Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Kentucky (2766)
- University of Nebraska - Lincoln (1590)
- Department of Primary Industries and Regional Development, Western Australia (603)
- University of Arkansas, Fayetteville (549)
- Utah State University (500)
-
- TÜBİTAK (240)
- South Dakota State University (232)
- Universitas Padjadjaran (139)
- Louisiana State University (106)
- International Centre of Insect Physiology and Ecology (102)
- Brigham Young University (96)
- Tennessee State University (88)
- Clemson University (84)
- Michigan Technological University (82)
- California Polytechnic State University, San Luis Obispo (69)
- University of Dar es Salaam (62)
- Purdue University (57)
- University of the Philippines Los Baños (51)
- Technological University Dublin (40)
- University of Texas Rio Grande Valley (39)
- Eastern Illinois University (38)
- Western Kentucky University (35)
- Wright State University (35)
- Missouri State University (34)
- Claremont Colleges (32)
- Mississippi State University (32)
- West Virginia University (31)
- Old Dominion University (28)
- John Carroll University (25)
- Chapman University (24)
- Keyword
-
- Western Australia (324)
- Nitrogen (176)
- Nutritive value (142)
- Grazing (140)
- Forage (129)
-
- Grains and field crops (129)
- Yield (126)
- Alfalfa (117)
- Wheat (113)
- Sheep (101)
- Soybean (97)
- Rice (93)
- Phosphorus (91)
- Pasture (85)
- Digestibility (84)
- Maize (81)
- Horticulture (78)
- Biological sciences (77)
- Nutrition (71)
- Silage (69)
- Forage quality (68)
- Climate change (67)
- Sorghum (67)
- Cattle (66)
- Corn (65)
- Crude protein (60)
- Soil (60)
- Tall fescue (59)
- Quality (58)
- Sustainability (57)
- Publication Year
- Publication
-
- IGC Proceedings (1977-2023) (2270)
- Department of Agronomy and Horticulture: Faculty Publications (391)
- NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County (363)
- Turkish Journal of Botany (240)
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (233)
-
- Graduate Theses and Dissertations (202)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (185)
- Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences (168)
- Journal of the Department of Agriculture, Western Australia, Series 4 (168)
- Electronic Theses and Dissertations (142)
- Forage News (142)
- Jurnal Kultivasi (139)
- Theses and Dissertations (119)
- All Peer-Reviewed Publications (102)
- Experimental Summaries - Plant Research (101)
- Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research (100)
- UAES Bulletins (96)
- Bulletins 4000 - (80)
- Kentucky Alfalfa and Stored Forage Conference (79)
- Department of Plant Pathology: Faculty Publications (74)
- Agricultural and Environmental Sciences Faculty Research (73)
- Tanzania Journal of Science (62)
- Bryophyte Ecology Subchapters (61)
- LSU Master's Theses (60)
- All Theses (53)
- Arkansas Agricultural Experiment Station Research Series (53)
- Kentucky Grazing Conference (52)
- The Philippine Agricultural Scientist (51)
- Theses and Dissertations--Plant and Soil Sciences (51)
- Crop Updates (48)
- Publication Type
- File Type
Articles 1111 - 1140 of 8435
Full-Text Articles in Entire DC Network
Impacts Of Altitude On Plant Green Leaf, Fresh Litter, And Soil Stoichiometry In Subtropical Forests, Dehuang Zhu, Yan Zhou, Suhong Peng, Weiping Hua, Bin Luo, Dafeng Hui
Impacts Of Altitude On Plant Green Leaf, Fresh Litter, And Soil Stoichiometry In Subtropical Forests, Dehuang Zhu, Yan Zhou, Suhong Peng, Weiping Hua, Bin Luo, Dafeng Hui
Biology Faculty Research
BackgroundEcological stoichiometric characteristics of carbon (C), nitrogen (N), phosphorus (P), and potassium (K) serve as crucial indicators of nutrient cycling and limitation in terrestrial ecosystems. However, our current understanding of stoichiometric characteristics in subtropical forests and their response to different climate conditions is still limited.MethodsWe selected six altitudes ranging from 700 m to 1,200 m to simulate different climate conditions of an evergreen broadleaf forest in Wuyi Mountain, Fujian Province, China. We investigated C, N, P, and K stoichiometry and homeostasis in the green leaves, newly senesced leaf litter (fresh litter), and soil of this forest.ResultsLeaf P and K levels …
Forage News [2024-04], University Of Kentucky
Joint Environmental And Social Benefits From Diversified Agriculture, Laura Vang Rasmussen, Ingo Grass
Joint Environmental And Social Benefits From Diversified Agriculture, Laura Vang Rasmussen, Ingo Grass
Earth and Environmental Sciences Faculty Publications
Agricultural simplification continues to expand at the expense of more diverse forms of agriculture. This simplification, for example, in the form of intensively managed monocultures, poses a risk to keeping the world within safe and just Earth system boundaries. Here, we estimated how agricultural diversification simultaneously affects social and environmental outcomes. Drawing from 24 studies in 11 countries across 2655 farms, we show how five diversification strategies focusing on livestock, crops, soils, noncrop plantings, and water conservation benefit social (e.g., human well-being, yields, and food security) and environmental (e.g., biodiversity, ecosystem services, and reduced environmental externalities) outcomes. We found that …
What Soil Is Worth: A Cost-Benefit Framework Analysis Of Syntropic Farming, Aubrey Kettley
What Soil Is Worth: A Cost-Benefit Framework Analysis Of Syntropic Farming, Aubrey Kettley
Independent Study Project (ISP) Collection
Syntropic farming, a type of regenerative agriculture, models its farming system after a forest. This type of farming prioritizes soil health while also providing a varied yield of crops. Because it is a fairly new system globally, little research has been done on the economic impacts of syntropic farming, and therefore the feasibility of scaling up regenerative systems like this. This study aims to analyze the economic feasibility of this system through a literature review and a cost-benefit analysis framework. The results highlight the applicability, environmental advantage and economic feasibility of the system. Based on the presented framework, the short …
The Effect Of Sample Grinding On Color-Based Predictions Of Soil Organic Carbon, Mason Rutgers
The Effect Of Sample Grinding On Color-Based Predictions Of Soil Organic Carbon, Mason Rutgers
Honors Program: Senior Projects (Public)
Measurements of soil color are widely accessible and can be used as indirect measures of soil organic carbon (SOC). Sensor-based soil color measurements, frequently used in quantitative studies to predict SOC, often use ground and sieved soil samples for color analysis. However, it is unknown whether the extra steps of drying, crushing, and sieving a sample improve the quantitative relationship between color and SOC. This study was conducted to evaluate color-based predictions of SOC using intact, sieved (<2 mm), and fine-ground soil samples from northwest Oklahoma. Moist soil color was measured using Munsell color charts (MCCs) and a Nix Mini 3™ portable color sensor (PCS). The color of the soil samples was measured before processing, after crushing to pass through a 2-mm sieve, and after mechanical grinding to less than 0.25-mm. Using Munsell value (from the MCC) and CIEL* (from the PCS) as predictor variables, regression analyses were conducted to develop SOC predictive functions for each physical state. The resulting coefficients of determination (R2) and root mean squared errors (RMSE) were used to assess model fits for predicting SOC. Model contrasts were calculated to evaluate significant differences between each predictive model. All models exhibited strong relationships (0.56 < R2 < 0.70, 0.20 < RMSE < 0.25) between soil lightness and predicted SOC. Models built using aggregated samples measured with both MCCs (R2= 0.70, RMSE= 0.20) and the PCS (R2= 0.69, RMSE= 0.21) produced the best results. Models built using intact samples measured using the PCS did perform significantly better on samples dark in color (CIEL* < 30). These results suggest that grinding soil samples does not improve color-based predictions of SOC using MCCs and the PCS.
The Role Of Geomorphological Context In Vegetative Succession Within The Breiðamerkurjökull Glacial Foreland, Lucas Nerbonne
The Role Of Geomorphological Context In Vegetative Succession Within The Breiðamerkurjökull Glacial Foreland, Lucas Nerbonne
Independent Study Project (ISP) Collection
As glaciers retreat worldwide at an accelerating pace, understanding primary succession in these newly exposed landscapes becomes increasingly critical. This study examines the initial vegetative colonization patterns in glacial forelands, focusing on the influence of geomorphological formations of resulting plant communities. By analyzing vegetative communities in glaciofluvial and push moraine deposits, this study highlights how the more varied, channelized morphologies of fluvial deposits create potential microclimates better conducive to heterogenous plant colonization than the homogenous terrain of the nearby push moraine. Vegetative coverage, sediment size, and species abundance was collected at 480 sites across 6 different historical glacial extents across …
Growing South Dakota (Spring 2024), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Spring 2024), College Of Agriculture, Food And Environmental Sciences
Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)
[Page] 3 Empowering the Next Generation of Agriculture
/="/">[Page] 5 Celebration of Faculty Excellence
/="/">[Page] 7 Judging Teams Provide Connection, Critical Skills
/="/">[Page] 11 Melanie Caffe: SDSU Oat Breeder Finds Motivation in Making a Difference for Farmers
/="/">[Page] 13 2024 CAFES Outstanding Seniors
/="/">[Page] 14 SDSU Celebrates Students Accepted to Veterinary Schools through Stethoscope Ceremony"
/="/">[Page] 15 New Researchers in CAFES
/="/">[Page] 17 Hitting the Mark – Shooting Sports Driving Growth in SDSU Extension 4-H Program
/="/">[Page] 19 A New Century Leads to a New Barn
/="/">[Page] 20 CAFES News & …
Impact Of Temperature On The Bionomics And Geographical Range Margins Of The Two-Spotted Field Cricket Gryllus Bimaculatus In The World: Implications For Its Mass Farming, Henlay J.O. Magara, Chrysantus M. Tanga, Brian L. Fisher, Abdelmutalab G.A. Azrag, Saliou Niassy, James P. Egonyu, Sylvain Hugel, Nana Roos, Monica A. Ayieko, Subramanian Sevgan, Sunday Ekesi
Impact Of Temperature On The Bionomics And Geographical Range Margins Of The Two-Spotted Field Cricket Gryllus Bimaculatus In The World: Implications For Its Mass Farming, Henlay J.O. Magara, Chrysantus M. Tanga, Brian L. Fisher, Abdelmutalab G.A. Azrag, Saliou Niassy, James P. Egonyu, Sylvain Hugel, Nana Roos, Monica A. Ayieko, Subramanian Sevgan, Sunday Ekesi
All Peer-Reviewed Publications
Gryllus bimaculatus (Orthoptera: Gryllidae) is widely considered an excellent nutrient source for food and feed. Despite its economic importance, there is limited information on the impact of temperature on the bionomics of this cricket to guide its effective and sustainable mass production in its geographical range. The biological parameters of G. bimaculatus were investigated at eight different temperatures ranging from 20–40∘C. The Insect Life-Cycle Modelling (ILCYM) program was used to fit linear and non-linear functions to the data to describe the influence of temperature on life history parameters and its farmability under the current and projected climate for 2050. Our …
Long-Term Soil Change In The Us Great Plains: An Evaluation Of The Haas Soil Archive, Mark A. Liebig, Francisco J. Calderon, Andrea K. Clemensen, Lisa Durso, Jessica L. Duttenhefner, Jed O. Eberly, Jonathan J. Halvorson, Virginia L. Jin, Kyle Mankin, Andrew J. Margenot, Catherine E. Stewart, Scott Van Pelt, Merle F. Vigil
Long-Term Soil Change In The Us Great Plains: An Evaluation Of The Haas Soil Archive, Mark A. Liebig, Francisco J. Calderon, Andrea K. Clemensen, Lisa Durso, Jessica L. Duttenhefner, Jed O. Eberly, Jonathan J. Halvorson, Virginia L. Jin, Kyle Mankin, Andrew J. Margenot, Catherine E. Stewart, Scott Van Pelt, Merle F. Vigil
Department of Agronomy and Horticulture: Faculty Publications
Diverse patterns of climate and edaphic factors challenge detection of soil property change in the US Great Plains. Because detectable soil change can take decades, insights into the trajectory of soil properties frequently require long-term site monitoring and, where available, associated soil archives to enable comparisons with initial or baseline states. Unfortunately, few multi-decadal soil change investigations have been conducted in this region. Here, we document effects of dryland cropping on a suite of soil properties by comparing matched historic (1947) and contemporary (2018) soil samples from the Haas Soil Archive at three sites in the US Great Plains: Moccasin, …
Assessment Of The Genotoxic Effect Of Pesticide (Profenophos And Cypermethrin) On Allium Cepa L. Through Comet Assay, Ali Hasnian, Muhammad Rizwan, Hamed Dadkhah-Aghdash ., Zahid Mehmood, Ayesha Iqbal, Zarbab Zulfiqar, Bin Yameen, Hafiz Naveed Anjum, Sohaib Muhammad, Muhammad Luqman, Andleeb Anwar Sardar, Muhammad Umer Farooq
Assessment Of The Genotoxic Effect Of Pesticide (Profenophos And Cypermethrin) On Allium Cepa L. Through Comet Assay, Ali Hasnian, Muhammad Rizwan, Hamed Dadkhah-Aghdash ., Zahid Mehmood, Ayesha Iqbal, Zarbab Zulfiqar, Bin Yameen, Hafiz Naveed Anjum, Sohaib Muhammad, Muhammad Luqman, Andleeb Anwar Sardar, Muhammad Umer Farooq
Journal of Bioresource Management
Pesticides are specially designed to control pests and help in increasing the yield of crops. This study aims to investigate the genotoxic effect of the major ingredients of commonly used pesticides (Profenophos and Cypermethrin) on Allium cepa L. in different regions of the province of Punjab, Pakistan. Profenophos and Cypermethrin pesticides are extensively used by local farmers. Six different dilutions of Profenophos and Cypermethrin pesticide ranging from, 0.5 ml/L, 1 ml/L, 1.5 ml/L, 2 ml/L, 2.5 ml/L and 3.0 ml/L were applied initially on seeds germination. Seeds grown in a 3.0 ml/L concentration showed a lower radical length percentage as …
Unlocking The Promise Of The ″Miracle Tree: A Review On Therapeutic Applications And Phytochemistry Of Moringa Oleifera L., Ali Zeeshan, Mubashrah Munir, Sehrish Sadia
Unlocking The Promise Of The ″Miracle Tree: A Review On Therapeutic Applications And Phytochemistry Of Moringa Oleifera L., Ali Zeeshan, Mubashrah Munir, Sehrish Sadia
Journal of Bioresource Management
Moringa oleifera, commonly known as the "miracle tree", has been used for centuries in traditional medicine and has recently garnered interest from the scientific community for its therapeutic potential. This review summarizes the current knowledge on the phytochemistry, nutritional composition, and medicinal properties of different parts of M. oleifera. The leaves, pods, bark, roots, seeds, and flowers contain various essential nutrients like vitamins, minerals, amino acids, antioxidants, and phytochemicals such as flavonoids, glucosinolates, and phenolic acids. These bioactive compounds confer anti-diabetic, anti-cancer, cardioprotective, anti-inflammatory, antimicrobial, immunomodulatory, anti-venom, and wound healing properties. Extracts and isolates from M. oleifera have shown …
Effect Of Harvest Season On The Physical Properties, Fatty Acid Composition, And Volatile Compounds Of Roasted Cacao Beans, Amornrat Chumthong, Nuttarisa Limjumrern, Chutikarn Saensano, Pornthep Teerawattanapong, Aekkaraj Nualla-Ong, Adirek Rugkong, Rawee Chiarawipa
Effect Of Harvest Season On The Physical Properties, Fatty Acid Composition, And Volatile Compounds Of Roasted Cacao Beans, Amornrat Chumthong, Nuttarisa Limjumrern, Chutikarn Saensano, Pornthep Teerawattanapong, Aekkaraj Nualla-Ong, Adirek Rugkong, Rawee Chiarawipa
Makara Journal of Science
The prevailing climate is an important factor affecting the development of the physical quality and flavor of cacao (Theobroma cacao L.) beans. The influence of harvest seasons on the physical, chemical, and flavor characteristics of cacao beans from Nakhon Si Thammarat Province, southern Thailand, was assessed. Among cacao beans, those harvested in the rainy season (R) had the highest fresh and dry weights and the lowest bean count per 100 g (87.00 ± 2.83). Although the overall fat content remained relatively constant across harvest seasons, cacao beans harvested in R exhibited a significantly higher fatty acid (C16:0, C18:1, and …
Eurasian Aspen (Populus Tremula L.): Central Europe's Keystone Species 'Hiding In Plain Sight', Antonín Kusbach, Jan Šebesta, Robert Hruban, Pavel Peška, Paul C. Rogers
Eurasian Aspen (Populus Tremula L.): Central Europe's Keystone Species 'Hiding In Plain Sight', Antonín Kusbach, Jan Šebesta, Robert Hruban, Pavel Peška, Paul C. Rogers
Aspen Bibliography
Knowledge of Eurasian aspen’s (Populus tremula L.) ecological and growth characteristics is of high importance to plant and wildlife community ecology, and noncommercial forest ecosystem services. This research assessed these characteristics, identified aspen’s habitat optimum, and examined causality of its current scarce distribution in central Europe. We analyzed a robust database of field measurements (4,656,130 stands) for forest management planning over 78,000 km2 of the Czech territory. Our analysis we used GIS techniques, with basic and multivariate statistics such as general linear models, ordination, and classification. Results describe a species of broad ecological amplitude that has heretofore attracted …
Grazing Management Of Tagasaste (Chamaecytisus Proliferus) For Sheep And Cattle Production In Southern Australia, N J. Edwards, G M. Allen, D M. Mcneill, C M. Oldham
Grazing Management Of Tagasaste (Chamaecytisus Proliferus) For Sheep And Cattle Production In Southern Australia, N J. Edwards, G M. Allen, D M. Mcneill, C M. Oldham
IGC Proceedings (1977-2023)
Direct grazing of hedgerows of tagasaste (Chamaecytisus proliferus) by sheep or cattle appear to be very robust systems. Tagasaste persists under a continuous grazing regime with cattle such that plant regrowth maintained between 5 and 10 cm in length produces in excess of 215 kg of animal liveweight/ha/year. This level of production is also sustained within a rotational grazing regime. Under both grazing systems cattle production within a year is highly seasonal, with liveweight gains from young cattle peaking at 1.0-1.5 kg/head/day in winter and spring, but dropping to maintenance only by late summer-autumn. Sheep, like cattle, can …
Shrub Palatability To Rusa Deer (Cervus Timorensis Russa) In New Caledonia, C Corniaux, S Le Bel, J M. Sarrailh
Shrub Palatability To Rusa Deer (Cervus Timorensis Russa) In New Caledonia, C Corniaux, S Le Bel, J M. Sarrailh
IGC Proceedings (1977-2023)
The objective of this study was to determine a palatability scale of five shrub legumes to rusa deer during the dry season in New Caledonia. Acacia ampliceps and Samanea saman remain low in acceptability. Gliricidia sepium is more palatable but quite less than Leucaena leucocephala (native cultivar) and Calliandra calothyrsus (San Ramon). Therefore, since the regression of Leucaena leucocephala population, Calliandra calothyrsus could be very promising to replace it in the deer diet. On the other hand, Acacia ampliceps seems to be the most interesting shrub legume to plant in the west coast, where soil erosion, due to successive droughts …
Fodder Production Of Multipurpose Trees In A Maize Farming System Of Subhumid Southern Africa, B H. Dzowela, L Hove, P L. Mafongoya
Fodder Production Of Multipurpose Trees In A Maize Farming System Of Subhumid Southern Africa, B H. Dzowela, L Hove, P L. Mafongoya
IGC Proceedings (1977-2023)
Ways to integrate fodder production into maize production systems under Southern Africa’s subhumid conditions have been studied. One way involves the planting of tree and grass fodder hedges along soil conservation contour-bunds in maize fields. Management factors that influence the productivity of maize and fodder components in the system are fodder spp., side-pruning and deferment of wet season cutting. The other option involves interplanting tree fodders with maize through the use of a coppicing tree such as Acacia angustissima. Practical applications of these methods in mixed crop-livestock production systems are discussed.
Differences In Chemical Composition Among Provenances Of Browse Species In A Subhumid Environment: Relation To Use As Supplements, B H. Dzowela, L Hove, P L. Mafongoya
Differences In Chemical Composition Among Provenances Of Browse Species In A Subhumid Environment: Relation To Use As Supplements, B H. Dzowela, L Hove, P L. Mafongoya
IGC Proceedings (1977-2023)
Studies were initiated in a subhumid Southern African environment to assess the chemical composition and nutritive value of Acacia angustissima (Mill.) Kuntze, Calliandra calothyrsus Meiss. and Leucaena species. The objective was to determine variability in crude protein (CP) concentration, acid detergent fibre (ADF), neutral detergent fibre (NDF), and soluble and insoluble proanthocyanidins from fodder samples of species, subspecies and provenances. A wide range was found in these parameters. The implications of these chemical composition factors, especially proanthocyanidins, on the use of these browse fodders in livestock feeding systems are discussed.
Tree Forages As Nitrogen Source For Ruminants In Sahelian Agro-Silvipastoral Systems, S T. Fall, B M. Doreau
Tree Forages As Nitrogen Source For Ruminants In Sahelian Agro-Silvipastoral Systems, S T. Fall, B M. Doreau
IGC Proceedings (1977-2023)
Tree forages contribute up to 80% DM and 100% nitrogen content in the ruminants diet in the Sahel during the dry season. However, crude protein (CP) concentration in browse within a wide range and variation factors remain to be elucidated for better integration of browses in ruminants feeding systems. Variation factors of CP content and in vivo digestibility of four Sahelian browse species were investigated to appreciate the potential as nitrogen sources in Sahelian ruminant feeding systems. Seasonal variations in nitrogen content were evaluated in different plants part of A. raddiana, B. rufescens, B. aegyptiaca and G. senegalensis harvested in …
Evaluation Of Animal Productivity In A Sustainable Grazing System Based On The Use Of Trees In Association With Pastures, J M. Iglesias Gomez
Evaluation Of Animal Productivity In A Sustainable Grazing System Based On The Use Of Trees In Association With Pastures, J M. Iglesias Gomez
IGC Proceedings (1977-2023)
Young bulls of different breeds ( Zebu, Holstein and F-1 strain Holstein Zebu) were grazing together on a meadow composed of Guinea grass (Panicum maximum), Brachiaria (Brachiaria decumbens) and a mixture of natural pastures, all in association with Leucaena (Leucaena leucocephala) sown at a density of 555 plants per ha in order to evaluate the potential of that system for beef production. A completely randomized design was used. The meadow was rotationally grazed at stocking rate of 3.6 animal per ha. During the 18 months of fattening the best results were obtained with the Zebu type. …
Changes In Understorey Pasture Composition In Agroforestry Regimes In New Zealand, M F. Hawke, A G. Gillingham
Changes In Understorey Pasture Composition In Agroforestry Regimes In New Zealand, M F. Hawke, A G. Gillingham
IGC Proceedings (1977-2023)
Long term Agroforestry trials were established in the North and South Islands of New Zealand between 1971-76. They compared a range of final tree stockings of Pinus radiata planted into pasture with open pasture control plots and were measured for tree growth parameters and agricultural production. This paper presents the results of pasture species changes over the period of tree age 10-22 years. Pasture species composition under Pinus radiata changed with time, dependent primarily on the rate of canopy closure. Changes occurred relatively rapidly in high tree stocked areas of 400 stems per hectare (sph) in the North Island trials …
Farmers' Screening Of Indigenous Fodder Trees And Shrubs In Kenya, R L. Roothaert, H K. Arimi, E N. Kamau
Farmers' Screening Of Indigenous Fodder Trees And Shrubs In Kenya, R L. Roothaert, H K. Arimi, E N. Kamau
IGC Proceedings (1977-2023)
The lack of fodder quantity and quality is a constraint for small scale livestock production systems in central Kenya which are intensive or are rapidly becoming so. This study examined farmers’ knowledge about indigenous fodder trees and shrubs (IFTS) which are fed to livestock. The study consisted of a formal survey in three agroecological zones with mean annual rainfall varying from 750 to 1400 mm. Farmers rated IFTS for different qualities, which were analysed by Chi square. Differences of ratings among species for these qualities were significant (p<0.05). The most promising species for the sub-humid zone, in terms of what farmers want to plant and in terms of preliminary nutritive analysis, were: Tithonia diversifolia, Commiphora zimmermanii, Ficus spp. and Trema orientalis. The species …
Biological Control Of Three Major Cucumber And Pepper Pests: Whiteflies, Thrips, And Spider Mites, In High Plastic Tunnels Using Two Local Phytoseiid Mites, Yusuf Abou Jawdah, Nour Ezzedine, Aya Fardoun, Samer Kharroubi, Hana Sobh, Hagop S. Atamian, Margaret S. Skinner, Bruce Parker
Biological Control Of Three Major Cucumber And Pepper Pests: Whiteflies, Thrips, And Spider Mites, In High Plastic Tunnels Using Two Local Phytoseiid Mites, Yusuf Abou Jawdah, Nour Ezzedine, Aya Fardoun, Samer Kharroubi, Hana Sobh, Hagop S. Atamian, Margaret S. Skinner, Bruce Parker
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
To enhance food security, food safety, and environmental health, a bio-based integrated pest management (BIPM) strategy was evaluated at two coastal locations in Lebanon as an alternative to toxic pesticide sprays in commercial high-arched plastic tunnels common in many countries. The evaluation occurred during two cucumber and pepper cropping seasons: spring and fall. At each site, two commercial tunnels were used; farmers’ conventional practices were applied in one tunnel, while the BIPM approach was followed in the second tunnel. In the farmers’ practices, a total of 14 sprays of insecticide/acaricide mixtures were applied during the spring growing season, and 6 …
Isolation And Assessment Of Halophilic Rhizobacteria Plant Growth-Promoting Traits For Alleviating Salt Stress In Wheat, Alev Sezen, Ömer Faruk Algur, Ferruh Aşçi, Arzu Ünal
Isolation And Assessment Of Halophilic Rhizobacteria Plant Growth-Promoting Traits For Alleviating Salt Stress In Wheat, Alev Sezen, Ömer Faruk Algur, Ferruh Aşçi, Arzu Ünal
Turkish Journal of Botany
In this study, 22 halophilic bacteria were isolated from plants collected together with rhizosphere soil from habitats with high salt content in and around Erzurum. Various plant growth-promoting (PGP) properties of these isolates (nitrogen fixing, phosphate solubilizing, ACC deaminase, and IAA and siderephore production) were determined. Bacteria positive for PGP properties and various combinations with these bacteria were subjected to pot experiments in saline medium (greenhouse conditions) and their effects on growth parameters (root and stem length, fresh and dry weight, protein, and chlorophyll and carotenoid content) of wheat plants were determined. As a result of the research, the isolates …
Spatial Analysis Of Land Use By Cattle Herds In A Village Of The Sudanese Zone In Senegal. Application For Grazing System Improvement, A Ickowicz, J C. Usengumuremyi, D Bastien, N De Choudens
Spatial Analysis Of Land Use By Cattle Herds In A Village Of The Sudanese Zone In Senegal. Application For Grazing System Improvement, A Ickowicz, J C. Usengumuremyi, D Bastien, N De Choudens
IGC Proceedings (1977-2023)
Spatial analysis of land use by cattle herds in the sub-humid area of Senegal is conducted through the utilisation of a Geographic Information System. This tool allows us to establish relationships between spatial practices, ruminant nutrition and performances. It gives leads to proposals for the improvement of the extensive ruminant feeding system.
Using Cuticular Wax Alkanes And Computer Simulation To Estimate Diet Selection, Herbage Intake And Nutrient Cycling In Grazing Sheep, H Dove, R J. Simpson
Using Cuticular Wax Alkanes And Computer Simulation To Estimate Diet Selection, Herbage Intake And Nutrient Cycling In Grazing Sheep, H Dove, R J. Simpson
IGC Proceedings (1977-2023)
In grazing ewes, plant cuticular wax alkanes were used as markers to estimate diet selection, herbage intake, N intake and N excretion in faeces. Pasture and animal data were then used as inputs to the decision-support system GrazFeed, which simulates grazing and digestion to predict herbage intake, N intake and N excretion. Estimated and predicted intakes agreed closely, especially for N intake, and it is concluded that, subject to further investigation of the possibility that GrazFeed slightly under-estimated faecal N excretion, the close agreement between estimated and predicted OM and N intakes suggests that this combined use of alkane methods …
Foraging Behavior Of Zebu Cattle Grazing Deciduous Forest, L Ortega, J Castillo, F Rivas
Foraging Behavior Of Zebu Cattle Grazing Deciduous Forest, L Ortega, J Castillo, F Rivas
IGC Proceedings (1977-2023)
The objective of this study was to determine whether the foraging behavior of Zebu cattle in deciduous forest was affected by time of the year. Data were recorded during the wet, nortes and dry seasons. Ten Zebu cows were used to record biting rate. Intake and bite size was estimated using three esophageally fistulated animals. Cattle browsed shrubs and trees in the wet season and ingested litter leaves in the dry season which resulted in differences of ingestive behavior. In general, bite size and intake were higher in the wet season and decreased during the nortes and dry seasons.
Characterization Of Grazing Patterns In Cool-Season Annual And Warm-Season Perennial Grass Pastures, G E. Aiken, M S. West, D I. Bransby
Characterization Of Grazing Patterns In Cool-Season Annual And Warm-Season Perennial Grass Pastures, G E. Aiken, M S. West, D I. Bransby
IGC Proceedings (1977-2023)
Pastures are often either under- or over-grazed, which can affect both pasture sustainability and livestock performance. Disk meter heights were measured for rye (Secale cereale L.) -ryegrass (Lolium L. multiflorum Lam.) pasture to characterize stocking rate (2.5, 3.7, and 4.9 steers/ha) effects on grazing patterns. In another study, grazing indices were calculated for bermudagrass [Cynodon dactylon (L.) Pers.] to describe pasture utilization over time for three stocking rates (3.0, 5.9, 8.9 steers/ha). Distributions of DMH for rye-ryegrass showed distinct grazing patterns for each stocking rate, with the distributions changing from bimodal to multi-modal from heavy to light …
Relationships Between The Nutrient Content Of Irrigated Pasture On Offer And That Selected By Grazing Dairy Cows, W J. Wales, C R. Stockdale, P T. Doyle
Relationships Between The Nutrient Content Of Irrigated Pasture On Offer And That Selected By Grazing Dairy Cows, W J. Wales, C R. Stockdale, P T. Doyle
IGC Proceedings (1977-2023)
An experiment was conducted to determine the dry matter, energy, crude protein and fibre intake by dairy cows in late lactation when grazing perennial pasture offered at allocations of 15, 20, 30 and 40 kg DM/cow.day. The cows consistently selected a diet 10% higher in digestibility than that on offer. In contrast, cows selected diets with crude protein levels increasing from 22% to 40%, above that in pasture on offer, as pasture allocation increased. A similar pattern was observed for the intake of white clover (Trifolium repens L). The increase in the concentration of crude protein in the diet …
Species Preference Influences On Cattle Grazing Behaviour, G P. Cosgrove, C B. Anderson, R H. Fletcher
Species Preference Influences On Cattle Grazing Behaviour, G P. Cosgrove, C B. Anderson, R H. Fletcher
IGC Proceedings (1977-2023)
Lotus corniculatus offers specific nutritional benefits to animals, but exploiting these advantages in grazing systems depends on the proportion of lotus in the feed offered and the animals' preference, hence desire to select for it. To determine preference for lotus, heifers were offered free-choice in contrasting, spatially separated but adjacent monocultures of ryegrass-lotus or red clover-lotus. Following a one-week period to adjust to the species offered and their arrangement, 10 young heifers were observed at 10-minute intervals during daylight hours, and the species they were on and whether or not they were grazing was recorded. This procedure was conducted in …
Influence Of Vegetation Patch Characteristics On Discriminatory Grazing By Dairy Cows, W M. Griffiths, J Hodgson, G C. Arnold, C W. Homes
Influence Of Vegetation Patch Characteristics On Discriminatory Grazing By Dairy Cows, W M. Griffiths, J Hodgson, G C. Arnold, C W. Homes
IGC Proceedings (1977-2023)
Two studies involving the sequential grazing of sets of patches on a perennial ryegrass (Lolium perenne) sward were carried out to investigate the effects of patch characteristics on the selective behaviour of grazing cattle. Experiment 1 involved a range of combinations of sward height (8.9 - 19.6 cm) and bulk density (1.33 - 1.67 mg DM/cm3). Distribution of grazing activity (number of bites or residence time) was strongly and positively related to patch height, but additional effects of variation in bulk density were limited. In Experiment 2 patches were manipulated to offer contrasts in both height (13.4 and …