Response Of Achnatherum Inebrians To Water Stress And Nitrogen Fertilizer Under Controlled Growth Conditions, X. S. Li, X. Z. Zhang, X. Gu
Effects Of Endophyte Infection On The Response Of Achnatherum Inebrians To Water Stress And Nitrogen Fertilizer Under Controlled Growth Conditions, X. S. Li, X. Z. Zhang, X. Gu
IGC Proceedings (1977-2023)
No abstract provided.
Sustainable Recultivation And Land Use On Karst Regions--Shrub System, Z. Q. Lai, S, M. Qin, Y. R. Chen, S. Z. Qin, M. Pogacnik, X. F. Yi, N. Yao, Y. L. Liang, D. Kompan, X. Su
Sustainable Recultivation And Land Use On Karst Regions--Shrub System, Z. Q. Lai, S, M. Qin, Y. R. Chen, S. Z. Qin, M. Pogacnik, X. F. Yi, N. Yao, Y. L. Liang, D. Kompan, X. Su
IGC Proceedings (1977-2023)
No abstract provided.
Sustainable Recultivation And Land Use On Karst Regions--Pasture System, Z. Q. Lai, Y. R. Chen, M. Pogacnik, S. Z. Qin, X. F. Yi, N. Yao, Y. L. Liang, J. H. Deng, X. F. Zhang, B. Zhang, H. J. Zhong, D. Kompan, X. J. Lu, X. Su, D. Y. Shen
Sustainable Recultivation And Land Use On Karst Regions--Pasture System, Z. Q. Lai, Y. R. Chen, M. Pogacnik, S. Z. Qin, X. F. Yi, N. Yao, Y. L. Liang, J. H. Deng, X. F. Zhang, B. Zhang, H. J. Zhong, D. Kompan, X. J. Lu, X. Su, D. Y. Shen
IGC Proceedings (1977-2023)
No abstract provided.
A Model For Managing An Endangered Species In Sandhills Rangeland, Kay L. Kottas, James Stubbendieck
A Model For Managing An Endangered Species In Sandhills Rangeland, Kay L. Kottas, James Stubbendieck
IGC Proceedings (1977-2023)
No abstract provided.
Effect Of Long‐Term Salt Stress On Antioxidative Enzyme Activities Of Nypa Forage (Distichlis Spicata Var. Yensen‐4a) And Tall Fescue (Festuca Arundinacea Schreb), Yaxiong Jia, Xianglin Li, Liqiang Wan, Feng He
Effect Of Long‐Term Salt Stress On Antioxidative Enzyme Activities Of Nypa Forage (Distichlis Spicata Var. Yensen‐4a) And Tall Fescue (Festuca Arundinacea Schreb), Yaxiong Jia, Xianglin Li, Liqiang Wan, Feng He
IGC Proceedings (1977-2023)
No abstract provided.
Influence Of Growing Season Rainfall Amount And Clipping Intensity On Aboveground Net Primary Productivity In Leyums Chinensis Steppe, Feng He, Xianglin Li, Liqiang Wan, Yaxiong Jia, Dan He
Influence Of Growing Season Rainfall Amount And Clipping Intensity On Aboveground Net Primary Productivity In Leyums Chinensis Steppe, Feng He, Xianglin Li, Liqiang Wan, Yaxiong Jia, Dan He
IGC Proceedings (1977-2023)
No abstract provided.
Botanical Composition: A Tool To Evaluate Rangeland Condition Trends Under Different Management Conditions, María Cristina Goldfarb, José Francisco Casco, Laura Itatí Giménez, Francisco Nuñez
Botanical Composition: A Tool To Evaluate Rangeland Condition Trends Under Different Management Conditions, María Cristina Goldfarb, José Francisco Casco, Laura Itatí Giménez, Francisco Nuñez
IGC Proceedings (1977-2023)
No abstract provided.
Large‐Scale Changes In Ratio Of C3 And C4 Plants In Central Asian Grassland During The Last Century As Recovered From Wool Archives, Karl Auerswald, T. Maennel, Y. F. Bai, M. Wittmer, Hans Schnyder
Large‐Scale Changes In Ratio Of C3 And C4 Plants In Central Asian Grassland During The Last Century As Recovered From Wool Archives, Karl Auerswald, T. Maennel, Y. F. Bai, M. Wittmer, Hans Schnyder
IGC Proceedings (1977-2023)
No abstract provided.
Oat And Wheat Added To Annual Ryegrass Pasture To Improve The Seasonal Forage Offer, M. Arzadun, H. Laborde, D. Morris, L. Fernandez
Oat And Wheat Added To Annual Ryegrass Pasture To Improve The Seasonal Forage Offer, M. Arzadun, H. Laborde, D. Morris, L. Fernandez
IGC Proceedings (1977-2023)
No abstract provided.
Breeding Apomictic Bahiagrass (Paspalum Notatum Flügge) In Southeastern Usa, C. A. Acuña, A. R. Blount, C. L. Mackowiak, K. H. Quesenberry
Breeding Apomictic Bahiagrass (Paspalum Notatum Flügge) In Southeastern Usa, C. A. Acuña, A. R. Blount, C. L. Mackowiak, K. H. Quesenberry
IGC Proceedings (1977-2023)
No abstract provided.
Spatial Heterogeneity Of Soil Fertility, Plant Biomass, And Producitivty In Grasslands, Masae Shiyomi, Jun Chen
Spatial Heterogeneity Of Soil Fertility, Plant Biomass, And Producitivty In Grasslands, Masae Shiyomi, Jun Chen
IGC Proceedings (1977-2023)
No abstract provided.
Isotopes As Natural Recorders Of Grassland Ecosystem Functioning And Change, Hans Schnyder, Karl Auerswald
Isotopes As Natural Recorders Of Grassland Ecosystem Functioning And Change, Hans Schnyder, Karl Auerswald
IGC Proceedings (1977-2023)
No abstract provided.
Rangeland Ecology And Management In A Changing World, Joel R. Brown, Brandon T. Bestelmeyer, Kris M. Havstad
Rangeland Ecology And Management In A Changing World, Joel R. Brown, Brandon T. Bestelmeyer, Kris M. Havstad
IGC Proceedings (1977-2023)
No abstract provided.
Public Demands On Intensive Grassland Systems And Agri-Environmental Policies Of Oecd Members, Alain Peeters
Public Demands On Intensive Grassland Systems And Agri-Environmental Policies Of Oecd Members, Alain Peeters
IGC Proceedings (1977-2023)
No abstract provided.
Livestock Production And Poverty Alleviation--Challenges And Opportunities In Arid And Semi‐Arid Tropical Rangeland Based Systems, C. Seré, A. Ayantunde, A. Duncan, A. Freeman, M. Herrero, Shirley A. Tarawali, I. Wright
Livestock Production And Poverty Alleviation--Challenges And Opportunities In Arid And Semi‐Arid Tropical Rangeland Based Systems, C. Seré, A. Ayantunde, A. Duncan, A. Freeman, M. Herrero, Shirley A. Tarawali, I. Wright
IGC Proceedings (1977-2023)
No abstract provided.
Sustainability And Optimization Of Rangeland Uses: Issues Of Perspective And Scale, T. L. Thurow
Sustainability And Optimization Of Rangeland Uses: Issues Of Perspective And Scale, T. L. Thurow
IGC Proceedings (1977-2023)
No abstract provided.
Overview Of Grassland And Its Development In China, Jiawen Liu, Yingjun Zhang, Yongjun Li, Deli Wang, Guodong Han, Fujiang Hou
Overview Of Grassland And Its Development In China, Jiawen Liu, Yingjun Zhang, Yongjun Li, Deli Wang, Guodong Han, Fujiang Hou
IGC Proceedings (1977-2023)
No abstract provided.
21st International Grassland Congress / 8th International Rangeland Congress: Foreward And Acknowledgement, Organizing Committee Of 2008 Igc/Irc Conference
21st International Grassland Congress / 8th International Rangeland Congress: Foreward And Acknowledgement, Organizing Committee Of 2008 Igc/Irc Conference
IGC Proceedings (1977-2023)
No abstract provided.
Effect Of Including Arachis Pintoi In Tropical Forages Diets Megathyrsus Maximus And Brachiaria Humidicola On In Vitro Methane Production, Diana Marcela Valencia Echavarría, Luis Alfonso Giraldo Valderrama, Alexandra Torres, Alejandra Marín Gomez
Effect Of Including Arachis Pintoi In Tropical Forages Diets Megathyrsus Maximus And Brachiaria Humidicola On In Vitro Methane Production, Diana Marcela Valencia Echavarría, Luis Alfonso Giraldo Valderrama, Alexandra Torres, Alejandra Marín Gomez
IGC Proceedings (1977-2023)
Ruminants have the capability to ferment structural carbohydrates found in forages and obtain from them a usable form of energy to produce high quality food, i.e milk and meat (Kamra et al., 2012). However, as a gaseous by-product from the enteric fermentation of those carbohydrates, methane is produced in a significant proportion, being considered as one of the most important greenhouse gases (GHG). In Colombian tropical livestock, inclusion of legumes in on poor quality grasses diets based have allowed an improvement of their nutritive quality, besides enteric methanogenesis reduction because their content of condensed tannins (CT); however, this is not …
Phyto-Ruminal-Bioremediation: Grasses To The Rescue, Morrie Craig, Jennifer Duringer, Linda Blythe
Phyto-Ruminal-Bioremediation: Grasses To The Rescue, Morrie Craig, Jennifer Duringer, Linda Blythe
IGC Proceedings (1977-2023)
The US EPA has defined Super Fund sites for 594 toxins in the United States. The EPA definition of toxins is one that causes acute or chronic human health effects, or causing significant environmental harm. One of the categories of toxins is nitroaromatic molecules, which are used primarily as munitions. In the United States alone there are 16,000 Department of Defense (DoD) sites. The most common munitions there are TNT, RDX, HMX, and 2,4 DNT. In the world, these sites range historically from World War II residues to those from recent Middle East conflicts. Human health effects from these toxins …
Comparison Of Two Different Pasture Species Compositions For Recovery Of Deep Soil Nitrogen During Winter, Brendon Malclom, Keith Cameron, Grant Edwards, Jim Moir, Hong Di
Comparison Of Two Different Pasture Species Compositions For Recovery Of Deep Soil Nitrogen During Winter, Brendon Malclom, Keith Cameron, Grant Edwards, Jim Moir, Hong Di
IGC Proceedings (1977-2023)
Surplus nitrate (NO3-) beneath animal urine patches is highly vulnerable to leaching, particularly during winter when soil drainage is often highest. Most common pastures in New Zealand (i.e. Lolium perenne) have relatively shallow root systems and produce low dry matter (DM) yields during winter months. Recent investigations suggest that alternative pasture species may be able to recover more soil nitrogen (N) during winter and consequently reduce NO3- leaching losses (Moir et al., 2013; Malcolm et al., 2014; 2015). However, further work is required to better understand the importance of root system architecture and plant …
Effect Of Selected Tanniniferous Leaves On In Vivo Enteric Methane Emission In Sheep, M. Saravanan, R. Bhatta, L. Baruah, P. K. Malik, N. Ravi
Effect Of Selected Tanniniferous Leaves On In Vivo Enteric Methane Emission In Sheep, M. Saravanan, R. Bhatta, L. Baruah, P. K. Malik, N. Ravi
IGC Proceedings (1977-2023)
Concentration of methane is continuously increasing in atmosphere and now almost 155% (IPCC, 2007) more than that recorded during pre-industrial era. Livestock production is a major sector accountable for high methane emission into atmospheric pool. World’s livestock is contributing around 15% of total atmospheric methane on annual basis feeds (Moss et al., 2000). Additionally, methane emission from ruminants leads to a loss of 2 to 15% of the dietary energy (Holter and Young, 1992). Due to these two crucial issues, researchers are working tirelessly to find a suitable and effective way for enteric methane amelioration accompanied with minimal inputs. …